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Vacuum leak?

Vacuum leak?

Postby 97Whitemare [OP] » May 10 2021, 9:06am

My '97 sierra 2500 every once in a while wen I've been driving a long time, my engine will give. It's always as I shift into reverse and it always starts up on the next try. It won't do it again for a long time. The old girl does have 330,000 miles on her but no problems other than this one. Any ideas?
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Posts: 1
Topics: 1
Joined: May 10 2021, 1:55am
Year: 1997
Make/Model: GMC Sierra
Variant: LS
Extra Info: HD 350straight pipes
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