Takes a long time to crank before it starts - JeepForum.com
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post #1 of 5 Old 11-09-2009, 06:14 PM Thread Starter
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Takes a long time to crank before it starts

I have a 1995 4.0 auto that has had a complete tune up plugs cap rotor wires distributer filters. It takes about 20 seconds of cranking before it starts. It got to be fuel related . It losses fuel pressure in the lines after 10 minutes of not running. I replaced the pump no change.

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post #2 of 5 Old 11-09-2009, 09:23 PM
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I'm pretty sure its an o ring in your fuel pressure regulator. You can just turn your key over a few times before you start or buy the whole assembly its not cheap. Or you could do the swampy bypass conversion. Hope this helps.
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post #3 of 5 Old 11-09-2009, 09:32 PM
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Did you replace the pump with a new one or a remanufactured one? I've seen some techs go through a few remans before they got a good one that actually worked. You could have a fuel injector sticking open, but that should also cause a misfire. Have you checked your fuel lines for an actual fuel leak? It's not common. but it could happen.
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post #4 of 5 Old 11-09-2009, 09:37 PM
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Check your battery connections and make sure they are not corroded. My buddy has battery terminals that are soooo bad I have to clean them once a month for him. It will start wicked for 2 weeks then go downhill until I clean them again.
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post #5 of 5 Old 11-09-2009, 09:44 PM Thread Starter
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thanks guys Ill check the battery connections. the fuel pump was a new one. No fuel leaks I already checked that. whats a swamppy bypass?
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