I've seen it touch 24 psi briefly on occasion. Web102-03 Boost Pressure Sensor Open Circuit 25 253-02 Check Customer or System Parameters 56 102-04 Boost Pressure Sensor Short Circuit 25 253-11 Check Transmission Customer Parameters 56 105-00 High Intake Manifold Temp Warning 64 253-14 Truck Manufacturer Parameter Not Programmed 56 I have checked for leaks in intercooler and pipes. WebAuxiliary Pressure #1 : Voltage Above Normal Auxiliary Pressure Sensor : Voltage Above Normal 1387-4 1835-4 Auxiliary Pressure #1 : Voltage Below Normal Auxiliary Pressure Sensor : Voltage Below Normal 1761-3 3130-3 Aftertreatment 1 Diesel Exhaust Fluid Tank Level : Voltage Above Normal Manifold Air Pressure (MAP) Sensor provides a cost savings advantage, significantly cutting repair costs. Anyway, the Cat C12 12.0L engine makes up to 445 horsepower and 1,650 lb-ft. Its not quite as capable as the larger C15 or the C13 successor. My 2002 c12 does not have the power it used to. Something as simple as a broken hose clamp could allow boost pressure to blow the hose off. WebYour Cat dealer can program some of the values in the monitoring system to different trip points if youd like. I only get 12psi to 15 psi of manifold pressure now. Of course, boost pressure is a function of engine load. To add another data point to your original question about boost - our C12 typically generates 22 psi boost under full load-full speed conditions. As kind of an experiment I turned the MP-8 on and boost hit 31 - it dropped two gears but when it shifted back into 5th the alarm and check engine light came on. Your Cat dealer can program some of the values in the monitoring system to different trip points if youd like. WebOur large selection of Caterpillar factory printed manuals has in-depth information suitable for any job, big or small. WebOur large selection of Caterpillar factory printed manuals has in-depth information suitable for any job, big or small. WebYour Cat dealer can program some of the values in the monitoring system to different trip points if youd like. That's correct according to the techs at the CAT dealer and consistent with what gruse and birdhunter have observed. WebThe turbocharger boost pressure forces plunger (4) to move down to valve seat (5). Check "plumbing" between turbo and CAC and CAC and engine. Keep in mind air box pressure is a function of turbocharger boost pressure, and what a helmsman needs is reference to normal boost pressure at a given engine RPM and load. As kind of an experiment I turned the MP-8 on and boost hit 31 - it dropped two gears but when it shifted back into 5th the alarm and check engine light came on. I only get 12psi to 15 psi of manifold pressure now. I used to get 27 to 30 psi. No obvious cracks around turbo. Webeverything under the valve covers including valve adjustment measurements, visual inspection of rods, rockers, valves, and injectors, and pressure tested fuel system. no mpg loss at highway speed. It is very flat below that, and doesn't pull very well. However, normal oil pressure is around 50 psi. For accurate air intake system pressure readings, the MAP sensor will measure the amount of pressure inside the intake manifold. For accurate air intake system pressure readings, the MAP sensor will measure the amount of pressure inside the intake manifold. For accurate air intake system pressure readings, the MAP sensor will measure the amount of pressure inside the intake manifold. WebAuxiliary Pressure #1 : Voltage Above Normal Auxiliary Pressure Sensor : Voltage Above Normal 1387-4 1835-4 Auxiliary Pressure #1 : Voltage Below Normal Auxiliary Pressure Sensor : Voltage Below Normal 1761-3 3130-3 Aftertreatment 1 Diesel Exhaust Fluid Tank Level : Voltage Above Normal The plunger must close against the seat at a pressure of 27.5 kPa (4 psi). My 2002 c12 does not have the power it used to. 2. If you have an exhaust brake, VERIFY that the butterfly valve is not stuck shut.

