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Please help a newbie

2831 Views 19 Replies 9 Participants Last post by  colt45
I have an'03 Escape Limited AWD, V6 , with about 85000 miles on it. I have had an intermittent starting issue, and after viewing this site changed the IAC.Tha t did not help.

Seems to only happen after it is driven then left to sit for about 6 hours. The starter cranks good and strong, but it will not fire up. When you let go of the key after cranking, you can hear a large pffffft type sound. Usually it will then start on the second or third time. Seems worse in warm weather. With winter coming, I am worried the battery will not be able to crank long enough to start.

It has been to the shop and has no codes. I have not noticed the antitheft blinking when the problem occurs. I left the it at the shop for four day, and they could not reproduce (of course).

Anybody have any ideas as to what I can try? Thanks in advance!!
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Where do you live? In a hot climate. I'm thinking that you might be getting some vapor lock going on with your gas in the fuel line/or rail. Try what foureye said. It could be the fuel pressure, but 75K isn't enough miles imo to pickle the pump.
I'd certainly think of doing the crank sensor, or any other low dollar d-i-y things before hauling it in. If you take it to a shop, they are going to want to replicate the problem, and if it's intermittent that isn't going to happen...

So, yes to the sensor, wiring connections... like the ignition switch. Sometimes the contacts get worn and need replacing. Especially if it's had a heavy set of keys hanging there and been driven over rough roads.
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