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Driving~ Me Nuts

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Old 10-16-2017, 07:15 PM
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Join Date: Mar 2013
Location: pa
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Car: 88z28 iroc
Engine: 5.7
Transmission: auto
Driving~ Me Nuts

Hey, This is a good one. Driving my 88 iroc TPI down a slight grade ( at about 45 50 mph) the rpm drops about 200 500. Just for a sec.or two then back up
to where it should be. Like engine braking.some times it will hold there even longer,If I tap the gas paddle it will go back up......?Any help will be great
Its really driving me nuts...............thanks




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