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7 3 ford diesel engine diagram

Where is the intake valve

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SOURCE: p2004 intake valve stuck open

code p2004 refers to intake manifold air control actuator-bank 1--actuator stuck open===Causes---wiring--intake manifold air control actuator---mechanical fault .I would check blockage and wire connections Then I would replace the actuator But I would not tear down the engine as it is between the air filter and the manifold. Check the air cleaner element

Posted on Apr 28, 2013

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2002 and up Ford F350 Diesel Engine Oil in Belly pan low fuel mileage.


Ford Diesel engine blows off the intake rubber intake hoses, blue in color with 7.0 Liter. If you have a problem with this engine as stated above there is an updated hose for the intake tubes also remove the intake pipe on the turbo side of the turbo remove the 10MM bolt that holds the metal tube on to the block and remove the clamp on the turbo, remove tube. Next look at the turbo shaft inside do you see oil in the turbo? If no then grasp the turbo shaft and try moving it up or down and in and out. Any Movement The turbo needs to be rebuilt before replacing the Turbo hoses. If there is oil in the turbo then it needs to be rebuilt so stop at this time and decide what you want to do with it.
The turbo also has a flapper valve inside the turbo that goes bad at about 100,000 this is the boost waste gate and boost flapper valve, it is an internal gate unlike the mechanical ones on most turbo. If you have low power check the boost pressure with your boost gauge if you have less than 12 pounds of boost then it's time to look at the turbo. Of the Turbo I have rebuilt I have increased fuel mileage by 30 percent. If you want the details of how to gain the extra mileage post a comment to me or ask this question and I will get back to you for the procedure.

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DODGE NITRO 4 LITRE EGR LOCATION 2007


The metal tube from the intake going behind the engine is going to the EGR Valve.


http://www.allpar.com/images/engines/4-V6-2.jpg

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Minnie winnie


gas or diesel ? if its gas find shrader valve (tire valve looking thing) on injector fuel manafold top of engine tap key on/off several times depress center of valve with plastic point nothing metal (old ink pen?) look for fuel to briefly spray out a bit (shield eye's) no fuel ck fuel pump , filter and inertia switch ,yes fuel ck all the sensors the injectors are not firing
Diesel ? A 86 would be A IdI type so loosen fuel fitting(one turn) to top of # 4 injector (you can't reach others) Do not remove it (High pressure!!!) crank engine several times over look for fuel leak at fitting thats loose ,it might even start if injector pump was airlocked that happens alot from sitting ,if it does don't get your body near loose fitting(high pressure) too dangerous shut off key and tighten fitting then restart engine

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What does the vacuum pump on an 91' f350 (7.3l diesel) run?


Good question. On petrol engines there is a throttle plate that governs the amount of air entering the engine. At idle the throttle is almost completely closed and a result is the a vacuum is created in the inlet plenum. This vacuum is used to control ancillary engine related functions: opening the engine's exhaust gas recirculation (EGR) valve; operating the intake manifold runner (IMR) valve; moderating the fuel pressure regulator (FPR) function; and in governing in-gear duration (automatic transmission) and vehicle functions such as central locking, fuel cap door release and brake servo assist. OK so what has this to do with diesels? Diesels do not have throttles, engine speed is governed by fuel injection volumes. Without an air throttle the diesel engine does not have a vacuum to run the ancillary vehicular functions. Since many of the ancillary devices have already been made to operate with petrol engines it is simpler add vacuum pump to the diesel engine and use the same components to do the same jobs.

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1 Answer

1983 Blazer with 6.2L diesel. 132k I have had muffler shop check for exhaust leak and found none. The only item to be leaking anything is the CDR. It is emitting a small amount of vapor from a small...


According to Chilton's manual on page 159 under "Diesel Engine Emissions Controls" A Crankcase Depression Regulator Valve (CDRV) is used to regulate (meter) the flow of crankcase gases back into the engine to be burned. The CDRV is designed to limit vacuum in the crankcase as the gases are drawn from the valve covers through the CDRV and into the intake manifold.

Fresh air enters the engine through the combination filter, check valve, and oil fill cap. The fresh air mixes with blow-by gases and enters both valve covers. The gases pass through a filter installed on the valve covers and are drawn into the connecting tubing.
Intake manifold vacuum acts against a spring loaded diaphragm to control the flow of crankcase gases. Higher intake vacuum levels pull the diaphragm closer to the top of the the outlet tube. This reduces the amount of gases being drawn from the crankcase and decreases the vacuum level in the crankcase. As the intake vacuum decreases, the spring pushes the diaphragm away from the top of the outlet tube allowing more gases to flow to the intake manifold. NOTE: Do not allow any solvent to come in contact with the diaphragm of the CDRV because the diaphragm will fail.
It sounds like your CDR valve has been compromised. Time for a new one or at least a functioning used one.

Credit to - 82Chev @ http://www.dieselplace.com/forum/63-gm-diesel-engines/20-6-2l-diesel-engine/444625-cdr-valve-question.html

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Starting system wiring diagram for a 86 ford e550/100


Have you located your local Cummins Dealer for this. It should be no issue for them to copy/email a diagram. Good luck...

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2003 Ford Ranger 2.3 Diagram


 rough-idling engine can signal a number of positive crankcase ventilation (PCV) valve problems, such as a clogged valve or a plugged hose. But before beginning the functional checks, double check the PCV valve part number to make certain the correct valve is installed. If the correct valve is being used, continue by disconnecting the PCV valve from the valve cover, intake manifold, or hose. Start the engine and let it run at idle. If the PCV valve is not clogged, a hissing is heard as air passes through the valve. Place a finger over the end of the valve to check for vacuum.

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With the engine at idle, vacuum should be felt at the PCV valve. 

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Jan 19, 2009 | 2003 Ford Ranger Regular Cab

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