I just fixed this problem on my 1994 Camaro. It now idles smooth as glass in gear at idle.
I figured I'd post the solution.
My 3.4 camaro shook like a mother at idle in gear. Man it was bad! In P or N it went almost completely away. rev to 1000 rpm and it was gone completely.
Solution: replace the motor mounts.
Reason: after 12 years they commonly dry out. The rubber shrinks. They no longer isolate the vibration of the motor from the chasis as they should. Many cars with bad motor mounts are mis-diagnosed as having misfires or other issues.
Cost: $35.00 each X2 at dealer discout price.
Installation: 2 hours. It requires some sockets, jack, jackstands and a short piece of wood 2x4.
Procedure:
Raise the car and support it with the jackstands.
remove the long bolt and nut that goes through the drivers side mount.
Place the jack under the oil pan with a piece of wood between the jack and pan.
Jack the motor up so the mount seperates
remove the mount and install the new one
Lower the motor back into the mount
replace the long bolt and nut
repeat for passenger side.
lower car
enjoy your smooth engine
done!
I figured I'd post the solution.
My 3.4 camaro shook like a mother at idle in gear. Man it was bad! In P or N it went almost completely away. rev to 1000 rpm and it was gone completely.
Solution: replace the motor mounts.
Reason: after 12 years they commonly dry out. The rubber shrinks. They no longer isolate the vibration of the motor from the chasis as they should. Many cars with bad motor mounts are mis-diagnosed as having misfires or other issues.
Cost: $35.00 each X2 at dealer discout price.
Installation: 2 hours. It requires some sockets, jack, jackstands and a short piece of wood 2x4.
Procedure:
Raise the car and support it with the jackstands.
remove the long bolt and nut that goes through the drivers side mount.
Place the jack under the oil pan with a piece of wood between the jack and pan.
Jack the motor up so the mount seperates
remove the mount and install the new one
Lower the motor back into the mount
replace the long bolt and nut
repeat for passenger side.
lower car
enjoy your smooth engine
done!
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