Duramax wont start without using starting fluid help!
#21
#23
#28
if the check valve was goin bad, would that cause it not to start like im experiencing??
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well i replaced the fuel line going out of the filter housing with a clear one. didnt help anything and i didnt see any air bubbles going thru. but i washed the filter housing off the other day cause it looked dirty and thought maybe it was leaking. i noticed it is wet where the inlet fuel elbow goes into the housing. so it might be leaking a little. whats your guys input on that?
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well i replaced the fuel line going out of the filter housing with a clear one. didnt help anything and i didnt see any air bubbles going thru. but i washed the filter housing off the other day cause it looked dirty and thought maybe it was leaking. i noticed it is wet where the inlet fuel elbow goes into the housing. so it might be leaking a little. whats your guys input on that?
Last edited by joshpete; 06-09-2012 at 01:18 PM. Reason: Automerged Doublepost
#29
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the housing has been known to develop hairline cracks. how long does it take for the primer bulb to to go soft after priming it till hard without starting the engine?
a bad check valve will allow the fuel to drain back into the tank requiring you to prime it every time and then it may not hold a prime long enough to start. you could try and pressurize the fuel tank to about 5 psi and prime the filter then while the tank is still under pressure see if it starts. it may take a few attempts if air is in the rails.
to pressurize the tank ether get the special cap with an air fitting or put the air hose into the tank and sealed by a rag. have someone hold it in while you prime it and attempt to start the engine
a bad check valve will allow the fuel to drain back into the tank requiring you to prime it every time and then it may not hold a prime long enough to start. you could try and pressurize the fuel tank to about 5 psi and prime the filter then while the tank is still under pressure see if it starts. it may take a few attempts if air is in the rails.
to pressurize the tank ether get the special cap with an air fitting or put the air hose into the tank and sealed by a rag. have someone hold it in while you prime it and attempt to start the engine
#30
the hand primer is ALWAYS loose everytime i shut the truck off after its been running. takes about 8-10 pumps to get it firm. if you let it sit without starting it it usually starts getting loose within 1-2 minutes er so probably.
also, i did replace the two fuel lines going to the fuel filter and from the fuel filter housing with new.
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i just watched a video on youtube where a guy was experiencing the same problem as me. he had a hung injector and it wouldnt build rail pressure. he did a test to make sure. here is the video
does anybody know what he did exactly? i thinkin bout trying it
also, i did replace the two fuel lines going to the fuel filter and from the fuel filter housing with new.
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i just watched a video on youtube where a guy was experiencing the same problem as me. he had a hung injector and it wouldnt build rail pressure. he did a test to make sure. here is the video
does anybody know what he did exactly? i thinkin bout trying it
Last edited by joshpete; 06-10-2012 at 11:31 AM. Reason: Automerged Doublepost