1988 5000 CS Quattro stall problem

  #1  
Old 02-07-2007, 01:41 PM
Thread Starter
Join Date: Feb 2007
Posts: 3
Default 1988 5000 CS Quattro stall problem

alright, i just recently bought a 5000CS quattro, it has this problem when you get on it to speed up, once you left off the gas, it will diesel out and shut off, it's a gasoline engine, we found a vaccuum hose that seemed to be unhooked, so we hooked it back up, once we did that it was idling anywhere between 2000 and 2500 rpms, any suggestions?
 
  #2  
Old 02-08-2007, 02:46 AM
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Join Date: Mar 2006
Location: Black Mountain, NC
Posts: 852
Default RE: 1988 5000 CS Quattro stall problem

you got a bunch of vacum problems https://www.audiforums.com/m_390931/tm.htm ... then clean out the ISV then check for all temp sensors to be in good working condition
 
  #3  
Old 02-08-2007, 04:02 AM
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Join Date: Feb 2007
Posts: 3
Default RE: 1988 5000 CS Quattro stall problem

i would say it could be that, but it idles fine, and runs fine until you tromp on it to pass someone, as soon as you let off the gas it drops rpms and stalls out.
 
  #4  
Old 02-08-2007, 04:29 PM
2nd Gear
Join Date: Mar 2006
Location: Black Mountain, NC
Posts: 852
Default RE: 1988 5000 CS Quattro stall problem

you might also be suffering from a sticky deacceleration valve .... but in any case fix all tha vacum leaks first ... it is the cheapest and esiest fix you can do
 
  #5  
Old 02-20-2007, 12:44 AM
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Posts: 91
Default RE: 1988 5000 CS Quattro stall problem

I have had some of the same problems, I think I need to look for more vacuume leaks and such, any thing else it could be??? I have replaced the hall sensor, warm up module, all of the temperature senders, and many other things...That is where I will be headding next...This thing has been out here in the desert for many years, and I know there are alot of things that need replacing...but I really love the vehicle...I hope you find out what is giving you the problems...If I find any thing else on mine I will forward it.. THanks

Turbo Rhatt
 
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