For 1990-2009 cars only
2002-2005 4.8 5.3 6.0 Chevrolet GMC Engine Oil Dipstick Unseated or Oil Leak - keywords L33 LQ9 LM7 LQ4 LR4 L59 pcv cold freeze start up fill ice vent intake air inlet ambient temperature
| Subject: | 2002-2005 4.8 5.3 6.0 Chevrolet GMC Engine Oil Dipstick Unseated or Oil Leak |
| Models: |
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in the PI.
Condition/Concern:
A vehicle may be brought to the dealer with a customer concern of an oil leak or the dipstick unseating from the dipstick tube.
Recommendation/Instructions:
If the dipstick is unseated from the dipstick tube, inspect the engine PCV system for ice or freezing up.
If the PCV system is found to be frozen or restricted with ice, replace the Oil Fill Cap with a vented oil fill cap part number 12573342.
Please follow this diagnosis 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.
Models:
(02-05 Chevrolet Silverado) and (02-05 GMC Sierra)
