Question about 1989 Chevrolet Cavalier

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Backfiring to the carburator - 1989 Chevrolet Cavalier

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Intake valve burn or timing belt too much end play
to check timing belt.... place cylinder 1 end of compression timing mark to 0 and rotor should pin point the cylinder 1

Posted on Oct 19, 2013


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It was running great and started backfiring through the intake. Just had a valve job with new valves, valve guides, springs and a new rocker arm assembly. New point, rotor, distributor cap, and wires.

recheck the valve clearance when the engine is hot if it is hydraulic operated then thee will be an auto adjustment but it should be around .010 " when stationary and hot

Jul 01, 2015 | Cars & Trucks

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How to fix a backfiring on a 1983 Chrysler 5th avenue edition new Yorker

If it is backfiring, it is likely that the timing belt slipped a notch and needs to be replaced. Backfiring can cause MAJOR DAMAGE to that old engine so please don't drive it if it's backfiring!

May 12, 2015 | Chrysler Cars & Trucks

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Backfiring and decleration on my 2005 buick rendezvous

Do you have a SES (Service Engine Soon) light on? Why did you replace the regulator? What were the fuel pressures before and after the replacement? Did you accidentally disconnect a sensor wire or vacuum hose during the repair?

Apr 07, 2014 | Buick Rendezvous Cars & Trucks

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Backfiring thru carburator

no country stated,
there are no stock uSA 91s with any form of carb.
my guess? wild, with no eye on and no photos
is its a TBI car, throttle body injection system. EFI.
i have one too. a USA 91 tracker. 2door 5speed.

the engine if still stock, is TBI
and will back fire , 99% of the time
when the 60k mile service was skipped, you did, right?
the 60k has a full egnition tune up, and new timing belt
the belt now is slipped,
this does 3 things (at least)
1: low compression not 150PSI WOT but 100 now.
2:cam timing is now way off causing #1 ,
3: Dizzy timing is way off now, a 1 minute test with the strobe light.
and bingo, gee i never to tuneup and the belt is gone.

skipping this 60k dooms all trackers to this fate. all.
if all that is good,
backfiring can happen , just with a lean mixture.
but the Tracker , just bogs with lean, it is , its nature.

back firing to me , is up , passing thru the TBI to the air cleaner
out the end of tail pipe
or pure muffler explosions, (NSA will read this line)
the FINDER is here. (whos on first? whats my engine)

Sep 27, 2013 | 1991 Geo Tracker

1 Answer

Hello there,when i starts z car in z morning,blue smoke comes out.Is that normal please.And z car miss fires if i accelerate suddenly.I have changed z distributor,spark plugs n wires.Z car is of carburator...

The blue smoke is OIL, coming from bad seals in the valves. It drains into the cylinders overnight and when you start the car it burns the oil off. This is probably fouling your plugs and if backfiring will fould the carburator. The miss firing is due to the age and most likely the timing of your engine, along with fouled plugs and carb.

Mar 08, 2011 | Honda Accord Cars & Trucks

1 Answer

Hello when i crank my truck up it will sputter then while i'm driving at speeds of 20 to 35 mph it starts to backfire with a little lose of power. after i've put 3 different carbs , figuring that was the...

Backfiring is a timing problem. It happens when one of the cylinders fires while one of the valves is still open. Your timing should advance as the rpm's increase. Carburated vehicle have what's called vaccum advance and if that vaccum advance line is disconnected it will cause what you describe. There should be a vaccum line that connects from the carb to the distributor that controls your vaccum advance. The sputtering at idle is also probably a symptom of a disconnected vaccum line.

Dec 29, 2010 | Chevrolet Silverado Cars & Trucks

1 Answer

Think that our automatic choke went out.Ran rough and was backfiring before it got warmde up.

the car is fuel injection so there is no choke for it has no carburetor.Backfiring is usually the cause by worn timing parts such as the belt. If the backfiring occurts only upon when it first starts up the mass air flow sensor is probably the cause instead

Mar 13, 2010 | 2000 Ford Focus

1 Answer

92 cadillac white smoke coming from carbuerator .....

white smoke is water, I would drain the tank and start fresh

Jul 09, 2009 | 1992 Cadillac DeVille

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