Notices
944 & 944S Forum 1982-1991

car shakes violently at idle

Thread Tools
 
Search this Thread
 
Old 08-18-2002, 01:49 AM
  #1  
84red944
AutoX
Thread Starter
 
84red944's Avatar
 
Join Date: May 2002
Posts: 14
Likes: 0
Received 0 Likes on 0 Posts
Post car shakes violently at idle

when I first start my car in the morning, my 84 944 seems to shake very rappidly. It will sometimes go away but will return when I have come to a complete stop at idle. What could be the problem?
Old 08-18-2002, 03:15 AM
  #2  
ERAU-944
Race Car
 
ERAU-944's Avatar
 
Join Date: Apr 2002
Location: FloriDUH
Posts: 3,817
Likes: 0
Received 0 Likes on 0 Posts
Post

what engine speed does your car idle at... you could try bumping it up.

also, one of your balance shafts could be 180 degrees out of sync.
Old 08-18-2002, 02:33 PM
  #3  
dave120
Drifting
 
dave120's Avatar
 
Join Date: Jan 2002
Location: Central Florida
Posts: 2,258
Likes: 0
Received 0 Likes on 0 Posts
Post

The motor mounts might also be shot. I know my car shook like a top fuel dragster at idle and low rpm. Replaced the motor mounts last weekend and it almost feels like the car is off it idles so smooth now..
Old 08-19-2002, 03:28 AM
  #4  
TomH
Pro
 
TomH's Avatar
 
Join Date: May 2001
Location: Annapolis, MD
Posts: 552
Likes: 0
Received 0 Likes on 0 Posts
Post

84Red, where are you, cold weather already? Early 944s have a idle stabilizer, and later ones have an idle control valve. If its sticking, it could cause your symptoms. Mine would start rough like that , and if I tapped on it with a screwdriver, it would resume normal idle. I replaced mine and all is well.



Quick Reply: car shakes violently at idle



All times are GMT -3. The time now is 06:07 AM.