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#1640490 09/05/06 01:12 AM
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I have a 98 svt contour and when the heat or air condition is on there is a miss does anyone have any idea what is causing this.

Thanks Vickie

#1640491 09/05/06 01:17 AM
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Welcome . There is a good chance the IAC valve needs to be cleaned/changed. How many miles on the car?

Edit. IAC valve how to in UIM/LIM rebuild with pics in Duratec Maintenance FAQ

And to confirm if it is not the a/c compressor or pulley, does it happen when the heat is on and the switch is turned to Panel or Floor. Note that with the heat on, and switch turned to FLR/DEF or DEF, the A/C also comes on to help dehumidify the interior.


"Always do the cheap and easy ones first." 1996 V6 ATX 96K miles
#1640492 09/05/06 01:39 AM
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THe car has 80,000 miles on it.I know the miss is in it when the defrost,flr defrost is on it is also in it when you run the air conditioner,I will have to double check to see if it is in it when it is on floor or panel.

98 svt contour
2000 mustang
94 ranger
97 villager
2-80 pintos
91 super coupe
91 exploer
80 fairmont

#1640493 09/05/06 01:50 AM
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Originally posted by Vickie:
...
98 svt contour
2000 mustang
94 ranger
97 villager
2-80 pintos
91 super coupe
91 exploer
80 fairmont




Previously owned vehicles (with exception of SVT) or small used car lot?


"Always do the cheap and easy ones first." 1996 V6 ATX 96K miles
#1640494 09/05/06 01:55 AM
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Still own all cars listed.Not a small car lot just avid ford people that collects ford cars.The pinto's and fairmont are project cars with the motor out of the supercoupe going in one of the pinto's.

#1640495 09/05/06 01:58 AM
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There is no problem with the car idle it just has the miss when driving it.

#1640496 09/05/06 02:07 AM
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Is the check engine light on? If yes, post the codes. When was the last time any of these items were changed (fuel filter, air filter, plugs, sp wires, coil)/cleaned (MAF sensor, throttle body)?


"Always do the cheap and easy ones first." 1996 V6 ATX 96K miles
#1640497 09/05/06 02:15 AM
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Had it checked at ford dealer ship and they said that there were 2 o2 sensors bad,don't know when any of the other items were cleaned or replaced just had car around 2 months.

#1640498 09/05/06 02:17 AM
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Drive to Autozone or Advance Auto tomorrow. Have them read the codes (free service) and then post the exact codes here. This may well bring you closer to a solution.


"Always do the cheap and easy ones first." 1996 V6 ATX 96K miles
#1640499 09/05/06 02:22 AM
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Thanks for all the info,will get back with you in a day or 2.

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