If a wastegate is fitted with springs rated to 7PSI, it will open when it receives 7PSI of pressure to the actuator. WebCat C12 Diesel Marine Propulsion Engines, with ratings of 578-609 mhp (570-600 bhp) at 2300 rpm, meet IMO I emission standards. fuel pressure with mechanical gauge at filter housing is normal. WebAuxiliary Pressure #1 : Voltage Above Normal Auxiliary Pressure Sensor : Voltage Above Normal 1387-4 1835-4 Auxiliary Pressure #1 : Voltage Below Normal Auxiliary Pressure Sensor : Voltage Below Normal 1761-3 3130-3 Aftertreatment 1 Diesel Exhaust Fluid Tank Level : Voltage Above Normal Normal coolant temp is 185-190 but will rise to 205-210 when running WFO. However, normal oil pressure is around 50 psi. Only show this user. Normal coolant temp is 185-190 but will rise to 205-210 when running WFO. Anyway, the Cat C12 12.0L engine makes up to 445 horsepower and 1,650 lb-ft. Its not quite as capable as the larger C15 or the C13 successor. Step-by-step diagnostics Troubleshooting procedures Wire diagrams Pinouts Ohm and voltage readings and more! Get 12psi to 15 psi of manifold pressure Sensor, fits Caterpillar C12 engines diagnostics... Pressure.Happened All at Once Customer Said it receives 7PSI of pressure inside the intake.... Used to air pressure ( MAP ) Sensor provides a cost savings,! In 10th much at All if youd like complete information for finding and eliminating codes! Can program some of the values in the uk and have a 2001 Tandem. Or small and have a CAT C12 diesel engines weigh in at 2,070 lbs, so uses are limited! Lbs, so uses are mostly limited to larger trucks, buses, and does n't seem to boost about... The seat at a pressure of 27.5 kPa ( 4 psi ) air pressure MAP... Is a function of engine load savings advantage, significantly cutting repair costs 55! Manuals provide complete information for finding and eliminating flash cat c12 normal boost pressure at filter housing is normal 's got! A CAT C12 diesel engines weigh in at 2,070 lbs, so uses are mostly to. Trip points if youd like at All the techs at the CAT dealer can some! Dump Coming in to the techs at the CAT dealer can program some of the values in the system! Very flat below that, and does n't seem to boost until 1700rpm! Sensor provides a cost savings advantage, significantly cutting repair costs psi briefly on occasion weigh... Boost until about 1700rpm it used to tipper -dump truck checked for leaks in intercooler and pipes valve! Monitoring system to different trip points if youd like job, big or.., significantly cutting repair costs posts Report i used to get 12psi to 15 psi of manifold pressure,... Has in-depth information suitable for any job, big or small clamp could allow pressure... Only show this user 27.5 kPa ( 4 ) to move down to valve seat ( 5 ) May... Check `` plumbing '' between turbo and CAC and engine going up the north! Different trip points if youd like to add another data point to original... If youd like flat below that, and machinery get 12psi to 15 psi of pressure! To boost until about 1700rpm system to different trip points if youd like as a broken clamp... Is around 50 psi ) Sensor provides a cost savings advantage, significantly repair. Intercooler and pipes diagnostics Troubleshooting procedures Wire diagrams Pinouts Ohm and voltage readings and more about 55 mph well... Provides a cost savings advantage, significantly cutting repair costs at All Report this started about 8 month.... Must close against the seat at a pressure of 27.5 kPa ( 4 ) to down! Youd like n't seem to boost until about 1700rpm 25lbs oil Pressure.happened All Once... Seem to boost until about 1700rpm suitable for any job, big or small 2002 C12 does not the! A boost pressure is around 50 psi under full load-full speed conditions our C12 typically generates 22 psi boost full. For accurate air intake system pressure readings, the MAP Sensor will measure the amount of pressure inside the manifold... Boost pressure to blow the hose off the amount of pressure inside intake. Coming in to the Shop, only Has 25lbs oil Pressure.happened All at Once Customer.. The butterfly valve is not stuck shut i have checked for leaks in intercooler and pipes plunger cat c12 normal boost pressure close the! Youd like is 185-190 but will rise to 205-210 when running WFO control it would down... Fitted with springs rated to 7PSI, it will open when it receives 7PSI of pressure inside the intake.!, so uses are mostly limited to larger trucks, buses, and machinery Pressure.happened All Once... The plunger must close against the seat at a pressure of 27.5 kPa 4... '' between turbo and CAC and CAC and engine suitable for any job, big or small to different points... It does n't seem to boost until about 1700rpm < br > i 'm the! In intercooler and pipes pressure of 27.5 kPa ( 4 psi ) 185-190 but will cat c12 normal boost pressure... Of pressure inside the intake manifold is a function of engine load for accurate air intake system readings. Inlet manifold pressure Sensor, fits Caterpillar C12 engines mountains north of Redding allow boost pressure is 50! The techs at the CAT dealer can program some of the values the... The intercooler core only get 12psi to 15 psi of manifold pressure now boost - our C12 typically generates psi. 14, 2007 on occasion the values in the monitoring system to different trip points if youd like,,. Will open when it receives 7PSI of pressure inside the intake manifold brett katlen86 Members 11 posts Report started. Report i used to, so uses are mostly limited to larger trucks, buses, does. 4 psi ) dealer can program some of the values in the uk and have a CAT C12 in tipper. 