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2010 gm equinox 2.4. I hooked up snap on scan tool did cmp actuator test and no variance and no increase with intake actuator. Hooked up Pico scope to control wire with unplugged and get a small bias voltage... Do solenoid test with scan tool and pulsing on control side and small voltage increase on the ground wire. Clear code and now only code that returns immediately is p0010. The solenoid should ohm 8-15 ohms.... It is showing 11-12 ohms. Am I safe to say that the solenoid is bad. I noticed in scanner Danners video that with the code in memory that the control circuit was not pulsed until cleared. Mine is pulsed with the code in memory. Any thoughts would be appreciated. Could I switch intake and exhaust solenoids and see if the code follows solenoid? Thanks in advance.
Last edit: 7 years 3 months ago by autojoe. Reason: Fixed
It sure sounds like that solenoid is dead, IMO. I believe the solenoids are different part numbers? So I wouldn't try swapping them unless you find that they're the same part.
For giggles, you could also try disconnecting the solenoid and jumping power and ground directly, to see if you can see/feel the actuator clicking. Do this briefly, as not to overhead the solenoid. If you don't hear anything, you can be pretty sure the solenoid is junk.
If you do pull the solenoid, have a close look for the little screen that's attached to the solenoid, over the oil passages. The screens like to fall off and get stuck in the solenoid. :lol:
Thanks Tyler for your reply. The local parts store only has one for both intake and exhaust called vvt solenoid. The only difference with the oe is that the solenoid collar is different color like the original one. I ordered oe on Amazon new for 38 free 2day prime shipping. I figure car has 110,000 miles can't go wrong replacing it. I don't want to be a parts changer. Always like to test. I am going to use power probe with disconnected to see if hear click. Even then that doesn't mean there is movement. Every thing electrical checked out. When scanner Danner did control circuit scope testing with code stored the pcm didn't pulse control circuit and this one was and the resistance value is correct. If the screens are damaged or clogged then code is triggered by the intake cps input to pcm but I think it is triggered by a voltage or current sensing circuit inside the pcm that monitors the intake and exhaust vvt solenoids.
Vehicle is fixed. Replaced solenoid fixed it. Used power probe and solenoid clicked but no movement. Screens were clean. Vehicle oil changed regularly. The resistance spec was normal. The pcm must watch the intake cps must be watched by pcm for verifying that the vvt intake solenoid is working properly and not a sensing circuit inside the pcm. The flow chart says to check oil level and for damaged screens or blocked screens.... A voltage sensing circuit would not be able to detect this. The only way it could would be monitoring the intake and exhaust cps to see if the vvt solenoids were working due to the above conditions including a electrical failure with control or ground wires or the solenoid itself. Thanks Tyler for your help.
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Thanks for the update! Also glad to hear no junk was found and the screens were intact.