I HAVE A CHECK ENGINE LIGHT P0300 RANDOM ...

2001 Oldsmobile Aurora

Tiny

AKOG

November, 12, 2012 AT 9:15 AM

I have a check engine light P0300 (random cylinder misfire) that I cannot figure out the problem. It runs and drives fine, but it dies randomly usually when I'm at a stop light. (This only happens usually 1 in every 20 times I drive the car). My mechanic friend cannot figure out the problem. He says it could be a bunch of things, injectors, coils, plugs. Etc. I don't want to dump a bunch of money trying to figure out the problem by fixing all these things, I'd rather figure out the one thing that is actually is causing my problem. Ideas? Please help. Thanks!

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3 Answers

Tiny

rasmataz

November, 12, 2012 AT 9:17 AM

P0300 Random Misfires are normally caused by vacuum leak and contaminated fuel-

Tiny

AKOG

November, 12, 2012 AT 10:47 PM

I did run some chevron techron into a couple tanks already so I don't think it could be the fuel. How do you fix a vacuum leak?

Tiny

rasmataz

November, 12, 2012 AT 11:21 PM

Check the vacuum hoses and also on the base of the intake manifold for an hissing noise

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