One second grind on cold start.
#1
One second grind on cold start.
Hello everyone. I'm looking for some help in this. When I start my HHR, after two seconds of running it makes a one second "flutter/grind" sound. This only happens when it's been sitting for at least a couple hours. It sounds worse when sitting over night. I'm going to try and pin point the area. My car isn't hesitating, idling rough or bogging at stop lights. I just have this weird one second sound that I don't like! Any help would be greatly appreciated.
Thanks
Thanks
#4
Hello everyone. I'm looking for some help in this. When I start my HHR, after two seconds of running it makes a one second "flutter/grind" sound. This only happens when it's been sitting for at least a couple hours. It sounds worse when sitting over night. I'm going to try and pin point the area. My car isn't hesitating, idling rough or bogging at stop lights. I just have this weird one second sound that I don't like! Any help would be greatly appreciated.
Thanks
Thanks
Tyler Harvey,
I'm sorry you are having this issue. Have you considered having this issue addressed at the dealer?
Evan, Chevrolet Customer Service
#6
I do notice something that might be what the OP described when I start the car... I think it is the auxiliary brake vacuum pump cycling on so it has proper vacuum for the brakes. I wouldn't call it a grind, but I do notice a noise and a short-duration drop in the idle right after starting the car. It's done it for a long time.