Question about 1996 GMC Yukon
Turns over fine, but won't start after it sits for a day or two. I can put a charger on it and seems to start after a few tries. took it to auto zone and had them check the battery and they said it was ok. changed fuel filter but that did'nt solve anything. I used to be able to turn key and would start right up. once it starts it runs good until it sits for a day. any solutions? also have a vacume hose missing at regulater
I had a similar problem caused by humidity and a short in the distributor cap so replaced the distributor cap and rotor. Problem solved. Don't buy discount branded parts or you will have the same problem again in a few weeks. Really cheap price equals really cheap parts that will fail early.
Posted on Nov 11, 2008
I agree with checking the cap and rotor, if this is a 1996 5.0 or 5.7 this could be the cause. I found with some of these vehicles they were worse when garaged. especially in damp locations. Easiest way to tell is when it doesnt start right away pull a wire and check for spark. Check for spark from coil and leaving one of terminals leaving the cap. If this is not the problem you may try a leak down test, and check fuel pressure. Some of these years had what was called a pop up valve in the plenum and if the fuel pressure was to low or bled off, this would give you a hard start. Is the check engine light on? if it is do you have a way to retrieve the codes? scanner? Hope this helps
Posted on Nov 20, 2012
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Posted on Jan 02, 2017
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