Question about 2003 Chevrolet Silverado 1500

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My 03 siverado 4.3 is stalling and backfiring

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This is the ill effects of a bad ignition module.

Posted on Nov 25, 2013

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What causes my 1965 4 speed mustang to backfire and sometimes stall?


backfiring is ignition of the fuel mixture while an inlet valve is still open. Check firing order as there may be a HT lead crossed . If it backfires then the mixture is burnt in the inlet manifold so there is nothing left for the cylinders so it will stall. If you are running holley carby then check the power valve for a hole in the diaphram Check for vacuum leaks. check ignition timing is correct and not too far advanced. if the HT leads are touching each other this will induce a spark in the wrong cylinder --use lead spacers from an auto spares shop

Dec 25, 2014 | 1965 Ford Mustang

1 Answer

What causes my 1988 siverado to stall at stop signs


Is the check engine light on ? Have you checked the idle air control valve ?

Jul 28, 2014 | 1988 Chevrolet Silverado 2500

1 Answer

2002 neon revs up to 4000rpms at start and idles up an ddown 1500rpms-2000rpms after. and begins to backfire near engine .


Engine system needs inspection on case of backfire:-----


Check out related help links to troubleshoot the vehicle backfire issues:-----

Feels like backfire from engine when decelerating?

http://schematicsdiagram.blogspot.in/2012/02/feels-like-backfire-from-engine-when.html


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Jeep Backfires?

http://technoanswers.blogspot.in/2012/02/jeep-backfires.html


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Nissan Pathfinder stalls and bucks on Acceleration?

http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-stalls-and-bucks-on.html

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Nissan Pathfinder Backfires?

http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-backfires.html
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These will help.
Thanks.

Nov 28, 2012 | 1995 Honda Accord

2 Answers

On my 1999 chevy siverado 5.3 vortex engine on acceleration backfires at about 3000 rpm. Engine ides rough when heater controls or air condition is on.


Sounds like you have a bad spark plug or wire.It may even be a bad injector .
Symptoms of lack of power under load

Sep 06, 2010 | 1999 Chevrolet Silverado 1500

1 Answer

I have a 5.7 vortec motor in a 1996 z71 siverado..it idles fine but when i give it gas it cuts out and sputters did it in the past but went away..now i think its here to stay..when i first start it it...


If you have that spider fuel system, that system is noted for problems. I'd use a gage and check proper fuel pressure. Also, the poppet valves can stick.

Feb 12, 2018 | 1996 Chevrolet K1500

2 Answers

2500 hd duramax crew cab 4 WD pulls right. Both


First try rotating the tires to the rear. Does it go away? If you apply the brakes does it pull to the left? Could be a draging caliper or the slides may be hanging up.

Aug 03, 2009 | 2004 Chevrolet Silverado 2500HD

2 Answers

Oil pressure gauge in 2003 Chev. Siverado


Most likely cause is a faulty oil pressure sending unit.

May 08, 2009 | 2004 Chevrolet Silverado 1500 Crew Cab

3 Answers

My 1987 nissan sentra stalls after warm -up?


1987 Nissan Sentra 1987 Stalls when warmed up and driven.

Jul 22, 2008 | 1994 Nissan Sentra 4-Door

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