surging when first started
86FieroGT
05-29-2004, 01:10 PM
My '86 Fiero GT (Chevy block & Pontiac tuned 2.8L HO v6) sometimes surges when I first start it.
It will run up to 1500 or 1750rpm, then drop down to 500 or less and sound like it's going to die, then up to 2000-ish, then down and up a few times, getting closer to a normal idle each time.
It's a few seconds between cycles, and I don't seem to have any other similar problems once it cycles a few times. I have 130,000 original miles and a bad rear exhaust manifold gasket. What might be wrong? Thanks.
It will run up to 1500 or 1750rpm, then drop down to 500 or less and sound like it's going to die, then up to 2000-ish, then down and up a few times, getting closer to a normal idle each time.
It's a few seconds between cycles, and I don't seem to have any other similar problems once it cycles a few times. I have 130,000 original miles and a bad rear exhaust manifold gasket. What might be wrong? Thanks.
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