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Delay in start up

4357 Views 3 Replies 3 Participants Last post by  crazycalvin
My 2005 Durango 5.7 had always started instantly as I turned the ignition. When it went over 40,000 miles, it would take at least two turns of the ignition key before starting. Also, (sometimes, but not always) there is a slight engine hesitation at idle that lasts for only a couple of seconds. Engine runs great at all other rpms. Took it to Dodge. They did a diagnostic and said my fuel pump wasn't making enough pressure. Hence, I needed to install a new one. I find it hard to believe the fuel pump went bad after only 40,000 miles. My Durango runs great while accelerating and at WOT. If my pump wasn't producing enough pressure, wouldn't the engine cut out during high demand acceleration? Any ideas anyone?
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That's a new one on me. I'd start with the simple and less expensive stuff like spark plugs and a basic tune up.
Delay in start up fixed

I installed a new fuel pump and solved the problem. Engine starts on first turn of key. I had a 1988 GMC 3/4 ton and the fuel pump didn't go out until 130,000 miles. 40,000 miles for a fuel pump is horrible!
I am trying to solve the same issue on my Durango; 5.7 Hemi with 129,000 miles on it. I am the original owner. I have tried new spark plugs, fuel pump relay, and a new fuel pump. Still have the same problem. I have just tonight removed and cleaned the throttle body. Started good and the throttle response feels smoother. I will post my results in another post.
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