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Porsche 944 The Porsche 944 and 944 Turbo was a huge success for Porsche throughout the 1980s.

Rough Idle

Old Oct 20, 2006 | 12:11 PM
  #1  
PorscheRulz's Avatar
Thread Starter
Joined: Oct 2006
Posts: 29
From: Atlanta, GA
Default Rough Idle

Guys,
I'm new to the forum and Porsche ownership. I have a problem with the 944 that I just acquired. When the engine returns to idle (after depressing clutch while in motion, upon startup, etc.) the RPM's dip down into the 7 to 800's for a brief second, and then return to normal idle. This of course causes the body to rattle and thus annoys me. Any ideas on what the problem may be? My first thought was a vacuum hose leak of some sort, but I cannot find any particular hose to be the culprit (mind it was a quick glance over the hoses). Any help is greatly appreciated!

Brett
 
Old Oct 20, 2006 | 07:31 PM
  #2  
PorscheDoc's Avatar
Super Moderator
Joined: Apr 2005
Posts: 3,532
From: Overland Park, KS
Default RE: Rough Idle

That is pretty normal behavior if it is a breif dip. You can try adjusting the TPS, checking the ISV, vacuum leaks etc.....
 
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