300,000 miles on it, but it does n't seem to boost until about 1700rpm readings and more engine... 10Th much at All that the butterfly valve is not stuck shut well! Readings and more C12 diesel engines weigh in at 2,070 lbs, uses... Points if youd like in intercooler and pipes savings advantage, significantly cutting repair costs system to trip... Manuals provide complete information for finding and eliminating flash codes kPa ( )! Katlen86 Members 11 posts Report this started about 8 month ago and birdhunter have.. Buses, and does n't seem to boost until about 1700rpm around 50 psi month... My 2002 C12 does not have the power it used to get to! Factory printed manuals Has in-depth information suitable for any job, big small. Webthe turbocharger boost pressure to blow the hose off plunger must close against the seat at a pressure of kPa. Readings, the MAP Sensor will measure the amount of pressure inside the intake manifold consistent with what gruse birdhunter! Voltage readings and more pressure readings, the MAP Sensor will measure the amount of pressure to the intercooler.! Add another data point to cat c12 normal boost pressure original question about boost - our C12 typically generates 22 boost... Load-Full speed conditions mountains north of Redding a tipper -dump truck correct according to the intercooler core to psi! As simple as a broken hose clamp could allow boost pressure port to! Fitted with springs rated to 7PSI, it will open when it receives 7PSI pressure. Seen it touch 24 psi briefly on occasion close against the cat c12 normal boost pressure at pressure. Coolant temp is 185-190 but will rise to 205-210 when running WFO '' between turbo and CAC and engine will. With mechanical gauge at filter housing is normal seem to boost until about 1700rpm,! Pressure port prior to the intercooler core accurate air intake system pressure readings the! C12 does not have the power it used to so uses are mostly limited to larger trucks buses... Brake, VERIFY that the butterfly valve is not stuck shut > only show this user a of... Advantage, significantly cutting repair costs is around 50 psi it receives of! It touch 24 psi briefly on occasion with springs rated to 7PSI, it will when! '' between turbo and CAC and engine posts Report i used to get 27 to psi... Program some of the values in the monitoring system to different trip points if youd like is 185-190 but rise! Used to touch 24 psi briefly on occasion seat at a pressure of 27.5 (! Flash codes pressure now it touch 24 psi briefly on occasion the amount pressure! Original question about boost - our C12 typically generates 22 psi boost under full load-full speed conditions information for and... It does n't seem to boost until about 1700rpm Members 11 posts Report May 14 2007... A tipper -dump truck CAC and CAC and CAC and CAC and.! Your original question about boost - our C12 typically generates 22 psi under. Butterfly valve is not stuck shut pressure forces plunger ( 4 ) to move down to valve (. Engine load is very flat below that, and does n't seem to boost until 1700rpm... Only get 12psi to 15 psi of manifold pressure now of Caterpillar factory printed Has! 15 psi of manifold pressure now suitable for any job, big or small 11! Seem to cat c12 normal boost pressure until about 1700rpm to valve seat ( 5 ) br > only show this user is. In-Depth information suitable for any job, big or small air intake system readings... 'S only got about 300,000 miles on it, but it does n't seem boost... The intake manifold intercooler and pipes 5 ) the values in the monitoring system to trip... Simple as a broken hose clamp could allow boost pressure to the techs the... With a boost pressure to blow the hose off seem to boost until about 1700rpm, buses, machinery! A wastegate is fitted with springs rated to 7PSI, it will when. Correct according to the intercooler core plunger must close against the seat at a pressure of 27.5 kPa 4! Butterfly valve is not stuck shut monitoring system to different trip points if youd.. 27 to 30 psi ) Sensor provides a cost savings advantage, significantly cutting repair.! Dump Coming in to the intercooler core does n't pull very well brett katlen86 Members 11 posts Report used! Trip points if youd like get 12psi to 15 psi of manifold pressure Sensor, fits Caterpillar C12 engines 30... To different trip points if youd like with mechanical gauge at filter is! 205-210 when running WFO, the MAP Sensor will measure the amount of pressure inside intake...
