XJ XJ6 / XJR6 ( X300 ) 1995-1997

'97 XJ6 wants to stall at stops when cold

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Old Mar 25, 2008 | 12:13 PM
  #2  
ken@britishparts.com's Avatar
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From: Houston, Texas
Default RE: '97 XJ6 wants to stall at stops when cold

Sounds to be as though the alternator is going south.
 
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Old Mar 25, 2008 | 06:06 PM
  #3  
FactoryJaguarTech's Avatar
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Default RE: '97 XJ6 wants to stall at stops when cold

The car shouldnt stall at 4000 rpms.

I agree with your assumption Ken with the lights dimming, however if 400 rpm was meant to be said, I would look at the idle control valve/solenoid. I am not sure on much on the XJ6s but I sure see alot of those valves getting changed....lol

 
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Old Mar 25, 2008 | 06:55 PM
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JagtechOhio's Avatar
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From: Powell, Ohio U.S.A. 43065
Default RE: '97 XJ6 wants to stall at stops when cold

gp,

FJT= Yoda!

My '97 VDP started this act about two weeks ago, although only occasionally. I haven't looked into it yet (no check engine light), but my first hunch was the idle control valve. The alternator goes off charge when the idle speed drops below somewhere around 500 RPM: any low voltmeter reading or dimming lights is an effect of the fault, not the cause. Don't throw alot of money at it unless you can identify the problem. I'll have a look at mine in the next few days, and let you know what I learn in case you haven't already gotten things straightened out.
 
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Old Mar 25, 2008 | 08:03 PM
  #5  
jag_genius's Avatar
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Default RE: '97 XJ6 wants to stall at stops when cold

idle air control valve failures tend to increase rpm rather then decrese. tends to keep rpms at 900-1300..
 
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Old Mar 25, 2008 | 08:07 PM
  #6  
jag_genius's Avatar
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Default RE: '97 XJ6 wants to stall at stops when cold

have seen ecm power relays do a similar thing.. definitly check the alternator
 
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Old Mar 25, 2008 | 08:24 PM
  #7  
FactoryJaguarTech's Avatar
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Default RE: '97 XJ6 wants to stall at stops when cold

Thats why I don't work on the older stuff. Everything is backward......lol
 
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Old Mar 25, 2008 | 08:27 PM
  #8  
jag_genius's Avatar
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Default RE: '97 XJ6 wants to stall at stops when cold

lol
 
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Old Mar 26, 2008 | 07:29 PM
  #10  
jag_genius's Avatar
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From: Pompino Beach , FL
Default RE: '97 XJ6 wants to stall at stops when cold

car may have to problems one being alternator.. weak. and something causing it to stall. ie crank sensor, fuel problem.. ecm relay.
 
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