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Bill
Bill, Chevy Technician
Category: Chevy
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Experience:  GM Certified Master Technician
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Chevrolet Malibu LS: 2006 chevy malibu 2.2 L has no power seems

Customer Question

2006 chevy malibu 2.2 L has no power seems to mis fire at 4000 rpm engine wants to stall? changed plugs,ignition coil,ignition module,wires no good still the same check engine light on had code checked at auto zone they said o2 sensor after cat was to rich? any idea
Submitted: 2 years ago.
Category: Chevy
Expert:  Bill replied 2 years ago.

Welcome to Just Answer.com. I'm here to help you and your 100% satisfaction is my goal.

Hello,

The post converter ho2 sensor is there for catalyst monitoring only and has no effect on engine driveability. Do you happen to know the fault code that was stored? Was it a p0420? Does the vehicle run relatively smooth at lower speeds but lose power on harder acceleration and at higher engine speeds?

Lastly... what is the mileage on the vehicle.

Thanks

Bill

Expert:  Bill replied 2 years ago.

P.S. If I'm offline for a bit it's because there are major storms here and the power is fluctuating.

Thanks

Bill

Customer: replied 2 years ago.

125000 miles idles well but doesnt accelerate well at all however if driving on a highway like road where you can get up to4th or 5th gear(flat ground only wont go over 40 if pushed har on hill) it seems to run and work fine unsure of coad though. guy at auto zone told me never showed reader to me.


 


 

Expert:  Bill replied 2 years ago.

Ok,

I would recommend if you have the tool, removing the front oxygen sensor (before the catalyst) and installing a pressure gauge. I strongly suspect you have a restricted catalytic converter. I can't recommend it but many simply remove the front oxygen sensor creating an exhaust leak and drive the vehicle for a short test drive. If it runs better with it out (it will have an exhaust leak that relieves the backpressure) then the catalytic converter will need to be replaced. This was not uncommon on these. GM even extended the warranty on them due to higher than normal failure rates. The extended it to 10 years and 120,000 miles.

I do believe you have a restricted catalytic converter.

Bill

Subject:10134B - Special Coverage Adjustment - Catalytic Converter Warranty Extension
Models:2006-2007 Chevrolet Malibu
Equipped with 2.2L Engine (L61)
2008 Chevrolet Malibu
2006-2008 Pontiac G6
2008 Saturn AURA
Equipped with 2.4L Engine (LE5) and 4-Speed Automatic Transmission (MN5)
2008 Chevrolet Malibu Hybrid
2008 Saturn AURA Hybrid
Equipped with 2.4L Engine (LAT)


This bulletin has been revised to include 2008 Chevrolet Malibu and Saturn AURA Hybrid vehicles equipped with a 2.4L engine (LAT). Please discard all copies of bulletin 10134A, issued August 2011.


Condition

Some customers of 2006-2007 model year Chevrolet Malibu vehicles equipped with a 2.2L engine (L61); 2006-2008 model year Pontiac G6 and 2008 model year Chevrolet Malibu and Saturn AURA vehicles equipped with a 2.4L engine (LE5) and 4-speed automatic transmission (MN5); and 2008 model year Chevrolet Malibu and Saturn AURA Hybrid vehicles equipped with a 2.4L engine (LAT) may comment about the illumination of the Malfunction Indicator Lamp. This may be due to erosion of the mat within the catalytic converter.

Special Coverage Adjustment

This special coverage covers the condition described above for a period of 10 years or 120,000 miles (193,000 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.

Dealers are to perform the necessary diagnostic steps to determine if the catalytic converter requires replacement. The customer should not be charged for performing the diagnostic check when it is determined that the catalytic converter is not the cause of the Malfunction Indicator Lamp. A labor code has been provided to submit claims for such diagnosis. Any additional necessary diagnosis and repairs that are not related to the catalytic converter are not covered by this special coverage. The customer should be informed that any further service that is not covered under the New Vehicle Limited Warranty will not be covered by this special coverage.

