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Makes 🢒 Buick 🢒 2008 🢒 LaCrosse 🢒 Bulletins 🢒 Malfunction Indicator Lamp - Check Engine Light On, Hesitation, Reduced Engine Power Message, DTCs P1125, P2101, P2120, P2125 or P2138 Set (Perform Repair as Outlined)

Malfunction Indicator Lamp - Check Engine Light On, Hesitation, Reduced Engine Power Message, DTCs P1125, P2101, P2120, P2125 or P2138 Set (Perform Repair as Outlined)

Subject:Malfunction Indicator Lamp -- Check Engine Light On, Hesitation, Reduced Engine Power Message, DTCs P1125, P2101, P2120, P2125 or P2138 Set (Perform Repair as Outlined)

Models:2008 Buick Allure (Canada Only), LaCrosse
2008 Pontiac Grand Prix
with 3.8L Engine (VIN 2 -- RPO L26)


Condition

Some customers may comment that the check engine light is illuminated. Additional comments may be that the vehicle was exhibiting a hesitation and/or had the "Reduced Engine Power" symbol or message displayed.

When checking for DTCs in the powertrain control module (PCM), codes P1125, P2101, P2120, P2125 or P2138 may be found.

Cause

This condition may be caused by moisture or water inside electrical connector X101 located on the left strut (shock) tower.

Correction

Perform the repair listed below.


    Object Number: 2178240 Size: SH
  1. Detach the electrical connector X101 from the left strut (shock ) tower.

    2. Object Number: 2178244 Size: SH
  2. Using a small pocket-size screwdriver, carefully reposition the wire seal out of the connector body. Do this on both sides of the connector.
  3. With the seals out of the way, inspect for the presence of moisture or water inside the connector.
  4. Using compressed air, remove any moisture or water from the connector cavities and terminals.
  5. Fill the cavities on both sides of the connector with Dielectric Lubricant, P/N 12377900 (in Canada, use P/N 10953529).
  6. Reinstall the wire seals into both halves of the connector body.
  7. Wipe away any lubricant that may have oozed out onto the outside of the connector.

    8. Object Number: 2178245 Size: SH
  8. Seal the outside of the connector halves to prevent the reoccurrence of moisture or water.
    9. • If available, wrap the outside of each connector half with a *3M™ Scotch® Electrical Moisture Sealant Tape, P/N 06149. Each side of the connector will require two patches to seal the connector halves and wires.
    • If the 3M™ product is not available, then wrap the outside of both connector halves and wires in black electrical tape.
  9. Reattach the connector to the strut (shock) tower.
  10. Using a Tech 2®, clear the DTCs.

*We believe this source and their products to be reliable. There may be additional manufacturers of such products. General Motors does not endorse, indicate any preference for or assume any responsibility for the products from this firm or for any such items which may be available from other sources.

Parts Information

Part Number

Description

Qty

Material Allowance

12377900

Dielectric Lubricant (2 oz container)

1

$ 1.00

3M™ 06149

or

3M™ 06147

Scotch® Electrical Moisture Sealant Tape (2½" X 2½" Patch (box of 25))

4 per vehicle

$3.00

Scotch® Electrical Moisture Sealant Tape (2½" X 10" Roll)

cut to size

Warranty Information

For vehicles repaired under warranty, use:

Labor Operation

Description

Labor Time

N9590*

Engine Harness Electrical Connector X101 Repair

0.5 hr

*This is a unique labor operation for bulletin use only. It will not be published in the Labor Time Guide.