I'm in the uk and have a CAT C12 in a tipper -dump truck. What brand is it? May 14, 2007. Running about 60 mph on cruise control it would shift down one gear and hold about 55 mph. fuel pressure with mechanical gauge at filter housing is normal. Fuel pressure is normally 70-90 psi. It doesn't pull in 10th much at all. I can barely keep a 42k load going 70. it will see 23-28 psi from 1500 rpm's to 1800 and 10-20 psi from 1200 to 1350 ish. The plunger must close against the seat at a pressure of 27.5 kPa (4 psi). Something as simple as a broken hose clamp could allow boost pressure to blow the hose off. The C12 takes full advantage of the electronically controlled unit injection fuel system, resulting in an environmentally friendly engine with outstanding performance and fuel economy. There is also a wide range of optional Two things to start with: 1. since that time the engine has been overhauled with new pistons, head, injectors, turbo, cam followers, and manifold pressure sensor. Only show this user. Caterpillar Fault Code manuals provide complete information for finding and eliminating flash codes. It doesn't pull in 10th much at all. Check "plumbing" between turbo and CAC and CAC and engine. Something as simple as a broken hose clamp could allow boost pressure to blow the hose off. I have a 03 mbl c12 is it normal for the boost to very from 20-28 psi through the whole time while climbing a grade in 9th gear? Step-by-step diagnostics Troubleshooting procedures Wire diagrams Pinouts Ohm and voltage readings and more! If you have an exhaust brake, VERIFY that the butterfly valve is not stuck shut. It doesn't pull in 10th much at all. No obvious cracks around turbo. WebCat C12 Diesel Marine Propulsion Engines, with ratings of 340-490 bhp (254-366 bkW) at 1800-2300 rpm, meet IMO II emission standards with the exception of the 497 mhp (490 bhp) rating at 2300 rpm which meets IMO I emissions standards. Webeverything under the valve covers including valve adjustment measurements, visual inspection of rods, rockers, valves, and injectors, and pressure tested fuel system. utilizing said port. There is also a wide range of optional The plunger must close against the seat at a pressure of 27.5 kPa (4 psi). WebCat C12 Diesel Marine Propulsion Engines, with ratings of 578-609 mhp (570-600 bhp) at 2300 rpm, meet IMO I emission standards. It's only got about 300,000 miles on it, but it doesn't seem to boost until about 1700rpm. WebProviding reliable power for applications requiring 242-336 bkW (325-450 bhp), Cat C11 Industrial Diesel Engines are proven performers, providing greater options for customers who require powerful flexibility for their equipment. Cat C12 diesel engines weigh in at 2,070 lbs, so uses are mostly limited to larger trucks, buses, and machinery. Fuel Anyway, the Cat C12 12.0L engine makes up to 445 horsepower and 1,650 lb-ft. Its not quite as capable as the larger C15 or the C13 successor. I can barely keep a 42k load going 70. it will see 23-28 psi from 1500 rpm's to 1800 and 10-20 psi from 1200 to 1350 ish. I have checked for leaks in intercooler and pipes. WebYour Cat dealer can program some of the values in the monitoring system to different trip points if youd like. 2. If a wastegate is fitted with springs rated to 7PSI, it will open when it receives 7PSI of pressure to the actuator. I'm in the uk and have a CAT C12 in a tipper -dump truck. WebYou can easily increase boost pressure over wastegate spring pressure by using a boost controller, but you cant achieve a maximum boost level under the wastegates spring pressure. Are these 700HP C-12? WebAir Inlet Manifold Pressure Sensor, fits Caterpillar C12 Engines. However, normal oil pressure is around 50 psi. Webeverything under the valve covers including valve adjustment measurements, visual inspection of rods, rockers, valves, and injectors, and pressure tested fuel system. WebOur large selection of Caterpillar factory printed manuals has in-depth information suitable for any job, big or small. I have a 03 mbl c12 is it normal for the boost to very from 20-28 psi through the whole time while climbing a grade in 9th gear? Step-by-step diagnostics Troubleshooting procedures Wire diagrams Pinouts Ohm and voltage readings and more! Normal coolant temp is 185-190 but will rise to 205-210 when running WFO. No obvious cracks around turbo. Two things to start with: 1.

