ChevroletCustomerService

drse,

When you took your HHR into the dealer, were they able to replicate rattle / knock at start up?

Evan, Chevrolet Customer Service

drse

This is the 3rd time they have looked at it. First, they replaced the belt tensioner.

The 2nd time said functioning as designed, not sure don't quote.

3rd time they said it, couldn't duplicate, it doesn't do it consistent enough to diagnose. I mentioned previously there was a service bulletin, fell on deaf ears. Today, THANKS to a post on here, I took the service bulletin number in. All of a sudden they are aware of the problem & it will be looked into and or parts ordered. We'll see.

drse

The issue causing the problem was the ignition switch. The radio was out & the gauges, speed / tach, would drop to zero. The temp & fuel would drop off & 3 idiot lights, traction / brake etc would flash when the other gauges fell. All caused by an ignition switch, go figure.

Code said "intermittent low speed LAN circuit. Was diagnosed after 5 hours in shop on 11-18-11. Said new ignition ordered, would be in on Monday & installed 11-21. Took over an extra week for some reason, didn't call that car was ready 11-30. Will post if any change. Thanks for everyone's help.

alarue

I had the exact same symptoms two times in one day a few weeks ago, so I decided that wasn't the car to take to the airport and leave sitting for 2.5 weeks. We got home yesterday and it worked fine today, but I think the IP lights are not working.

alarue

Okay, the problem seems to be addressed in TSB #PIP4549A
https://www.chevyhhr.net/forums/show...0&postcount=27

I went out and wiggled the wires around in the area shown in the photo in the post linked above, and although I couldn't see where any wires had rubbed through (I couldn't see well at all), I turned the key on and the IP lights came back on. Seems pretty clear that this is the problem.