1997 Plymouth Grand Voyager IAC problems

Tiny
SNOOPYCOOL75
  • MEMBER
  • 1997 CHRYSLER GRAND VOYAGER
1997 Plymouth Grand Voyager 3.3L

My van intermittently dies on idle (park/neutral, ac on and when I brake). I consulted a Chilton manual and found that the idle air control motor was most likely the problem (I am no mechanic - my dad is but he's 800 miles away). Dad seems to agree based on the conditions alone. I pulled the wire harness out of the motor and found that one of the hard plastic dividers between the prongs/connectors is bent into a prong/connector (wire A, I believe - I don't know what color but it is the leftmost wire when connected into the motor). So now I don't know how to get a new wire harness save going to a junkyard and pulling one (I'm 7 months pregnant and just don't want to do that - but I'd rather do that than paying Chrysler a boatload of $ for one - I'm assuming I can even get this part). I've tried bending back the piece of plastic but to no avail.

Anyway, can you tell me how to decide if this is the only problem or if the actual motor is going out too (or if I've missed the boat and it could be something totally different - I had the EGR valve and solenoid replaced thinking it was that, but of course now I know it wasn't)? Also, can you tell me what this wire actually inputs into the motor? Thank you.
Friday, May 4th, 2007 AT 5:55 AM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
A bad idle air bypass motor or idle speed control motor. If these devices fail to provide the correct idle speed, the engine may die. Sometimes the fault is in the PCM or the inputs to the PCM.

I would say take it out and clean it, and for the harness get one @ the junkyard dogs and splice it. Make sure its an identical wiring.
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Friday, May 4th, 2007 AT 6:41 AM
Tiny
SNOOPYCOOL75
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Can you tell me how to safely clean the valve? What do I need to use to do it?
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Friday, May 4th, 2007 AT 3:31 PM
Tiny
RASMATAZ
  • MECHANIC
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I just use a simple Carb cleaner and brush and use compress air to blow it out.
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Friday, May 4th, 2007 AT 5:14 PM

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