Question about 1999 Mercury Sable

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This Mercury Sable is my youngest son's car...going to college while trying to keep him on the road. The steam issue seems resolved. Current issue is now the idle. Normally, it idles at around 1.1K

Should the issue be a sensor of some kind, if someone can give me the location of the sensor and proper description, I would greatly appreciate it. If not a sensor, kindly advise if you would. Thanks v. much.

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This problem COULD be many things. I would start off by checking your idle/air control valve which should be located on the backside of your throttle body. A high idle could indicated a faulty sensor,clogged catalyst(catalytic converter),bad o2 sensor,dirty MAP sensor,as well as your throttle and crankshaft position sensors.To make it simple,as long as your computer isn't popping any codes or showing check engine light,I don't think it's a mechanical,or sensor issue.Try changing out all of your filters,both air,fuel,and oil filters with a fresh oil change as well.Could be something as simple as curving out your ignition timing

Posted on May 13, 2014

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Look at the easy stuff first.. Vacuum leak.. look at the hose that goes from the air cleaner to the Throttle Body on the intake manifold..
Look at all the other hoses on the engine.. any cracked, broken, disconnected?? Dissconnect the air cleaner hose at the Mass air sensor.. clean inside the mass Air.. There is special cleaner available at all auto parts stores. Since you have been working under the hood you could have without knowing it damaged or disconnected a hose. Remove that same hose from the air cleaner/mass Air sensor and have a look at the throttle plate. you are looking for some reason it might be blocked open.. like corrosion build up or trash look at the cable that attaches from the gas pedal to the throttle body that opens and closes the throttle plate. possibly kinked, or bent. Check all those items.. It could be a coolent temperture sensor telling the computer that the engine is in warm-up mode all the time. Buy a Chilton manual for your car so you can find all these things.. Or go to your local library and look at one if its in their catalog. Always check for ovious problems first.

Posted on May 14, 2014

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Could be a faulty EGR or throttle position sensor; also check all vacuum lines for leaks (telltale hisssssing sounds).

Posted on May 14, 2014

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Posted on Jan 02, 2017

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SOURCE: mercury sable 2002 serpentine belt change

There are also two serpentine belt types for the 2002 sable. The S and U type engine. Take the old belt with you the the parts store. As for the diagram, I googled it under images and about a dozen correct ones came up. Remember the 2002 sable is the same as the 2002 Tarus.

Posted on May 02, 2009

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SOURCE: got a code 1742 on my sons mercury sable

Okay this is a internal problem in the transmission you will need to remove side cover and oil pan of the transmission.This is a big job to do it safely you will need a hoist and engine cradel this a profesional job my advice to you unless you have done this before 2 or 3 times take it in for service this is a delicate job mistakes can resault in costly mancanical further repairs.Hope this helps,John

Posted on Dec 27, 2009

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SOURCE: stalls when idling

This generally is your throttle position sensor or Idle speed control motor. The idle is controlled by the Power Conotrol Module/computer & shouldn't really require adjustment at the throttle body if the components are installed & working properly.

The symptom you are describing is a textbook example of a failure in one of the parts listed above.

As always, I suggest you do check your air filter & fuel filter if not changed recently, use an OBD II tester to provide you with any engine codes that haven't yet triggered the "check engine" light. Some single codes don't trigger the light & some do, just a good check you can usually have done at a local auto parts store. Free as a rule from some of them. They want to sell you the parts! Good luck.

Posted on Feb 07, 2010

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