So I've been noticing the last couple months that I have rough idle with AC on and in gear. And today the drive just feels different. I noticed on a 70mile commute home that at points it felt rough even in cruise like the car would have little jerks. (Not left or right jerks). And got home, shut the voy off and noticed a shake and a rattle sound. With the hood open, I turned it on and shut it off a few more times, and noticed the engine shake a decent amount side to side when shut off. I'm thinking motor mounts, but would like some opinions/input. Thanks
motor mounts?
- Thread starter dwzook
- Start date
BlazingTrails
Member
- Apr 27, 2014
- 19,409
Have you visually inspected the engine mounts to see if they look broken? sometimes you have to get a jack under the engine and lift it up slightly to see if they are ripped.
jimmyjam
Member
- Nov 18, 2011
- 1,634
on an I6, the passenger side tends to go first because of the exhaust heat. This coupled with the fact that the passenger side is easier to get to, you may want to just swap that side out and see if it feels better.
Agreed. And only use Delco OEM mounts. Aftermarket ones are too stiff, and have been reported to not solve the idle vibration.
I went ahead and ordered both mounts yesterday. And got the GM mounts. Do I need to even worry about the tranny mount?
BlazingTrails
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- Apr 27, 2014
- 19,409
HARDTRAILZ
Moderator
- Nov 18, 2011
- 49,665
My tranny mount was DEAD and my motor mounts are still A-OK. You can see it by looking under and having someone shift reverse to drive with the brakes held on.
BlazingTrails
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- Apr 27, 2014
- 19,409
Ok it is extremely rare if you don't have a jacked up 4x4 and go off roading? In 15 years I've only seen one transmission mount that was bad on a rear wheels drive vehicle.
jimmyjam
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- Nov 18, 2011
- 1,634
HARDTRAILZ
Moderator
- Nov 18, 2011
- 49,665
BlazingTrails
Member
- Apr 27, 2014
- 19,409
If I were going to ruin a transmission mount...that is def the way I would want to do it [emoji3]