I have a 2009 gmc yukon denali L9H 6l80 with 175k miles. I have p0016 that randomly goes active . Drves and shifts perfectly fine except once it is at operating temp and only when deceleration the engine begins to stutter and bog down and feels like it is misfiring. But i have no miss fire registering. I have verified all grounds and wiring harness are good. I recently replace timing chain and tensioner vvt actuator and phaser and camshaft and crankshaft sensors due to synchronization fault code p0016. I'm at the end of my rope and need any and all suggestions
2009 gmc yukon denali l9h 6l80 driveability issue
- Thread starter Nando2724
- Start date
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1. Did you perform the CASE relearn with a Tech 2 or bidirectional scanner?
2. Were the phaser, actuator, crank and cam sensors genuine GM or ACDelco? (Aftermarket on the crank and cam sensors can be problematic.)
3. Did you install a new timing chain sprockets along with the chain?
4. And I'm assuming after you installed and set the timing chain correctly, you rotated the engine over by hand a couple times and verified the timing marks still lined up?
5. After assembly of the timing chain and gears, did you confirm 0.001 camshaft end play?
6. What's your oil pressure at a hot idle?
7. And I'm assuming you installed a new oil pump since you had it off? And if so, which oil pump did you use?
2. Were the phaser, actuator, crank and cam sensors genuine GM or ACDelco? (Aftermarket on the crank and cam sensors can be problematic.)
3. Did you install a new timing chain sprockets along with the chain?
4. And I'm assuming after you installed and set the timing chain correctly, you rotated the engine over by hand a couple times and verified the timing marks still lined up?
5. After assembly of the timing chain and gears, did you confirm 0.001 camshaft end play?
6. What's your oil pressure at a hot idle?
7. And I'm assuming you installed a new oil pump since you had it off? And if so, which oil pump did you use?
Joseph Garcia
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Welcome to the Forum from NH.
Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.
I hope that you will become a participating member in the Forum's discussions.
Pics of the truck, please.
You are already receiving clarifying questions from the knowledgeable folks on this Forum. We will help you get through this issue.
Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.
I hope that you will become a participating member in the Forum's discussions.
Pics of the truck, please.
You are already receiving clarifying questions from the knowledgeable folks on this Forum. We will help you get through this issue.
