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Registered
Join Date: Mar 2010
Posts: 11
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87 911 3.2 idle issues
Gentlemen,
My 87 911 has one of those troubling as in make you crazy issues where the car starts right up, no black smoke as in rich, not lean either until it gets warmed up then I sometimes get erratic idle , rolling idle , stalls. The valve located on the rear of the engine has electric plug going into it and air hoses going into the intake tract, I have cleaned this before re-installed and the car ran perfect for a good while. There was no sign of varnish or carbon that I could see and the air connections are not leaking, do these commonly go bad at 90,000 miles?? Should I be looking at something else?? Thanks in advance. Jim |
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06-28-2010, 03:26 AM
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Registered
Join Date: Dec 1999
Location: Novato, CA
Posts: 4,740
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Worn air flow meter tracks?
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06-28-2010, 04:40 AM
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Join Date: Apr 2002
Posts: 30,533
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Hi Jim, it's been a few years, but when I cleaned my ICV (idle control valve) several years ago as you describe, the "fix" was also only temporary and I ended up replacing it. Also double check for vacuum leaks with those hoses. My car had less than 60K at the time, so I figured it was "age" and not necessarily related to mileage. Lots of info regarding "hunting idle" for 3.2s in the archives if that isn't your issue. Good luck!
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06-28-2010, 06:08 AM
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Diss Member
Join Date: Jul 2002
Location: SC - (Aiken in the 'other' SC)
Posts: 5,022
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Has the Cylinder Head Temp sensor ever been replaced? That is an extremely common failure point and can cause lots of really erratic things to happen. The original sensor has been superseded to a newer one that is more reliable.
__________________
- "Speed kills! How fast do you want to go?" - anon. - "If More is better then Too Much is just right!!!" - Mad Mac Durgeloh -- Wayne - 87 Carrera coupe -> The pooch. |
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06-28-2010, 06:25 AM
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