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Post by hillbilyfire14 on Mar 25, 2004 2:41:35 GMT -5
After I have been running my truck and i turn it off, about 3 seconds later it backfires once, very loud.
Curious, I turned it on then off again, it backfired only once again.
Could this be the o2 sensor? It is also having trouble passing smog.
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Post by iluvdrt on Mar 28, 2004 23:29:21 GMT -5
i would guess the timing. as thats really the only thing that will make a back fire. it could have jumped time. how long has it been since you changed the timing belt. also, does it ever diesel insted of back fireing?
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Post by iluvdrt on Mar 28, 2004 23:34:11 GMT -5
one more question is it fuel injected or carburated.
in a carbed engine a backfire can also be caused by a rich condition, but more than likely its the timing.
a leak in the exhaust may also cause this but it is less likely.
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Post by hillbilyfire14 on Mar 29, 2004 1:45:52 GMT -5
It is a carburated engine. I have never changed the timing belt. I just bought it a couple of weeks ago. It never diesels, just backfires once, after the engine is shut off.
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Post by Mike Kelly on Mar 29, 2004 9:03:11 GMT -5
I know it is off subject, and no real help to you, but I used to have this '74 VW Beetle that I could make backfire by applying a little backpressure. Thing is, it wouldn't just backfire and be loud, it would actually flame out of the exhaust. Let me tell you, when I had someone riding my ass at night, I'd just let off the gas, let the pressure build, and BOOM - light up the ass end of my bug and they would back off real quick.
Ahhh.... good times.
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Post by iluvdrt on Mar 29, 2004 23:01:06 GMT -5
LOL, that is funny mike.
BOT, i would guess the timing needs adjusted. also how long has it been since it had a tune up?
i would give her a good tune up, and check the timing. should fix her up.
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