For 2006-2007 model year Chevrolet Malibu and Pontiac G6 vehicles: Vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after November 17, 2010, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to November 17, 2010, must be submitted to the Service Contract provider.

For 2008 model year Chevrolet Malibu, Pontiac G6, and Saturn AURA vehicles (non hybrid: Vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after August 23, 2011, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to August 23, 2011, must be submitted to the Service Contract provider.

For 2008 model year Chevrolet Malibu and Saturn AURA Hybrid vehicles: Vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after November 2, 2011, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claikms with repair orders prior to November 2, 2011, must be submitted to the Service Contract provider.

Vehicles Involved

Involved are certain 2006-2007 model year Chevrolet Malibu vehicles equipped with a 2.2L engine (L61); 2006-2008 model year Pontiac G6 and 2008 model year Chevrolet Malibu and Saturn AURA vehicles equipped with a 2.4L engine (LE5) and 4-speed automatic transmission (MN5); and 2008 model year Chevrolet Malibu and Saturn AURA Hybrid vehicles equipped with a 2.4L engine (LAT).

Important: Dealers are to confirm vehicle eligibility prior to beginning repairs by using the Applicable Warranties section in the Global Warranty Management system.

Parts Information

Parts required to complete this special coverage are to be obtained from General Motors Customer Care and Aftersales (GMCC&A).

Parts for 2006-2007 MY Vehicles


Part Number


Description


Qty/ Vehicle


12618544


Manifold, Exh (w/3 Way Ctltc Conv)


1


12589453


Gasket, Exh Manif


1


22626930


Gasket, Exh Manif Pipe (RR Only)


1


12617642


Bracket (Brace), Ctltc Conv


1


11518623


Bolt


1


11570734


Bolt


1


11609746


Nut, HFH M8 x 1.25


10

Parts for 2008 MY Vehicles (Non Hybrid)


Part Number


Description


Qty/ Vehicle


12618546


Manifold, Exh (w/3 Way Ctltc Conv)


1


12589453


Gasket, Exh Manif


1


22626930


Gasket, Exh Manif Pipe (RR Only)


1


11609746


Nut, HFH M8 x 1.25


10

Parts for 2008 MY Vehicles (Hybrid)


Part Number


Description


Qty/ Vehicle


12618544


Manifold, Exh (w/3 Way Ctltc Conv)


1


12589453


Gasket, Exh Manif


1


22626930


Gasket, Exh Manif Pipe (RR Only)


1


11609746


Nut, HFH M8 x 1.25


10

Customer Notification

General Motors will notify customers of this special coverage on their vehicles (see copy of typical customer letter included with this bulletin - actual divisional letter may vary slightly).

Service Procedure

Caution: The 10 exhaust manifold nuts MUST be replaced on all vehicles. Do not reuse the nuts.
Caution: A new catalytic converter bracket (brace) MUST be installed on all 2006-2007 model year vehicles, even if the vehicle was not originally equipped with the brace. On 2008 model year vehicles, the original brace must be reinstalled.

Verify that the catalytic converter assembly requires replacement. Refer to the appropriate diagnostic information in SI.

If the catalytic converter assembly does NOT require replacement, no further action is required. Inform the customer that any additional diagnosis and repairs are not covered under this special coverage.



Note: When replacing the exhaust manifold/converter on 2006-2007 vehicles only, it is also necessary to install support brace, GM P/N 12617642.

Note: Install the new brace on 2006-2007 model year vehicles, GM P/N12617642, using a bolt, GM P/N11570734, to attach the brace to the exhaust manifold/converter. Tighten the bolt to 58 N·m (43 lb ft).

Use bolt, GM P/N 11518623, to attach other end of brace to the transmission. Tighten the bolt to 53 N·m (39 lb ft).

If the catalytic converter assembly requires replacement, refer to the Exhaust Manifold Replacement (LE5) or (L61) (2006-2007); Exhaust Manifold Replacement (LAT or LE5) (2008 Malibu & AURA); or Exhaust Manifold Replacement (LE5) (2008 G6) procedure in SI

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