Question about 2003 Chevrolet Monte Carlo

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My '03 monte carlo is very sluggish when going uphill or when passing. A GM technician had me replace the catalytic converter - no results. Any thoughts?

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YOUR TRANSMISSION COULD BE SLIPPING.CHECK TRANSMISSION FLUID EGR VALVE NOT WORKING .A STOPPED UP FUEL FILTER.BAD PLUG WIRES - PLUGS -COILS- WILL EFFECT POWER.

Posted on Sep 06, 2009

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My car has lost almost all its power, what would be the problem?


Subject: Special Policy Adjustment - Catalytic Converter #05551 - (09/14/2005)



Models: 2001-02 CHEVROLET IMPALA, MONTE CARLO
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
2001
Chevrolet
Monte Carlo
19100001
19378233
Contact GM This could be your problem....

Nov 07, 2011 | 2001 Chevrolet Monte Carlo

1 Answer

Replaced Egr sensor on 2003 monte carlo but check engine light is still on throwing same code?


Inefficient air flow can be from the catalytic converter clogging up. This is the most likely cause. Soon you will have 02 codes

Aug 01, 2011 | 2003 Chevrolet Monte Carlo

1 Answer

My 03 monte carlo is very sluggish. The engine


P0404 Exhaust Gas Recirculation Circuit Range/Performance
P0502 Vehicle Speed Sensor Low Input
P0440 Evaporative Emission Control System Malfunction
hope that helps /a little beyond my expertise but theres your codes your looking for ;)

Feb 04, 2010 | 2003 Chevrolet Monte Carlo

1 Answer

Catalytic converters


a muffler shop should be able to test for restriction in the exhaust, this will tell him the catalytic converter(s) are plugged or not.

Jan 10, 2010 | 2000 Dodge Intrepid

2 Answers

02 monte is breaking up at 3500rpms?


I have the 01 Monte and at 44000 miles the catalitic converter was clogged and my car did the same type activity. I had a high-flow type installed. I called GM and they said they would cover the cost, and did send me a check!
I hope this helps you.

Sep 10, 2009 | 2002 Chevrolet Monte Carlo

1 Answer

04 Monte Carlo 3.4L won't pass emissions changed gas cap still no luck. Diagnostics that fail are 1.) catalyst 2.) evaporative system 3.)o2 sensor Thanks, Joe


If the code you have is p0420, then it sounds like you mayu have a bad catalytic converter. This will inturn cause the oqygen sensor codes, It may still be under warranty. The warranty is up to 125k miles.

Jun 24, 2008 | 2004 Chevrolet Monte Carlo

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