Injector regulator on a LB7
#21
#22
buy the way it looks you will have to pull the banjo bolt out and find a way to block the hole in the fitting(the t). I would say like a 3/8 bolt two washers and a nut and make a gasket out of like a piece of cardboard from the back of a noetbook to go between the washers and the fitting. Then put a piece of hose over the fprv like I said before, the hose will have to be pretty big like a 5/8 heater hose. that is what it looks like to me but if anyone else has a better idea giver a whirl
#23
#24
Okay while I was gone out in the garage working on this thang, You guys were trying to help me out. THANKS!!!! Now what I just did was I looked at that link on post 9 and went out to the truck and I found it. I pulled it off and shimmed it. Used 3 washers and put it back together and guess what?.?.?.?. IT STILL IS NOT BUILDING PRESSURE!!! Is there anything else it could be other than the PUMP?
Last edited by kdxkent; 03-21-2010 at 04:21 PM.
#27
besides it being injectors it would be the pump being bad.
there could be a small chance of it leaking out under the injector lines that go in the valve covers, but you would also get diesel fuel in the oil as well. there is a test that can be done to see if that is happening is to jack up the rail pressure at idle and let it sit for 5 minutes and see if the oil has risen.
but other than that its pointing to the pump.
there could be a small chance of it leaking out under the injector lines that go in the valve covers, but you would also get diesel fuel in the oil as well. there is a test that can be done to see if that is happening is to jack up the rail pressure at idle and let it sit for 5 minutes and see if the oil has risen.
but other than that its pointing to the pump.
#29
The only time this low pressure happens is when the desired goes above 14k to 15k and above...at that very time the actual drops to 3k or 4k psi and even sometimes gives a low pressure in fuel rail code. I dont remember the code number.
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Well you have been with me from the start of this and I thank you for you help. You know everything I have tested and how...all the results and symptoms, you dont think I have missed anything do you? It just seems so odd that when to builds the 15k and then just drops off to 3k all at once.?.?.?
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Oh and I just changed the oil and there is no fuel in the oil. 6 months ago dealer installed all 8 injectors.
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Also just to let you know alittle more about this, it runs great as long as you dont get into the throttle like 1/2 peddle or more. That is about where the tech II shows the desired going over the 15K psi and higher.
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besides it being injectors it would be the pump being bad.
there could be a small chance of it leaking out under the injector lines that go in the valve covers, but you would also get diesel fuel in the oil as well. there is a test that can be done to see if that is happening is to jack up the rail pressure at idle and let it sit for 5 minutes and see if the oil has risen.
but other than that its pointing to the pump.
there could be a small chance of it leaking out under the injector lines that go in the valve covers, but you would also get diesel fuel in the oil as well. there is a test that can be done to see if that is happening is to jack up the rail pressure at idle and let it sit for 5 minutes and see if the oil has risen.
but other than that its pointing to the pump.
---AutoMerged DoublePost---
besides it being injectors it would be the pump being bad.
there could be a small chance of it leaking out under the injector lines that go in the valve covers, but you would also get diesel fuel in the oil as well. there is a test that can be done to see if that is happening is to jack up the rail pressure at idle and let it sit for 5 minutes and see if the oil has risen.
but other than that its pointing to the pump.
there could be a small chance of it leaking out under the injector lines that go in the valve covers, but you would also get diesel fuel in the oil as well. there is a test that can be done to see if that is happening is to jack up the rail pressure at idle and let it sit for 5 minutes and see if the oil has risen.
but other than that its pointing to the pump.
---AutoMerged DoublePost---
Also just to let you know alittle more about this, it runs great as long as you dont get into the throttle like 1/2 peddle or more. That is about where the tech II shows the desired going over the 15K psi and higher.
Last edited by kdxkent; 03-21-2010 at 05:09 PM. Reason: Automerged Doublepost
#30