bad ending to a good race

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99bonnie
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bad ending to a good race

Post by 99bonnie »

so i juss got a tune up , plugs wires fuel filter oil change and i drove it 300km this weekend up north and when i got bak into town a cavalier wanted some of the 3.8. beat him of course but when i let off something popped and almost felt like the exhaust clogged up. At idle the car runs fine but under load it spudders heavily and feels absolutely power less. juss wondering if anyone has experienced this or has any idea thanks a lot.
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00Beast
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Re: bad ending to a good race

Post by 00Beast »

Sounds like the cat clogged.
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99bonnie
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Re: bad ending to a good race

Post by 99bonnie »

got a brand new magnaflow hi flow cat and a magnaflow muffler probably like half a year ago and the cat was 2 months ago
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Boreas
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Re: bad ending to a good race

Post by Boreas »

Id double check the spark plug wires, maybe one of them didnt snap in all the way? I had a similar situation and it turned out one of the boots was corroded.
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alec_b
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Re: bad ending to a good race

Post by alec_b »

Same thing happened to mine after a spirited run. Check your ICM. Mine was ok at idle and when it was cold but it wouldn't fire when it was warmed up.
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Pontiacdad
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Re: bad ending to a good race

Post by Pontiacdad »

Look at your vacuum lines, sounds like the one at the rear of the intake manifold came off or the one under the super charger nose.
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dirtracr95
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Re: bad ending to a good race

Post by dirtracr95 »

fuel pressure? maybe a weak pump clogged fuel filter
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99bonnie
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Re: bad ending to a good race

Post by 99bonnie »

turned out to be the vaccum line on the bak of the intake thanks a lot guys
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