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1997 Ford Taurus Repair Question


Topics covered: Sensor, Spark, Battery.
Mileage: 169,000 miles.

Asked on March 20, 2011

Rough idle

have a 1997 ford taurus sho i was wondering what could be causing a rough idle ,i have changed plugs did visual inspection of coil packs so i know that could still be problem but i have changed iac valve also still jumps
i was wondering if its either one of these pcv valve ,fuel filter ,or gas cap when i fill up my gas cap feels loose there is no clicking or anything when i put it back on plz help
Avatar Asked by kevinloken

Answer

Replied on March 20, 2011

http://www.2carpros.com/articles/engine-misfires-or-runs-rough

1.Defective spark plugs
2.Inadequate spark/coil,defective spark plug wire.
3.Lack of compression
4.False air leakage.
5.Faulty fuel injectors.
6.Insufficient fuel pressure.
7.Contaminated fuel.
8.EGR valve that is leaking.
9.Oxygen sensors.
10.Throttle position sensor.
11.Manifold absolute pressure sensor
12.Mass Airflow Sensor
13.Idle air control valve

Note: If it doesn't apply disregard it-

Tiny Answered by rasmataz
68 questions asked
Replied on March 20, 2011

Go to this link: http://www.2carpros.com/articles/engine-misfires-or-runs-rough

1.Defective spark plugs
2.Inadequate spark/coil,defective spark plug wire.
3.Lack of compression
4.False air leakage.
5.Faulty fuel injectors.
6.Insufficient fuel pressure.
7.Contaminated fuel.
8.EGR valve that is leaking.
9.Oxygen sensors.
10.Throttle position sensor.
11.Manifold absolute pressure sensor
12.Mass Airflow Sensor
13.Idle air control valve

Note: If it doesn't apply disregard it-

Tiny Answered by rasmataz
68 questions asked
Replied on March 20, 2011

so it could be any one of those things u mention ?

Tiny Response from kevinloken
35 questions asked

Replied on March 20, 2011

Do you hav a check engine light? Could be check and test

Tiny Answered by rasmataz
68 questions asked
Replied on March 21, 2011

no check engine light it just jumps from 600 rpm to 500 back up to 600 while im at a stop light and sometimes it chugg's when im driving but its just weird how the lights dim or surge with the idle

Tiny Response from kevinloken
35 questions asked
Replied on March 21, 2011

Clean the idle air control valve, EGR/PCV valves and clean the MAF sensor with an electronic cleaner CRC

Tiny Answered by rasmataz
68 questions asked

Replied on March 21, 2011

oh ok i recently bought a new iac valve and didnt notice anything different, how do i clean egr valve and maf sensor ?

Tiny Response from kevinloken
35 questions asked
Replied on March 21, 2011

Carb cleaner on the EGR valve/port and for the MAF sensor use an electronic cleaner CRC-check Radio Shack or Electronic shops

Tiny Answered by rasmataz
68 questions asked
Replied on March 21, 2011

so if there is something wrong with one of those parts would that cause lights and all that fun stuff to dim in and out with idle or would that prob be battery cause i put in new alternator in sept but i did notice i think battery not right size cause that clamp which holds battery in place is on where its supposed to be but i can lift battery right out of there ?

Tiny Response from kevinloken
35 questions asked