Subject: | Low Oil Pressure Light/Gauge |
Models: | 2006 Buick Terraza |
2006 Chevrolet Impala, Monte Carlo, Malibu, Uplander |
2006 Pontiac G6, Montana SV6 |
2006 Saturn Relay |
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Low oil pressure in left hand turns. Usually occurs after vehicle has accumulated some mileage, but generally seen before 10,000 miles have accrued on vehicle. Condition only occurs when making left hand turns.
Engine oil pump may have a loose/missing cup plug in the pump body. During left hand turns, oil will move away from the pump body, exposing the open hole in the pump body and causing the low oil pressure concern.
Note: Make sure the cup plug is returned with the pump assembly if it was found in the oil pan
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.