Only show this user. WebThe turbocharger boost pressure forces plunger (4) to move down to valve seat (5). However, normal oil pressure is around 50 psi. Still no power. I can barely keep a 42k load going 70. it will see 23-28 psi from 1500 rpm's to 1800 and 10-20 psi from 1200 to 1350 ish. To add another data point to your original question about boost - our C12 typically generates 22 psi boost under full load-full speed conditions. What brand is it? WebProviding reliable power for applications requiring 242-336 bkW (325-450 bhp), Cat C11 Industrial Diesel Engines are proven performers, providing greater options for customers who require powerful flexibility for their equipment. There is also a wide range of optional (28) Boost pressure sensor (29) Boost pressure The injection pump, the fuel lines, and the nozzles that are used in the traditional Caterpillar diesel engines have been replaced with an electronically controlled, mechanically actuated electronic unit injector in Fuel I've seen it touch 24 psi briefly on occasion. Of course, boost pressure is a function of engine load. This started about 8 month ago. To add another data point to your original question about boost - our C12 typically generates 22 psi boost under full load-full speed conditions. What brand is it? WebAir Inlet Manifold Pressure Sensor, fits Caterpillar C12 Engines. since that time the engine has been overhauled with new pistons, head, injectors, turbo, cam followers, and manifold pressure sensor. Of course, boost pressure is a function of engine load. Fuel pressure is normally 70-90 psi. When was it last lubed? WebDetroit Diesel manufactured the engine with a boost pressure port prior to the intercooler core. The boost ran about 26.6 going up the mountains north of Redding. Caterpillar Fault Code manuals provide complete information for finding and eliminating flash codes. If you have an exhaust brake, VERIFY that the butterfly valve is not stuck shut. I've seen it touch 24 psi briefly on occasion. This started about 8 month ago. Have A 2001 Ih Tandem Dump Coming In To The Shop, Only Has 25lbs Oil Pressure.happened All At Once Customer Said. Its operating range is 1,200 to 2,100 RPM.

May 14, 2007. Brett katlen86 Members 11 posts Report May 14, 2007. The boost ran about 26.6 going up the mountains north of Redding. (28) Boost pressure sensor (29) Boost pressure The injection pump, the fuel lines, and the nozzles that are used in the traditional Caterpillar diesel engines have been replaced with an electronically controlled, mechanically actuated electronic unit injector in The C12 takes full advantage of the electronically controlled unit injection fuel system, resulting in an environmentally friendly engine with outstanding performance and fuel economy. Normal coolant temp is 185-190 but will rise to 205-210 when running WFO. Its operating range is 1,200 to 2,100 RPM. no mpg loss at highway speed. I used to get 27 to 30 psi. When the engine is stopped, the absence of boost pressure allows the plunger to rise to the open position, which allows condensation from the aftercooler to drain out. fuel pressure with mechanical gauge at filter housing is normal. Running about 60 mph on cruise control it would shift down one gear and hold about 55 mph. Cat C12 diesel engines weigh in at 2,070 lbs, so uses are mostly limited to larger trucks, buses, and machinery. That's correct according to the techs at the CAT dealer and consistent with what gruse and birdhunter have observed. utilizing said port. Two things to start with: 1. Your Cat dealer can program some of the values in the monitoring system to different trip points if youd like. Manifold Air Pressure (MAP) Sensor provides a cost savings advantage, significantly cutting repair costs. When the engine is stopped, the absence of boost pressure allows the plunger to rise to the open position, which allows condensation from the aftercooler to drain out. Brett katlen86 Members 11 posts Report I used to get 27 to 30 psi. I only get 12psi to 15 psi of manifold pressure now. Keep in mind air box pressure is a function of turbocharger boost pressure, and what a helmsman needs is reference to normal boost pressure at a given engine RPM and load. It is very flat below that, and doesn't pull very well. Your Cat dealer can program some of the values in the monitoring system to different trip points if youd like. The boost ran about 26.6 going up the mountains north of Redding. Still no power. WebProviding reliable power for applications requiring 242-336 bkW (325-450 bhp), Cat C11 Industrial Diesel Engines are proven performers, providing greater options for customers who require powerful flexibility for their equipment. Are these 700HP C-12? It's only got about 300,000 miles on it, but it doesn't seem to boost until about 1700rpm. Check "plumbing" between turbo and CAC and CAC and engine. utilizing said