93 GMC Jimmy Having Trouble Starting; Idling Rough?

omigawdbananas

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I just bought a 1994 GMC Jimmy with around 157,000 miles. The Jimmy has new spark plugs and a tune up, and I just put in a fresh quart of oil.

Sometimes after sitting a little while, the engine has a little trouble starting. Once it starts it runs fine, but idles a little rough.

Any ideas on what might be causing this?
 


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