Question about 2003 Chevrolet Cavalier

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I have a 2003 cavalier the engine light has been on for quite some time. I got the light checked and it said that the #2 spark plug wasn't hitting. I had all the spark plugs changed along with the fue

Adding oil

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  • Chevrolet Master
  • 2,355 Answers

Could be a bad plug wire or coil

Posted on Dec 07, 2014

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

rylee_smith
  • 8619 Answers

SOURCE: PO420 CODE ON CHEVY S10

Hi

The code means---

Catalyst Efficiency
Below Threshold
(Bank 1)

Please make sure there is no air entering the engine behind the maf, such as a vacuum leak or leaks in ducting between the maf and the throttle body.

If that's no the case then its an issue with injectors clogging and they are not working due to "fretting". This "fretting" is electrical terminals to injectors getting oxidation on them and is fixed by unplugging them and replugging them in. The fix is to put a small dab of die-electric grease on the terminals.

I would suggest an injector service with the new GM procedure using "Top Engine Cleaner". This may be all you need but that P0420 bothers me. P0420, Catalyst System Efficiency Below Threshold, can be set by a poor connection at the PCM or a damaged wiring harness.

Please rate this soluton as FixYa if found useful.

Thanks
Rylee

Posted on Mar 01, 2009

  • 42 Answers

SOURCE: Check oil light on 96 cavalier 2.2L

2.2l cavalier engines have an oil level sensor on the front side of the pan just below the starter. make sure it plugged in before checking anything else. if you're going to change a sensor because of "low oil' light, that would be the one.

Posted on Mar 16, 2009

  • 2 Answers

SOURCE: spark plugs

The spark plugs on the cavalier are under the 2.2 ecotec panel located on the top of the engine. There are no spark plug wires to deal with. The electronic coil pack directly attaches to the plugs with rubber seats like in a spark plug end. Then you use a deep socket ratchet to get the plugs out. Use anti-seize compound when replacing the plugs.

Posted on Jun 30, 2009

michigan man
  • 3533 Answers

SOURCE: How to change spark plugs of Chevy cavalier 2002

for the most part they are in between the fuel injector the best thing for you to do is stop by your local GM dealership in the part department and they be able to print you off the pictures and diagrams you need if all fails stop by your local library and get your hands on a Haynes auto repair manual for your car Merry Christmas and Happy New Year as always wish you the best of luck Michigan Man.

Posted on Dec 21, 2009

Testimonial: "great thanks for the info. bobbotg2005"

  • 3 Answers

SOURCE: 2.2 ecotec engine. Code says random misfire. What

did you fix it? if you did what did you do? i have the same prblm thanks!

Posted on Jan 17, 2010

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1 Answer

Does the 1999 chevrolet cavalier have a timing belt or a timing chain and if it breaks do the valves hit the pistons.


The 99 cavalier 2.2 and 2.4 both use a timing chain and yes, if the chain breaks it can damage valves. If the engine still cranks over you can remove the upper coil module cover, remove a spark plug, roll the engine over and see if compression builds. If the engine does not crank over, the broken chain will prevent the engine from turning.

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Have a 2003 chevy cavalier engine check light light is on flashing . obd said #2 cilinder mis fire what would it be


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Feb 26, 2011 | 2003 Chevrolet Cavalier

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back to basics, does the engine turn over, if so check spark(in line tester works best) fuel pressure(with a guage) injector signal(noid light), then go on to compression,

May 28, 2010 | 2003 Chevrolet Cavalier

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What is the firing order for spark plug wires 1996 Chevy Cavalier


Ok Gary I sent you two figures of a 2.2L and 2.4L engine I hope to serve you. Thanks4b0b09e.jpgc5349b5.jpg

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1 Answer

Spark plugs


The spark plugs on the cavalier are under the 2.2 ecotec panel located on the top of the engine. There are no spark plug wires to deal with. The electronic coil pack directly attaches to the plugs with rubber seats like in a spark plug end. Then you use a deep socket ratchet to get the plugs out. Use anti-seize compound when replacing the plugs.

Jun 30, 2009 | 2003 Chevrolet Cavalier

1 Answer

Engine runs rough. Engine light on.


Try checking the spark plug, and the spark wires, if that doesnt clear things up then try replacing the roter under the distributor cap and check the cap for any corrosen

Mar 25, 2009 | 2003 Chevrolet Cavalier

1 Answer

No spark cylider #2 & #3


First things first, is your check engine light on and have you had the codes read off of it? The problem most likely is the module but it could be other things too. It is always better to do all the diagnosis you can before just throwing parts at it. At least pick up a manual for the car that should tell you how to diagnose different parts.

Dec 23, 2008 | 2003 Chevrolet Cavalier

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