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Joined: Dec 2003
Posts: 5
Newbie
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OP
Newbie
Joined: Dec 2003
Posts: 5 |
I have a 96 Contour 2.0L Zetec. When I am stopped at a red light with the car in drive or in 1st or in 2nd or if I put it in Reverse, it idles really really ruff. It doesn't do it when it is in nuetral or park. What could the problem be??Please help.
Hey Hey Hey...
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Joined: Feb 2003
Posts: 4,220
Hard-core CEG\'er
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Hard-core CEG\'er
Joined: Feb 2003
Posts: 4,220 |
IAC valve that is dirty or needs replacing or a simple vaccuum leak somewhere.
IAC valve isn't fun to replace on the Zetec, but it's doable. Part is about $100 retail but as cheap as less than $60 online.
2003 Mazda6s 3.0L MTX
Webpage
2004 Mazda3s 2.3L ATX
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Joined: Dec 2003
Posts: 5
Newbie
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OP
Newbie
Joined: Dec 2003
Posts: 5 |
THanks...but what is the IAC valve?
Hey Hey Hey...
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Joined: Oct 2002
Posts: 2,408
Hard-core CEG'er
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Hard-core CEG'er
Joined: Oct 2002
Posts: 2,408 |
The Idle Air Control can stick almost closed and starve the engine for air. It is mounted below the intake manifold. The engine can idle low and rough for other reasons. - Stretched timing belt
- Poor plug and plug wire condition
- Low fuel pressure
- Dirty injectors
- Vacuum or intake plenum air leaks
- EGR leakage
Take your pick. Check for trouble codes first, even if you have not noticed the CEL come on. As we say - Autozone will check them free. Just remember to write the the exact number down, if any.
"Those who cannot remember the past are condemned to repeat it" -George Santayana
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Joined: Sep 2003
Posts: 2,725
Hard-core CEG\'er
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Hard-core CEG\'er
Joined: Sep 2003
Posts: 2,725 |
Originally posted by FixituptoshowGLTOUR:
I have a 96 Contour 2.0L Zetec. When I am stopped at a red light with the car in drive or in 1st or in 2nd or if I put it in Reverse, it idles really really ruff. It doesn't do it when it is in nuetral or park. What could the problem be??Please help.
I went to a few shops and they all told me that all Contours idle rough.
Mine wheel shakes and [censored], thinking about cleaning MAF, if we ever gets highs above 15 around here.
MAF is cheapest thing to do, get some NON-residue eletric cleaner from Radio Shack.
By the way I called for you $69.99 IAC vavle, at Pep Boys.
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Joined: Aug 2001
Posts: 17,248
CEG road warrior
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CEG road warrior
Joined: Aug 2001
Posts: 17,248 |
Have you done a tune up? 
Hector
2003 Rally Red Mitsubishi Evolution VIII
257HP/259TQ
2005 Lapis Blue Mazda 6s
RET: 00 Cabernet Red Ford Contour Zetec ATX SUPERCHARGED
160HP/141TQ
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Joined: Sep 2003
Posts: 2,725
Hard-core CEG\'er
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Hard-core CEG\'er
Joined: Sep 2003
Posts: 2,725 |
Originally posted by LoCoZ:
Have you done a tune up?
New spark plugs/wires ( expensive type), air filter, fuel filter, O2 sensor, flushed injectors out. Helped a slight bit after the injector cleaning last week.
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Joined: Jul 2000
Posts: 3,465
Hard-core CEG'er
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Hard-core CEG'er
Joined: Jul 2000
Posts: 3,465 |
have you tried to reset the computer after changing all that?
2003 Subaru WRX some mods
Even if you don't have the answer, you certainly have to admire the problem.
aka ZetecRacing
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Joined: Aug 2001
Posts: 17,248
CEG road warrior
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CEG road warrior
Joined: Aug 2001
Posts: 17,248 |
Originally posted by ZetecRacing:
have you tried to reset the computer after changing all that?
May work! 
Hector
2003 Rally Red Mitsubishi Evolution VIII
257HP/259TQ
2005 Lapis Blue Mazda 6s
RET: 00 Cabernet Red Ford Contour Zetec ATX SUPERCHARGED
160HP/141TQ
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Joined: May 2002
Posts: 21,653
I have no life
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I have no life
Joined: May 2002
Posts: 21,653 |
I still don't know where the IAC valve is,, any body know?
98.5 SVT
91 Escort GT (almost sold)
96 ATX Zetec (i brake to watch you swerve)
FS: SVT rear sway bar
WTB: Very cheap beater
CEG Dragon Run - October 13-15
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