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Topic: Strange idle problem (Read 1436 times) |
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Martinss
Newbie
Ford Sierra 2.9i BOB
Posts: 27
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Strange idle problem
« on: Jan 28th, 2014, 9:49pm » |
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Hello there!
My 2.0i 16v 1995' manual scorpio has strange problem, when I drive, for example on constant 60km/h, then pull out of the gear and put in neutral position rpm rises to 2k - 2.5k and stays there until complete stop, when i stop, then it drops to normal ~800rpm. TPS or ICV? Also, throttle cable isn't getting stuck, it is possible to rise rpm with accelerator pedal while rolling in neutral, rpm rises normally, but then again drops to 2-2.5k rpm. Haven't tried diagnostic yet, but just wanted to get clear what to check. 
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Simmo
Administrator
I'm an OAP !
Posts: 5508
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Re: Strange idle problem
« Reply #1 on: Jan 29th, 2014, 8:33am » |
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The first thing to do is Clean the MAF
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Now I'm an OAP
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Jonnycab
Senior Member
Former owner of 2.3 Ultima Facelift saloon
Posts: 3900
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Re: Strange idle problem
« Reply #2 on: Feb 4th, 2014, 1:27am » |
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Never had this problem when I owned a Scorpio, but had the same problem on my Jeep Grand Cherokee a little while ago.
A quick scan with my Autel MS509 OBDII scanner revealed it was the TPS at fault.
If you don't have a diagnostic scanner to hand & before you pay someone to scan it.....remove the ICV & give it a good clean with carb spray.....it may be that it's coked up & sticking
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Martinss
Newbie
Ford Sierra 2.9i BOB
Posts: 27
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Re: Strange idle problem
« Reply #4 on: Feb 5th, 2014, 6:34am » |
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Thanks for a solutions everybody, when it will be a little warmer outside ill try to clean it tps and maf with carb cleaner.
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