What causes backfiring during acceleration?
#1
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What causes backfiring during acceleration?
I think its from a lean condition.
Also, would a bad ECM on an LG4 have too much of an effect?
And, whats that ticking noise i always hear under acceleration?
Thanks
Also, would a bad ECM on an LG4 have too much of an effect?
And, whats that ticking noise i always hear under acceleration?
Thanks
#2
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Car: yep
Engine: uhuh
Transmission: sure does
Is it a steady pop pop pop pop pop
ONLY when on the throttle.
Or is it just a pop and then its OK.??
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ASE Mechanic/Machinist/Smog Tech
RTKTGTR 1999 NBM T/A, flowmaster,FRA,Pro Kit,BMR STB, polished calipers.
1986 Chevy 3/4 ton pick up,flowmasters,4.10s,
1981 corvette FOR SALE
1995 ZX6R,Yosh,D207s
GO #3
ONLY when on the throttle.
Or is it just a pop and then its OK.??
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ASE Mechanic/Machinist/Smog Tech
RTKTGTR 1999 NBM T/A, flowmaster,FRA,Pro Kit,BMR STB, polished calipers.
1986 Chevy 3/4 ton pick up,flowmasters,4.10s,
1981 corvette FOR SALE
1995 ZX6R,Yosh,D207s
GO #3
#3
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Its just an occasional pop.
Only when under load also. No popping just reving. I got it to stop a little bumping up the timing.
Yeah theres a ticking in the valve train area, and someone else suggested a valve spring.
Thanks
Only when under load also. No popping just reving. I got it to stop a little bumping up the timing.
Yeah theres a ticking in the valve train area, and someone else suggested a valve spring.
Thanks
#4
My car does that when I apply throttle at less than 2000 rpms and it gets worse as it heats up. It becomes unbearable after a half hour or more of driving. What are all the causes to check in order to fix this? thanks
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305TBI FireBird, Holley Intake and TBI, Headers, Torquer Heads, Gears. Best E.T. 15.08 at 92.5, 0-60 6.45.(Before Heads)
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305TBI FireBird, Holley Intake and TBI, Headers, Torquer Heads, Gears. Best E.T. 15.08 at 92.5, 0-60 6.45.(Before Heads)
#6
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No one stays up in the wee-hours of the night waiting to help their fellow third-genner?
Whats wrong with you people?
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86 Sports Coupe/red paint faded to pink with white lines from rubbing compound.
Next project - spray can investment.
LG4. T5 soon(maybe)....yeah thats it.
Whats wrong with you people?
------------------
86 Sports Coupe/red paint faded to pink with white lines from rubbing compound.
Next project - spray can investment.
LG4. T5 soon(maybe)....yeah thats it.
#7
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My previous Camaro ('85 MPFI V6) use to do the pop when I floored it. As it began to run worse I took it in for a tune up. The mechanic figured I had water in my fuel tank, threw in a bottle of water-b-gone and a new fuel filter and it ran great after with no pops. It could be that simple! Later, Teddy Z '84Z28
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