Do Not Swap AFM Componenets From Non-AFM To AFM Engines - keywords 07 active cylinder deactivation DOD engine exchange exhaust fuel intake lifter loma L92 management manifold misfire miss noise oil
| Subject: | Do Not Swap AFM Components From Non-AFM to AFM Engines |
| Models: | 2007 Cadillac Escalade |
| 2007 GMC Yukon Denali |
| Equipped with the 6.2 L92 engine |
This was created to update model years and keywords. Please discard PIP3919.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
During a engine mechanical repair or replacement, a dealer may notice the engine has or doesn't have a VLOM manifold/connector.
The 6.2L L92 engines prior to April 2006 were built with Active Fuel Management AFM) hardware components, but it was disabled.
The 6.2L L92 engines built after April 1, 2006 were built without AFM components.
Recommendation/Instructions:
Do not swap AFM components from a non-AFM to a AFM engine or vise-versa. The components are not interchangeable and may cause engine driveability or mechanical concerns.
All replacement engines should be a non-AFM equipped engine, and bulletin number 06-06-04-029 should be performed during installation. (vehicles built before April 1, 2006)
TAC consultants please see administrative details.
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.
