Discussion:
1997 Chevy Cavalier fuel leak and P0300
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j***@gmail.com
2017-06-15 22:22:53 UTC
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Hello,
My 1997 Chevy Cavalier with a 2.2 L has a very significant leak from the vapor canister vent valve, just above the vapor canister in front of the front passenger wheel well. It also has been giving me a P0300 code, multiple misfire. It runs terribly, and it seems to be getting worse. Are these 2 conditions related, and if so, what would be the most likely fix? I replaced the fuel pump 6 months ago, and then the theft system light came on, so it sat for the last 6 months. I finally took it to a dealership a week and a half ago, and they replaced the ignition switch. Any help would be appreciated. Thanks.
Ed Pawlowski
2017-06-17 16:37:21 UTC
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Post by j***@gmail.com
Hello,
My 1997 Chevy Cavalier with a 2.2 L has a very significant leak from the vapor canister vent valve, just above the vapor canister in front of the front passenger wheel well. It also has been giving me a P0300 code, multiple misfire. It runs terribly, and it seems to be getting worse. Are these 2 conditions related, and if so, what would be the most likely fix? I replaced the fuel pump 6 months ago, and then the theft system light came on, so it sat for the last 6 months. I finally took it to a dealership a week and a half ago, and they replaced the ignition switch. Any help would be appreciated. Thanks.
My honest opinion, give it up and buy a new vehicle. Cost of repairs on
a 20 year old car will probably be much higher than the value of the car.

Replacing the canister can be problematic if rust is part of the
problem. Do you have emission testing to pass?
j***@gmail.com
2017-06-21 23:55:34 UTC
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If I had the money to buy a new vehicle, I would. The state I live in doesn't require emissions testing. I finally broke down and put it in the shop, and the guy said that I most likely switched two of the lines when I replaced the fuel pump. I find that kinda hard to believe, since I was very sure that I put it back together in the same configuration that it was originally, but we'll see what he says. I'll update this thread when I find something out.
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