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2004 cavalier wont start

I have a 2004 cavalier that has the 2.2l ecotech engine. The other day it was running fine then I decided to do a front brake job. After the job was done the car suddenly wouldnt start, just like if it wasnt getting a spark or gas. I cannot ground the spark plug and test for a spark becauuse it uses plug boots not wires. The fuel pump is turning on and running fine. The only code that is coming up is a misfire in cylinder 2, and that has been coming up for weeks probably due to a bent spark plug point. does anyone know of anything I can do to diagnose the problem? Thanks for the help!

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  • Cars & Trucks Master
  • 4,133 Answers

If your plug boots come off with ignition coil housing, remove it, then use spark tester in plug boot. Crank the engine and watch for spark. You would probably want to pull fuel injector fuse, no need to spray gas.

Then use a gage and check proper fuel pressure. Some vehicles don't have a Schrader valve, so you need proper fittings to tee into supply line, in order to use pressure gage. Don't take any fuel lines loose unless your sure, no pressure on the system.
I can only help with testing.

Posted on Apr 20, 2017

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 217 Answers

SOURCE: 1998 Cavalier No Spark in cylinders 1 & 4

ignition mod. grounds,pcm or timing belt could all be it but, I would have to look at timing first.

Posted on Jan 17, 2009

  • 1 Answer

SOURCE: I am getting a misfire

Here is a copy of the "Policy Adjustment" that I took to the dealer with me this morning. Hope this helps any of you.

----------
Subject: Special Policy Adjustment - Catalytic Converter #05551 -(09/14/2005)
Models: 2001-02 CHEVROLET IMPALA, MONTE CARLO
2001-02 PONTIAC GRAND PRIX
2001-02 BUICK REGAL
EQUIPPED WITH 3.4L (RPO LA1 - VIN E) OR 3.8L (RPO L36 - VIN K) V6 ENGINE
----------
Condition
Some customers of 2001-02 Chevrolet Impala, Monte Carlo; Pontiac Grand Prix; and Buick Regal model vehicles, equipped with a 3.4L (RPO LA1 - VIN E) or 3.8L (RPO L36 - VIN K) V6 engine, may experience a condition where the vehicle exhaust catalytic converter is replaced due to complaints of lack of power or illumination of the Malfunction Indicator Lamp (MIL). This may be due to the front endcone insulation from the catalytic converter breaking away and blocking the front of the first catalyst brick and preventing the free flow of exhaust gas through the converter.
Special Policy Adjustment
This special policy covers the condition described above for a period of 10 years or 120,000 miles (190,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. The repairs will be made at no charge to the customer.
For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after September 15, 2005 are covered by this special policy and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to September 15, 2005 must be submitted to the Service Contract provider.
Vehicles Involved
Involved are all 2001-02 Chevrolet Impala, Monte Carlo; Pontiac Grand Prix; Buick Regal model vehicles, equipped with a 3.4L (RPO LA1 - VIN E) or 3.8L (RPO L36 - VIN K) V6 engine and built within the following VIN breakpoints:
Year
Division
Model
From
Through
2201
Chevrolet
Impala
19100001
19378250
2001
Chevrolet
Monte Carlo
19100001
19378233
2001
Pontiac
Grand Prix
1F100004
1F275188
2001
Buick
Regal
11100004
11338085
2002
Chevrolet
Impala
29100001
29374833
2002
Chevrolet
Monte Carlo
29100016
29374832
2002
Pontiac
Grand Prix
2F100019
2F276927
2002
Buick
Regal
21100001
21288762
Parts Information
Parts required to complete this special policy are to be obtained from General Motors Service Parts Operations (GMSPO).
Part Number
Description
Qty/ Vehicle
10343187
Converter, Catalytic (L36 engine)
1
10343185
Converter, Catalytic (LA1 engine)
1
10328740
Gasket, Catalytic Converter (Converter to I-Pipe, both)
1
15286606
Gasket, Exh Manif Pipe (L36)
1
24505057
Gasket, Exh Manif Pip (LA1)
1
Customer Notification
General Motors will notify customers of this special policy on their vehicles (see copy of typical customer letter included with this bulletin - actual divisional letter may vary slightly).
Service Procedure
Catalytic Converter Inspection
Begin the inspection by reviewing the condition described by the customer. Refer to "Description and Operation," SI document 657895, to help you determine the correct symptom diagnostic procedure when a malfunction exists.

Posted on Feb 08, 2009

csmock132
  • 4669 Answers

SOURCE: no fuel no spark 1990 k5 blazer 350

Take off the distributor cap. Check the star wheel that is splined to the distributor shaft that the pick-up coil uses. Make sure this wheel is not loose on the distributor shaft. It is right above the pick-up. If it is loose, replace the distributor. This is a common problem. If it needs one, all the part stores stock the distributor.

Posted on Mar 08, 2009

warlock61
  • 659 Answers

SOURCE: Car is running rough, afetr spark plug change

make sure no fuel is down in the spark plug ports it will short out the spark

Posted on Apr 15, 2009

fingaz22
  • 1068 Answers

SOURCE: ES300 Lexus cylinder misfiring

well a compression test will tell you if the engines internal components are working properly and it is critical you start there when having a problem like this.

testing the injectors will let you know if they are giving fuel to the engine. there are two test for the injector and first one you do is an electrical test to see if they are getting turned on and off as they are supposed to and it they are internaly good electricaly with is done by listening to them with a stethoscope to see if you here the clicking sound the pintle valve makes inside of them. then there is the test to see if there spraying fuel or leaking fuel witch is called a leak down test and is done with a fuel pressure guage and a tester that will electrical turn the individual ijector on to see how much pressure it drops.

this is what i would do if i had it in my shop.

let me know if you have any more question and that you understood what i described.

Posted on Sep 29, 2009

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