Question about 2003 Ford Taurus

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Most common problems 2003 ford taurus

Idling up an down while driving

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Throttle position sensor needs replaced

Posted on Mar 23, 2014

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Posted on Jan 02, 2017

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  • 26 Answers

SOURCE: 2001 ford taurus will not idle down

several things can do this but most likely would be
1 TPS trottle postion sensor = replace
2 stuck butterfly valve inside the trottle body = clean out with trottle body cleaner try to get most of the black build up with a old tooth brush
3 bad trottle cable= feel the cable make sure it moves freely if not replace it

Posted on Feb 28, 2009

  • 108 Answers

SOURCE: 2003 Ford Taurus SEL Rear Window Wont come down

if window wont work with either switch the 1 on the drivers main switch or the one on rear door it may just be stuck on weather stripping and may need help down with door open have someone press switch and w/ door open put hand on inside and out of glass pushing down if it starts working agian spray weather strip with silicone spray if it does not work need to test motor to see if its getting batt voltage if not its switch if it is u need new motor

Posted on Mar 28, 2009

  • 67 Answers

SOURCE: 2003 ford taurus what to do to fix,have codes 1131 and 1151.

error codes 1131 and 1151 say : Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Lean - Bank No. 1 (1131) and 2 (1151).

a lot of causes are possible:

* Short to VPWR in the harness or HO2S
* Water in the harness connector
* Open/shorted HO2S circuit
* Corrosion or poor mating terminals and wiring
* Damaged HO2S
* Damaged PCM
* Excessive fuel pressure
* Leaking/contaminated fuel injectors
* Leaking fuel pressure regulator
* Low fuel pressure or running out of fuel
* Vapor recovery system
* Air leaks after the MAF
* Vacuum Leaks
* Improperly seated engine oil dipstick
* Leaking gasket
* Stuck EGR valve
* Leaking diaphragm or EVR
* Oil overfill
* Cam Timing
* Cylinder compression
* Exhaust leaks before or near the HO2S(s)

the idle up and down is because the electronics ist stuck in a try to compensate, overcompensate, reset cycle

Posted on May 29, 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

  • 2 Answers

SOURCE: rough idle and stalling 2003 ford taurus ses

mine did the same it was the map censor had new one installed about 125$

Posted on Dec 07, 2011

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1 Answer

2005 ford taurus doesn't idle down until warm when driving


you might have to have the programing checked and possiblly adjusted

Jan 18, 2014 | Ford Cars & Trucks

1 Answer

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,,,

Oct 31, 2009 | Ford Taurus Cars & Trucks

1 Answer

2003 Ford Taurus wants to die when coming to a stop


TRY THIS AND LET ME KNOW IF IT CORRECTS YOUR PROBLEM
Here is the most common cause of surges and stalls at stops and low erratic idle speed and rough idle, it is the idle speed control air-bypass valve and throttle valve (IAC for short), they get full of gunk over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake

Mar 17, 2009 | 2003 Ford Taurus

1 Answer

Taurus 2003 idling problems


mcdevito75 here, Sounds like the idle speed motor, Ford is known for these idle speed motors going bad, in the later stages the car races like crazy. have your repair shop check this idle speed motor and change it.

Mar 14, 2009 | 2003 Ford Taurus

1 Answer

2003 Taurus stalls at traffic lights


Here is the most common cause of surges and stalls, it is the idle speed control air-bypass valve and throttle valve, they get full of gunk over the miles and cause idle issues (stalls) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

Dec 03, 2008 | 2003 Ford Taurus

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