'97 Explorer 4.0 SOHC - Hard start in cold

My '97 Explorer has developed a starting issue in cold weather. I turn the key and it starts immediately, runs for a second or two and shuts off. I have to repeat the process numerous times before it will stay running. At first, I thought the battery voltage was sagging because it is at least 8 years old. I changed the battery and there is no difference.

Any idea's?

Please respond to newsgroup only. Thanks

Reply to
Rick N Pam
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Might be the IAC valve. Do a google search and look at the articles.

Ken

Rick N Pam wrote:

Reply to
Kenneth J. Harris

Leaking intake gaskets ????

When the engine warms up they expand and start sealing better

Reply to
Ollie

It is definitely either the Idle Air Control Valve (IAC Valve) and/or the intake manifold gaskets. The IAC Valve can be replaced very easily by yourself in 10 minutes or less, but the intake manifold gasket repair/replacement needs to be taken to a proper repair shop - NOT THE FORD DEALER! I replaced the gaskets on my 97 Explorer just last week and the two year old problem you are experiencing went away instantly. Cost me 324 bucks though, so be careful.

Reply to
Freddy Cellophane

I vote for a sticking IAC valve.

I have had both situations, leaking gasket (replaced it myself - for the cost of the gasket plus a days work), but the IAC valve I fixed with a small screwdrive.

If my memory serves me right (it was a few years ago on my 1994 Eddie) there is a control rod which gums up and sticks causing exactly the symptom you describe. A bit of scratching and scraping and make the rod move free and replace.

Hope this helps. Have a go.

Reply to
Jethro

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