Crankshaft position sensor
Asked by L-K Feb 26, 2019 at 11:22 AM about the 2010 GMC Terrain SLE1
Question type: Maintenance & Repair
Have a GMC Terrain 2010 , I have the engine light
on : Crankshaft position sensor, i replace it myself
used the original part but now the problem is how
to turn off my engine light I drove the car like
60miles in the streets and the light is still on. I need
Help Plzz
4 Answers
Hornet_2497 answered 5 years ago
Sometimes these check engine lights reset themselves after several "good" drive cycles. Otherwise you can do a reset with a code reader, or you can disconnect the battery a few minutes. Then if the check engine light reappears, it may be the same or a different code. If the problem persists, have an auto parts store do a scan for free.
Hornet_2497 answered 5 years ago
I might add, that when replacing the camshaft position sensor (code P0320), you push the new sensor into the hole, touching the flywheel, then pull it back 0.030 inches, then tighten the fastener. Proper clearance is important to get a strong signal for the ignition to run properly.
My car code is P0017, Appears as the crankshaft position sensor. Thank you for your comments(:
Hornet_2497 answered 5 years ago
Actually code P0017 is the camshaft out of time due to part failure, or carbon build up, or gummed up actuators. Your engine has variable valve timing and the actuators can get gummed up from lack of frequent oil changes. What happens is at high rpms the ECM tells the actuators to advance the cam to make the valves run at a more optimum timing for the higher speeds. (Just like advancing spark timing for higher rpms.) BUT if they stick in the "advanced" position, it is out of time and sets a code. Long story short: This problem came up on this forum, and changing the oil and running the car hard cleared up the problem. I would start with an oil change and give it time to cleanse the actuators. (I use Marvel Miracle Oil to clean up dirty engines....WalMart.) It will not hurt the engine to drive it like this. Google for more information.