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Why does my 1999 ford taurus idle real high and then so low that it would cut off when it's in park?

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NEEDS FINE TUNING MATE, THE AUTOMATIC CHOKE COMES O WHEN YOU FIRST START UP THEN SHUTS DOWN WHEN THE CAR IS WARM, JUST UP THE IDLING SCREW A TICK THAT SHOULD SORT IT OUT COBBER

Posted on May 11, 2013

  • Andy May 11, 2013

    Thanks! I'll definately do that and see if it works... Do you know anything about what other reasons why a tcc would be getting stuck in the on position when in park? I bought a new solenoid but I was hoping for an easier fix.. Thanks.

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6 Suggested Answers

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  • 2 Answers

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Posted on Jan 02, 2017

localwonder
  • 6784 Answers

SOURCE: 86 toyota 4runner idles low and has half the power

Ok, there are four problem spots that i recommend inspecting the first would be the air filter.

The air filter may be clogged or dirty. this can decrease the power out put and it can also affect the idle as well. the next check point would be inspecting the spark plugs. make sue the plugs are correctly gapped and are not fouled in anyway. if they are fouled or incorrectly gapped, this will cause the symptoms you are experiencing at this time. Another check point will be the wire set(spark plug wires). make sure the wires are in good condition. remove all wires from the plugs and look inside the wire head t inspect the contacts. they should be nice and clean.if the wires are worn, replace them accordingly. the final check point will be checking the PCV valve. this valve is located Under hood, center, upper engine area, top of engine, mounted in valve cover. the testing procedure to be preformed on this specific device is stated below.


PCV VALVE TESTING PROCEDURE---

# Check the ventilation hoses and lines for leaks or clogging. Clean or replace as necessary.

# Locate the PCV valve in the cylinder head cover and remove it by pulling it upward.

# Blow into the crankcase end of the valve. There should be free passage of air through the valve.

# Blow into the intake manifold end of the valve. There should be little or no passage of air through the valve.

# If the PCV valve failed either of the preceding two checks, it will require replacement.


You will find the problem for you erratic or low idle in the areas above.

Please rate and god bless:)

Posted on Apr 27, 2009

canbruce75
  • 1776 Answers

SOURCE: 2006 ford taurus sel ++ rough idle

If the check engine light is on, take the car to an autoparts store and have them scan the computer for any faulty codes that it has stored. Most parts stores will do the scan for free. It sounds like a faulty idle air control valve, but getting the codes will identify what faults the computer has noted and in what systems. Hope this helped and best wishes.

Posted on Aug 10, 2009

  • 134 Answers

SOURCE: idles real high at times

try replacing the idle control valve.

Posted on Oct 08, 2009

miket756
  • 2702 Answers

SOURCE: Ford Taurus: rough idle in drive and reverse

it could be that the tick over is two slow in brive,,,
set it up to tickover at 850,,950 rpm (in drive)
or it could be a gear box fult like the drive plate has a crack in it,,,letting the torque converter slap about,,,
chech tick over first,,, bont adjust tick over in gear unless the brakes are held hard on,,,

Posted on Oct 31, 2009

  • 215 Answers

SOURCE: 1998 ford ranger idles rough, high then low

does car have engine codes? sounds like your idle air controle valve is sticking. or possible egr problem

Posted on Feb 18, 2010

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1 Answer

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There are few help links with solutions to troubleshoot such idle issues.

I suggest you refer the link below and follow its troubleshooting details:------

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While stop engine idles like cylinder missing?

http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html

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These details will help.

Thanks.

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