Question about 1981 Ford F 100

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Back fire thru carburator - 1981 Ford F 100

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Timing is off

Posted on Nov 10, 2010


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92 manual

Older carburators tend to gum up after years of service. Get yourself a can of carburator cleaner, and spray out real good all the crevices. And then start engine and do the same. Be careful, cars will rev up during application. You can buy a 92 Manual by going to an Auto Parts Store and order a "HANES" manual for your Make & Model. Around $15.00 or call Hanes and order it thru them.

May 10, 2014 | 1992 Mitsubishi Galant

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Escort back fires from carburator

Carburators are not on vehicles after 1988 or
fuel injected ones !!

Do you not have a repair shop you have work on your
vehicle problems?

Apr 21, 2014 | 1991 Ford Tempo 4 Door

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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

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Oct 10, 2012 | Cars & Trucks

1 Answer

On my 89 Pathfinder,I changed my fuel filter an it turns over but still won't start. can i spay the carburator w/ carburator cleaner. will that help

If you smell fuel in your carburator I would check to see if you are getting spark to the plugs.

You can take starter fluid and spray into carburator and see if motor fires, if it does you may have a fuel pump problem.
Hope this helps you!

Mar 05, 2011 | 1989 Nissan Pathfinder

1 Answer

I have a 1986 f 250 that has a 351 windsor but has a 255 firing order . how does the firing order go ?

1-3-7-2-6-5-4-8 1 thru 4 front to back on the left as you face the motor, 5 thru 8 on the right...

Dec 08, 2010 | 1986 Ford F 250

1 Answer


You may have a bent pushrod or problems in the valvetrain, bent or burnt valves. May also want to check the cap and rotor. Normally a backfire thru the carburator can be associated with a mis-fire. How this gives you somewhere to start.

Mar 08, 2010 | 1982 Ford F 150

1 Answer


Pls Check Your Carburator Settings & Ignition Timing Settings.

Jun 11, 2009 | 1995 Pontiac Bonneville

1 Answer

Stalls upon acceleration and back fires during engine speed.

check your fuel presher . mazda have a high fuel presher,

Apr 20, 2009 | Mazda B2200 Cars & Trucks

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