Exhaust Backfire
Thread Starter
Teching In
Joined: Sep 2021
Posts: 18
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From: Georgia
Exhaust Backfire Recently rebuilt Chevy 5.3L will start and idle on its own, but it backfires. Also noticed fuel dripping down the drivers side exhaust header. Fuel pressure is reading right around 60psi, I removed the injectors on the driver side to test them individually and they seem fine. Any ideas or suggestions for what to check and what the cause might be? Thanks.
TECH Fanatic
Joined: Jan 2009
Posts: 1,063
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From: Bostwick, GA.
" I removed the injectors on the driver side to test them individually and they seem fine".
If the injs check out, test the inj harness. It may have the ground side shorted and the inj will go on static when the key is turned on.
If the injs check out, test the inj harness. It may have the ground side shorted and the inj will go on static when the key is turned on.
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Joined: Dec 2017
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fuel dripping down the drivers side exhaust header
