24 Valve Engine and Drivetrain Discuss the 24 Valve engine and drivetrain here. No non-drivetrain discussions please. NO HIGH PERFORMANCE DISCUSSION!

lift pump ???

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Old May 31, 2007 | 01:18 AM
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lift pump ???

I have a 2001 dodge 24 valve that is having a hard time starting it just started today and has never had this prob. before
When I try to start it it will crank and if I stop the lift pump continues to run for about 1.5 mins then it will start right up.
Does any one have any thoughts on what it could be
I am thinking a weak lift pump as I am loseing preasure
By the way I changed the fuel filter after this started today
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Old May 31, 2007 | 02:21 AM
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From: Martinez
sounds like the lift pump check the presure b4 driving it.
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Old May 31, 2007 | 06:49 AM
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Probley the LP, and could be the ball check valve on the return line on the IP letting it loose prime.
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Old May 31, 2007 | 01:41 PM
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how would I check that?
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Old May 31, 2007 | 02:06 PM
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You should install a fuel pressure gauge in the cabin to see if the LP is working. In the meantime, you can check the fuel pressure using a gauge that attaches to the schrader valve on the injection pump.
-P
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Old May 31, 2007 | 06:09 PM
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It's on the return line on the IP, just take it off and see if you can blow though it. It's the banjo bolt on the return.
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Old Jun 3, 2007 | 11:22 PM
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would the check valve be in the line or in the IP
I changed the LP this weekend but it is still doing the same thing
other than the the truck is idling alot better
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Old Jun 3, 2007 | 11:31 PM
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also I checked the codes and there are no codes
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Old Jun 4, 2007 | 06:57 PM
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could it be bad injectors? and where should I get a good quality guage

Last edited by dodge_fan; Jun 4, 2007 at 06:58 PM. Reason: addition
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