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2002 ford ranger 3.0 misfire Sign up here! Search this forum this category all forums for All words Any words Whole Phrase (search options) Auto Repair Home>> Automotive Repair>> Engine Troubleshooting Kustrajg New User Mar 16, 2016, 7:46 AM Post #1 of 3 (12150 views) 2002 ford ranger 3.0 misfire Sign In Had a misfire in cylinder 1, replaced plugs and wires and fuel injector. Did not solve. Replaced ignition coil. Misfire on 1 stopped. Now cylinder 2 and 3 are misfiring. Double checked the wires, they are hooked up properly. Hammer Time Ultimate Carjunky / Moderator Mar 16, 2016, 1:43 PM Post #2 of 3 (10027 views) Re: 2002 ford ranger 3.0 misfire Sign In You're going to have to test for the coil trigger coming out of the computer using either a noid light or a lab scope. I have seen quite a few bad PCMs with bad coil drivers on the 3.0 engine. If you do find that problem, make sure you change the coils also. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional. Discretesignals Ultimate Carjunky / Moderator Mar 16, 2016, 6:14 PM Post #3 of 3 (7932 views) Re: 2002 ford ranger 3.0 misfire Sign In Did you check to see if you had spark on #2 and #3 using an adjustable spark tester? Maybe you got a bum coil? Do you have any trouble codes related to coil primary circuit? If the coil drivers for #2 and #3 went bad at the same time, the truck wouldn't even run. Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved. (This post was edited by Discretesignals on Mar 16, 2016, 6:21 PM)   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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