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Previous Thread Next Thread Print Thread Rate Thread dumb nuby Q (rough 3.0 idle) #845531 11/05/07 05:53 PM Joined: Jun 2007 Posts: 44 MSP MN USA D daan OP Getting the Wheeling Fever YES I READ THE FAQ first! Time to add my dumb question. I have a 91, 3.0/auto, 155K truck. It idles roughly, and all the lights flicker(Dash, headlights,dome lights etc). The PO replaced the "Throttle Position Sensor" and all the tuneup stuff (I have reciepts anyway...) All the belts and hoses were done, too...it still idles funny. What's next? I THINK the low idle and the flickering is related since the lights are fine once I'm actually driving. Thank you all for the good forum. Last edited by daan; 11/05/07 05:58 PM. Re: dumb nuby Q (rough 3.0 idle) [Re: daan] #845532 11/05/07 06:24 PM Joined: May 2005 Posts: 927 San Jose, CA 8 89IsMine Rock Warrior I would check the IAC (also known as the ISC or Idle Speed Controller) first. There's a recent thread about this, and the Factory Service Manual gives the procedure to check the coils with a VOM. The flickering lights are most likely due to the alternator not putting out a steady voltage due to your low idle rpms. That's where I'd start. I'm sure others with much more knowledge than me will chime in. Let us know how you get on! <img src="/forums/images/graemlins/kewl.gif" alt="" /> Eric W. '89 Dodge Raider -- 3.0L V6, MT, SWB Re: dumb nuby Q (rough 3.0 idle) [Re: 89IsMine] #845533 11/06/07 12:01 AM Joined: Mar 2007 Posts: 950 Darts Point, Mississippi - USA G generation_one Rock Warrior Quote The flickering lights are most likely due to the alternator not putting out a steady voltage could very well be that or bad connections...look at the alrernator, I mean charging circuit, soon for sure Last edited by generation_one; 11/06/07 12:03 AM. 1989 5 door montero 3.0 auto stock original Japanese about 200k miles Moderated by  4x4Wire, Macka, Mudraider, off-roader, PHIL_, rxinhed  Hop To Mitsubishi Forums ------  Mitsubishi 4x4 and SUV Tech  Mitsubishi Diesels  Mitsubishi ArchiveToyota Forums ------  Early Toyota Trucks  Toyota 4Runner, FJ Cruiser &...  T100 & Tundra Forum  Tacoma Forum  Toyota Tech ArchiveJeep Forums ------  Jeep Talk  Jeep TechIsuzu Forums ------  Isuzu 4x4 & SUV Talk  Isuzu 4x4 & SUV Tech  Isuzu DieselsKia Forums ------  Kia Talk  Kia Sportage & Sorento TechOff Topic Chat ------  4x4 Gallery  Off-Topic Chat  Recreational Access & Land ...  Politics4xForums ------  Outdoor Gear  General 4x4 Discussion  Tools and Fabrication  General Communications  Amateur Radio  GPS and MapsParts Bin ------  Private Party - Garage Sale  Private Party - Items wanted  Vendors, Hot Deals, Group Buys4x4Wire Back Yard ------  Suzuki Forum  AZ Crawler Crew  Cal-Nev Crew  General Ford 4x4 & SUV Forum  General Dodge 4x4 & SUV Forum  General Chevy 4x4 & SUV ForumFeedback & Testing ------  Problems, Questions, Suggestions4x4Wire Staff ------  Forum Moderators  Problem Threads Print Thread Switch to Threaded Mode 5 Excellent 4 Good 3 Average 2 Bad 1 Terrible View Profile Private Message Follow User Forum Posts View Profile Private Message Follow User Forum Posts View Profile Private Message Follow User Forum Posts

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