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Topic: Bad idle (Read 1991 times) |
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pools
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Hi there!
I found this on the site. http://www.fordscorpio.co.uk/cleanmaf.htm I have the same symptoms, bad idling when cold, high revs when hot. And the transmition wont change gear from third to fourth. (aut.) But, I have the 12V engine. What to do then? Can somebody help me?
P. Olsson
Sweden.
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tonyboy
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black2.924Vcoss ( No More )
  
 
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Re: Bad idle
« Reply #1 on: May 19th, 2009, 4:04pm » |
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Hello. You could clean your MAF with some carb cleaner, but i think i would start by looking at the transmisson fluid first, see if it's a pinkish reddish colour and not a brown colour and smells like burnt chip fat.....
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I think i'm going, erm what do you call it..... Senial.... 
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adzst24
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OH NO! Im sure this bit goes back somewhere ?
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Re: Bad idle
« Reply #2 on: May 19th, 2009, 4:12pm » |
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Hi 
Dont think v6 12v have a maf 
could be worth checking the tps unit and its wires to the loom?
regards
Adzs.....
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pools
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Re: Bad idle
« Reply #3 on: May 19th, 2009, 4:19pm » |
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Hi!
Thanks for the answers. But what is the tps unit? 
pools
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Simmo
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Re: Bad idle
« Reply #4 on: May 19th, 2009, 4:21pm » |
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Throttle position sensor  Explained HERE
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pools
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Re: Bad idle
« Reply #5 on: May 19th, 2009, 4:25pm » |
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Ah, sorry!
I've checked it, measured with a ohmmeter. It seems to be good.
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adzst24
Junior Member
OH NO! Im sure this bit goes back somewhere ?
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Re: Bad idle
« Reply #6 on: May 19th, 2009, 4:28pm » |
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Hi
Have you cleaned the idle control valve yet
Adzs..
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Simmo
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Re: Bad idle
« Reply #7 on: May 19th, 2009, 4:33pm » |
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There is a detailed diagram Here which may also help. Sometimes taking the large connector apart and cleaning it with contact cleaner will improve the connections.
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pools
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Re: Bad idle
« Reply #8 on: May 19th, 2009, 4:40pm » |
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on May 19th, 2009, 4:28pm, adzst24 wrote:Hi
Have you cleaned the idle control valve yet
Adzs.. |
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No. I'll try that. I'll be back in a few days.
Thanks a lot,
pools
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pools
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Re: Bad idle
« Reply #9 on: Aug 20th, 2009, 11:51am » |
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Hi!
I'm back 
I now have checked the Idle Control Valve, the Lamda sensors,
cables and vacuum leaks, but nothing.
Any ideas?
Thank's,
pools
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Snoopy
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Re: Bad idle
« Reply #10 on: Aug 21st, 2009, 7:25am » |
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YOU DO NOT HAVE A MAF ON THE 12V
The symptoms you describe are from my experience synonymous with a faulty IACV .
ie. bad idle when cold and high tickover revs when at running temperature.
Make sure all the vacuum pipes are connected and NOT leaking especially the one under the IACV .
The 4th gear on the 12v is controlled by vacuum from the pipe under the IACV 
if that is NOT connected or leaking then you will not get 4th gear engaging.
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pools
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Re: Bad idle
« Reply #11 on: Aug 26th, 2009, 1:01pm » |
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on Aug 21st, 2009, 7:25am, Snoopy wrote:YOU DO NOT HAVE A MAF ON THE 12V
The symptoms you describe are from my experience synonymous with a faulty IACV .
ie. bad idle when cold and high tickover revs when at running temperature.
Make sure all the vacuum pipes are connected and NOT leaking especially the one under the IACV .
The 4th gear on the 12v is controlled by vacuum from the pipe under the IACV
if that is NOT connected or leaking then you will not get 4th gear engaging. |
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No, I've now tried that. But no leek in this or any other
vacuum hose. If I take it apart, the engine runs a little bit
better, but not good. Also tried other hoses, but no
change. The IACV is also checked.
Any other ideas?
Thank's
pools
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Tompion
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1997 2.3 Ultima estate.
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Re: Bad idle
« Reply #12 on: Aug 26th, 2009, 1:12pm » |
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You may need to clean the IACV a couple of times - work the piston back & forth to force the cleaner through the hollow spindle into its chamber.
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pools
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Re: Bad idle
« Reply #13 on: Aug 27th, 2009, 3:17pm » |
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on Aug 26th, 2009, 1:12pm, Tompion wrote:| You may need to clean the IACV a couple of times - work the piston back & forth to force the cleaner through the hollow spindle into its chamber. |
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Done that. If I disconnect the IACV the engine dies. I can keep
the engine running if I give more gas, but it runs very bad.
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NiceMan
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I am Real NiceMan.
 
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Re: Bad idle
« Reply #14 on: Sep 3rd, 2009, 6:17am » |
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Any bad wire? Meen cabel...
My 24V eat old cabel and start run bad...
After i make all motor cabel new its start run nice.
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