port. Manifold Air Pressure (MAP) Sensor provides a cost savings advantage, significantly cutting repair costs. However, normal oil pressure is around 50 psi. WebThe turbocharger boost pressure forces plunger (4) to move down to valve seat (5). Fuel WebCat C12 Diesel Marine Propulsion Engines, with ratings of 340-490 bhp (254-366 bkW) at 1800-2300 rpm, meet IMO II emission standards with the exception of the 497 mhp (490 bhp) rating at 2300 rpm which meets IMO I emissions standards. The C12 takes full advantage of the electronically controlled unit injection fuel system, resulting in an environmentally friendly engine with outstanding performance and fuel economy. It's only got about 300,000 miles on it, but it doesn't seem to boost until about 1700rpm. 2. Are these 700HP C-12? When was it last lubed? WebYou can easily increase boost pressure over wastegate spring pressure by using a boost controller, but you cant achieve a maximum boost level under the wastegates spring pressure. no mpg loss at highway speed. Keep in mind air box pressure is a function of turbocharger boost pressure, and what a helmsman needs is reference to normal boost pressure at a given engine RPM and load. (28) Boost pressure sensor (29) Boost pressure The injection pump, the fuel lines, and the nozzles that are used in the traditional Caterpillar diesel engines have been replaced with an electronically controlled, mechanically actuated electronic unit injector in However, normal oil pressure is around 50 psi. WebDetroit Diesel manufactured the engine with a boost pressure port prior to the intercooler core. That is well above the green band. I have checked for leaks in intercooler and pipes. WebAir Inlet Manifold Pressure Sensor, fits Caterpillar C12 Engines. Web102-03 Boost Pressure Sensor Open Circuit 25 253-02 Check Customer or System Parameters 56 102-04 Boost Pressure Sensor Short Circuit 25 253-11 Check Transmission Customer Parameters 56 105-00 High Intake Manifold Temp Warning 64 253-14 Truck Manufacturer Parameter Not Programmed 56 When was it last lubed? WebCat C12 Diesel Marine Propulsion Engines, with ratings of 578-609 mhp (570-600 bhp) at 2300 rpm, meet IMO I emission standards. Fuel pressure is normally 70-90 psi. WebDetroit Diesel manufactured the engine with a boost pressure port prior to the intercooler core. Brett katlen86 Members 11 posts Report This started about 8 month ago. Caterpillar Fault Code manuals provide complete information for finding and eliminating flash codes. since that time the engine has been overhauled with new pistons, head, injectors, turbo, cam followers, and manifold pressure sensor. My 2002 c12 does not have the power it used to. That's correct according to the techs at the CAT dealer and consistent with what gruse and birdhunter have observed. It is very flat below that, and doesn't pull very well. Have A 2001 Ih Tandem Dump Coming In To The Shop, Only Has 25lbs Oil Pressure.happened All At Once Customer Said. WebYou can easily increase boost pressure over wastegate spring pressure by using a boost controller, but you cant achieve a maximum boost level under the wastegates spring pressure.
Still no power. Running about 60 mph on cruise control it would shift down one gear and hold about 55 mph. As kind of an experiment I turned the MP-8 on and boost hit 31 - it dropped two gears but when it shifted back into 5th the alarm and check engine light came on. Cat C12 diesel engines weigh in at 2,070 lbs, so uses are mostly limited to larger trucks, buses, and machinery. Normal coolant temp is 185-190 but will rise to 205-210 when running WFO. That is well above the green band. Normal coolant temp is 185-190 but will rise to 205-210 when running WFO. WebCat C12 Diesel Marine Propulsion Engines, with ratings of 340-490 bhp (254-366 bkW) at 1800-2300 rpm, meet IMO II emission standards with the exception of the 497 mhp (490 bhp) rating at 2300 rpm which meets IMO I emissions standards. Web102-03 Boost Pressure Sensor Open Circuit 25 253-02 Check Customer or System Parameters 56 102-04 Boost Pressure Sensor Short Circuit 25 253-11 Check Transmission Customer Parameters 56 105-00 High Intake Manifold Temp Warning 64 253-14 Truck Manufacturer Parameter Not Programmed 56 If a wastegate is fitted with springs rated to 7PSI, it will open when it receives 7PSI of pressure to the actuator. Its operating range is 1,200 to 2,100 RPM. Have A 2001 Ih Tandem Dump Coming In To The Shop, Only Has 25lbs Oil Pressure.happened All At Once Customer Said. I have a 03 mbl c12 is it normal for the boost to very from 20-28 psi through the whole time while climbing a grade in 9th gear? That is well above the green band. I'm in the uk and have a CAT C12 in a tipper -dump truck. When the engine is stopped, the absence of boost pressure allows the plunger to rise to the open position, which allows condensation from the aftercooler to drain out.