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Starts immediately when cold, not when warm
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gtojudge
New User
Feb 24, 2013, 3:26 PM
Post #1 of 2
(1143 views)
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Starts immediately when cold, not when warm
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I have a 1997 GMC Sonoma pickup
It has a 2.2L 4 cylinder
When it has sat overnight, even on the coldest days, it will start up immediately but after warming up, if it's shut off for as little as 15 minutes, it's very hard to start again, even after several hours. I thought possibly it was a fuel filter problem but replacing that did not help.
Any advice/ideas on this please and thank you.
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nickwarner
Veteran
/ Moderator
Feb 24, 2013, 5:33 PM
Post #2 of 2
(1098 views)
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Re: Starts immediately when cold, not when warm
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You need to find out what is missing while it won't start. You need to test for spark, fuel pressure and injection pulse. Are there any codes? If so what are the exact numbers?
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