My wifes chevy hhr died going down the road and now I cant get it to start at all, it will turn over fine, new plugs, new throttle body, new pedal(with position sensor) new reman alternator(under warranty), showed a P0122 code but doesn't show any codes now! car is a 2006 hhr 2.2L automatic 240000 miles!

 

My guess is the timing chain broke. Pretty simple fpr a mechanic to diagnose.

 

More details and clarification please - did you replace all those parts before or after it died on you? If it is a timing chain like donbrew suspects, the engine might well be a write off. Was there any rattling or weird noises from the engine before it died?

 

these were put on after the car died, per a mechanics recommendation, (seems like now he was just guessing) and is there any way to check the timing chain without a true mechanic looking at it?

 

and no weird rattling noises or anything

 

If you can take the cam cover off the top of the motor and observe; if you see gears and no chain: broken, if the chain has noticeable slack: broken, if it does not move when the starter is cranking: broken.

If this guy didn't do that simple test threaten to sue him. He may have fixed the P0122 but there is no way of telling if the motor is not running, I doubt it.

I don't suggest going to a Dealership, they went to the same clown school this guy did.

 

 

This is what it looked like when I pulled valve cover, when I spun. The crank it became loose

 

 

How did you spin the crankshaft? By turning the key to start? Or by hand, with a socket and ratchet? If by hand, clockwise or counterclockwise?