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s-10 backfireing


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roakes1
New User

Jun 13, 2010, 6:57 PM

Post #1 of 4 (1276 views)
s-10 backfireing Sign In

1999 chevy S-10 4.3 vortec. Idels fine, but when put in gear it begines to backfire, gonna check timeing in morning. but not sure to go from there.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jun 13, 2010, 6:59 PM

Post #2 of 4 (1274 views)
Re: s-10 backfireing Sign In

The timing is not adjustable. Do not turn the distributor.
Is the check engine light coming on?



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



dmac0923
Enthusiast

Jun 13, 2010, 9:42 PM

Post #3 of 4 (1267 views)
Re: s-10 backfireing Sign In

you prob have a lean condition in your engine that is enhanced by the load placed on the engine when placing the trans in gear.

check vacuum lines for cracks or breaks. then look at intake gaskets for a leak causing a lean condition
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helmstetler
Novice

Dec 14, 2010, 8:00 AM

Post #4 of 4 (1180 views)
Re: s-10 backfireing Sign In

Did you ever solve the problem? If you did, what was it. Let me know at jamsiewin@yahoo.com. Thanks.






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