I have a 2006 2.4 HHR. Occasionally I have had the T/C light come on and the car will shift hard. If I turn the car off and let it set for a while the T/C light goes out and the car returns to normal. Today the T/C light came on first and then the Check Engine light came on after travelling about 20 miles. It did not seem to affect how the car performed as far as acceleration but it did shift hard. After turning the car off a few times and traveling about 40 miles the T/C light went out and the shifting returned to normal but the Check Engine Light is still on. What causes this and what should I do.
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2006 Chevrolet HHR Question: T/C and engine light on
Answer #1DaveJHM November 30, 2010, 00:22Master
Sounds like an intermittent transmission issue. Something that fails consistently when driving the car. Can be electrical in nature, or mechanical. You will need a good diagnosis from a qualified technician.
Here are some links to some shops near you...
Best of luck.
Answer #2Visitor, January 18, 2011, 15:41
I had the same thing happen to my car it a sensor. Its either the intake valve sensor or the exhaust sensor. Its about a $150 repair bill. But just to let you know once one goes out the other will so have them repair both at the same time. It will save you money in the long run trust me....
Good luck if you haven't had it fixed yet.
Answer #3HHRpal January 15, 2012, 01:22Rookie
I own a 2006 HHR LT 2.4L and had the same problem for the past year.At 96000 kilometers it's not normal.So I took it in to the dealer and after three attemps they finally decided to change the two Phasers,the timing chain and the two timing chain binders.GM paid for all of the parts and I was stuck to pay the labor.Beleive me this should resolve the problem or somebody is going to hear from me.