Question about 2002 Dodge Grand Caravan

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Hard to start when cold but when it does start it's normal ,runs

Great when warm?

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  • catsund49 Dec 12, 2008

    Had it fixed,it had bad plugs and one injecter he thought might be leaking also.

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Hi, my name is Jeff Adkinson and I have a 2002 Dodge Grand Caravan ES 3.8L V6 FWD and here is my problem. Hard starting, it would normally take about 2 seconds to start the engine but now it takes about 4 to 6 seconds or more to start. Once it starts it runs fine and the problem only happens after sitting for 3 or more hours. Today, after sitting all night I sprayed Starter fluid into the throttle body and it started in 1 second. So I would assume I am losing fuel pressure over time. If I just turn the key to the on position and wait 10 seconds it will start within 3 or 4 seconds. The engine light is not on and I have no error codes. I do not smell gas or see any leaks. I replaced the fuel filter and the fuel pump assembly back in March of this year with an aftermarket pump. I have not tested the fuel pressure because I can't find the value. A few months ago I replace both valve cover gaskets, PCV, Plugs, wires, air filter, and when I pulled the air intake plenum off I could not find the valve for the fuel pressure gauge. Also, I pulled the fuel injectors out of the intake manifold and they looked clean but the O-ring on the bottom probably needed replacing but I didn't new ones so I left them in. But if these O-rings are leaking this would mean one or more injectors are leaking and I would assume I would have performance problems which I don't
So here are my question:
· Is it possible one or more injectors are leaking and the gas is evaporating in the manifold
· Does the 3.8L have a fuel pressure valve to test the fuel pressure? The manual says it does have a valve but it also says the 3.0L does not. It possible the manual mixed up the 3.8 with 3.0 or did I just miss the valve when I pulled the intake plenum off.
· Is it possible I have a very small leak which is not leaking fuel but bleeds off pressure over time?
· How do I test for leaks?
· Should I replace the fuel pump and filter?
· There is a check valve on the fuel rail is it possible it's leaking and so how would I test it?
· Is there a second fuel pressure regulator?
· If it was an electrical problem I would assume I would have performance problems?
Thanks for your help, Jeff

Posted on Jul 12, 2013

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Have u done a leak down test on the fuel pump pressure? u may have a defective fuel pump check valve, this creates your type of problem.

Posted on Dec 11, 2008

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