2012 buick enclave, p0021 code, swapped out vvt valves, e...
Responses
Nachum Wagschal
241 days ago
Good Morning ,
Did you replace the VVT Actuator?
Nachum Wagschal
241 days ago
If that didn't do it , it could be a stretched timing chain causing it .
These had problems and there were some software updates for the computer that they put out that may fix it
Customer
241 days ago
OK so the chevy house would have the software updates?
Nachum Wagschal
241 days ago
Yes i would try that first ,
otherwise its a pretty big job to do all of the timing chains ,
Customer
241 days ago
OK thanks
Nachum Wagschal
241 days ago
you are welcome
Still not sure what you need?
Have a certified mobile mechanic diagnose what's wrong with your car, at your home or office.
Top Questions
Trending Topics
What others are asking
How do I turn the high beams?
High beams on your truck can become useful when driving at night when there are no street lamps or other cars around. The high beams can increase your range of vision. To turn on the high beams. Make sure your...
What would cause 2 main computers to be bad within 6months
This does sound like a very frustrating experience. Unfortunately it is difficult to pinpoint exactly what is causing your computer to go bad (https://www.yourmechanic.com/article/how-long-does-an-engine-control-module-ecm-last) without knowing what kind of computers have been installed in your vehicle. Aftermarket, used or refurbished...
Bad pcm?
If you can run your engine, with the fuel injectors on the right bank disconnected, it is not your PCM (ECM). By disconnecting the injectors, the computer cannot put fuel in without opening the injectors. You need to check the...
intake leak and sputters and dies
This could be a variety of issues causing the rough idling. The oil leak at the intake suggests you may have a blown head gasket. Has the car gotten abnormally hot (https://www.yourmechanic.com/services/car-is-overheating-inspection)? If so, this could explain the leak and...
Reversed battery terminals
Reverse polarity, at the battery, in a 12 volt electrical system on a car can cause a variety of effects including damaging the alternator. As an initial step in diagnosing the battery warning light you can request that a certified...
P1684
P1684 indicates that the engine control unit / powertrain control module memory was cleared at some point within the last 50 ignition cycles - start/drive/turn off. If the battery was replaced or disconnected, it can leave this fault code in...
Gas pump keeps shutting off. I've replaced the charcoal canister also the valve and still won't work
This is likely related to your EVAP emissions system and something called a purge valve solenoid. The EVAP system prevents fuel vapors from the fuel tank from escaping into the atmosphere. The EVAP system collects and temporarily stores the fuel...
My car start and sometimes it doesnt. The battery in good condition
Starters sometimes develop "bad spots" on the armature (of the starter motor). That causes intermittent, unreliable operation just like what you are experiencing. The problem is easily diagnosed and the solution can be implemented at the same time (install a...
Car died tried jumping it didn't work, Got a new start er and new battery but car won't start what's else could be wrong?
It is possible that this issue could be fuel-related. I would recommend having your vehicle inspected by a qualified professional to determine the exact cause of this issue. Consider YourMechanic as this can be done at your home or office....
Browse other content
Estimates
Cities
Maintenance
2012 buick enclave, p0021 code, swapped out vvt valves, engine is still not burning off all fuel and rpms are still jerking around 100 rpms while in cruise. I don't feel a it during acceleration. Mechanic's Assistant: Have...
2012 buick enclave, p0021 code, swapped out vvt valves, engine is still not burning off all fuel and rpms are still jerking around 100 rpms while in cruise. I don't feel a it during acceleration. Mechanic's Assistant: Have you noticed an increase in fuel consumption? And how does the Enclave start—same as usual? Starts the same as usual, higher fuel consumption Mechanic's Assistant: Are you fixing your Enclave yourself? What have you tried so far? Myself, swapped vvt valves and there was no sludge on valves