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90 GMC 350 rough idle solutionPosted by Rick from Paso on January 21, 2004 at 21:29:08 from (63.202.152.113):
John McPherson gets the prize! Timing chain was stretched had about 5/8" play. I guess after 333,000 miles she needed a new chain. I replaced it with a cloyes true roller chain and cam button with needle bearing. She idles and runs like a top. Thanks for all of your help!
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