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Previous Thread Next Thread Print Thread Rate Thread 1990 gen1 Tach Needle jumping #1072680 06/27/14 03:21 AM Joined: May 2010 Posts: 50 Lower Arkansas C crazyhal OP Getting the Wheeling Fever when i turn ignition switch to run my tach needle jumps and there are clicking sounds coming from pass side kick panel. fuel pump also runs without cranking. sometimes when i crank over engine tach needle no move and truck wont start. 1990 SWB 3.0 Re: 1990 gen1 Tach Needle jumping [Re: crazyhal] #1072681 06/27/14 06:03 AM Joined: Jan 2001 Posts: 13,649 Helen , GA fasteddy Web Wheeler sounds like the control relay is going bad. Fuel pump should do a short run at switch on, then stop. Should run at all times while cranking. runs under ecu conrol in ign run as long as ecu sees spark. Not responsible for advice not taken... 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

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