Question about 2002 Chevrolet Silverado 1500

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My 5.3 02 silverado has low compression and is miss firing

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Any engine that has low compression indicates worn internal parts. $$$$ The usual suspects are worn piston rings. Have you checked all 8 cylinders? If so, are they all losing compression, or just certain cylinders? If you have access to a garage, do a compression check on all 8, you may also want to get a cylinder leakdown test, again, on all 8 cylinders. You can then decide what course of action would be best. Good Luch!

Posted on Jul 06, 2010

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1 Answer

Can a low compression PSI on one cylinder cause the computer to indicate "miss fire" on that cylinder?


How low is low? Low compression is really vague as a diagnostic method. The issue could be leaking valves, head gasket, or rings. Yes if it is losing a lot of compression then there is no fuel to ignite and it would be a misfire.

Jul 13, 2015 | GMC Envoy Cars & Trucks

1 Answer

Feels like miss firing at higher speeds


Your caption says misfires at high, then you say low? You have a 95. Lots of miles I assume. So there are several things that would cause misfires at high and low. First is timing chain/belt, sloppy. Second, would be the valves and rings. Valves worn or bent, not seating right. rings just worn out, not holding compression. Do a compression test and see. Low speed or idle misfires can be from vacuum leaks. check hoses. Low and high rpm misfires can be from ignition problems. Wiring, coil/s, ignition modules.

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1 Answer

I have a 02 Saturn SL 1.9 SOHC I have changed 1 coil pack & spark plugs but it still misses bad & check engine light flashes


check compression ..a difference of 15 lbs compression from cyl to cyl will cause in balance. if ok check crank sensor, supplies signal for coil to fire

Nov 03, 2013 | Cars & Trucks

1 Answer

Number 3 and 4 are not firing from coil on 2002 subaru outback 2.5


its faulty coil.

Get the compression test done on each coil.these will let you know if its faulty coil or not.

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It can be issue with spark plugs or faulty spark plugs. Also get the compression test done for cylinders. If any of cylinder shows low compression then required, then that particular cylinder will cause misfire.

Also get obd codes scanned, the error code will let you know which cylinder is misfiring or all cylinders are misfiring.

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For your trouble shooting I suggest you to refer the help oinks below. It has step by step details for many engine misfire issues.

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Click the link below:-----


Ford Explorer Cylinder Misfire?

http://whoisbyme.blogspot.in/2012/06/ford-explorer-cylinder-misfire.html

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Engine Misfire codes on Chevrolet Malibu?

http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html

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Cylinder 6 Misfire?

http://howtobyme.blogspot.com/2011/12/cylinder-6-misfire.html

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Misfire on cylinder 4?

http://schematicsdiagram.blogspot.com/2011/12/misfire-on-cylinder-4.html

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While stop engine idles like cylinder missing?

http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html

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Ford Explorer 5.0L: Engine Miss?

http://whoisbyme.blogspot.in/2012/06/ford-explorer-50l-engine-miss.html

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Oil on spark plugs and car misfires?

http://technoanswers.blogspot.in/2012/02/oil-on-spark-plugs-and-car-misfires.html

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Can cylinder misfire Damage the Catalytic converter?

http://schematicsdiagram.blogspot.in/2012/02/can-cylinder-misfire-damage-catalytic.html

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Car misfires and error code P0306 and P0303 is shown?

http://technoanswers.blogspot.com/2012/01/car-misfires-and-error-code-p0306-and.html

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Chevrolet K1500 No spark, random misfire

http://repairhelpcenter.blogspot.com/2012/11/chevrolet-k1500-no-sparkrandom-misfire.html

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2004 Ford F150: Engine Misfire and Lean Code?

http://whatisbyme.blogspot.in/2012/05/2004-ford-f150-engine-misfire-and-lean.html

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1995 Toyota LS: Misfire at idle or low RPM

http://whatisbyme.blogspot.in/2012/04/1995-toyota-ls-misfire-at-idle-or-low.html

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Toyota Corolla: Random Misfire?

http://technoanswers.blogspot.in/2012/04/toyota-corolla-random-misfire.html

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2006 Ford Freestar: Misfire on Cylinder Number 2?

http://whatisbyme.blogspot.in/2012/06/2006-ford-freestar-misfire-on-cylinder.html

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This will help.

Thanks.

Nov 28, 2012 | Cars & Trucks

1 Answer

Miss in 1999 silverado 2500 6 liter


It sounds like you may have a small block in your fuel system. When was the last time you changed your fuel filter out?

Nov 12, 2011 | 1999 Chevrolet Silverado 2500

2 Answers

Check engine light is on, they say multiple miss fire in cylcinder 6. but no one can find the problem van runs great


first do a cylinder compression test on engine to verify good engine compression this should be around 110psi to 175 psi check for vacuum leak, intake port for #6 cylindermay be leaking air, or also check coil for that cylinder, if wire and spark plug have already been changed, last replace fuel injector for that cylinder.

Jan 24, 2011 | 1996 Dodge Caravan

1 Answer

Cylinder 1 idles rough and low compression


any cylinder will run or miss fire if the compression is low there are a few reasons what can cause low compression they are a burned or bunt valve, bad rings, a cracked cylinder wall or intake/exhaust seats a burned piston or a bad head gasket a leak down test will be more specif on witch you one of the following u have.

Dec 16, 2010 | Jeep Cherokee Cars & Trucks

1 Answer

I have a miss fire in cylinder 7 i have coil packs and i drive an 2001 chevy silverado 4x4 and i just replaced the plugs and wires


did you replace the coil packs then? if not maybe try doing a compression test. what did the plug look like when you took it out of # 7? are you loosing coolant?

Oct 09, 2009 | 2001 Chevrolet Silverado 1500

2 Answers

I have 02 L300 3.0 with cylinder1 miss fire.I


Swap the coil pack to another cylinder if it is individual. If not, you should be able to pull the wire away from the plug and hear it fire. If not, you have a bad coil. If so, I would look at doing a compression test and possibly a leak down test.

Jun 10, 2009 | 2002 Saturn L-Series

1 Answer

2002 silverado miss fire


have you checked the oxygen sensor on that side commonly on cheverolet the O2 sensor will read wrong and over fuel or under fuel an entire bank

Mar 08, 2009 | 2002 Chevrolet Silverado 1500

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