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1996 gmc no spark Sign up here! Search this forum this category all forums for All words Any words Whole Phrase (search options) Auto Repair Home>> Truck Repair>> Truck Repair Advice nugget New User Jun 30, 2013, 5:59 PM Post #1 of 4 (2213 views) 1996 gmc no spark Sign In 1996 gmc 5.7 turns over but no spark. ICM tested OK, replaced coil, replaced CPS, power to ICM, but still no spark ?????? Discretesignals Ultimate Carjunky / Moderator Jun 30, 2013, 6:17 PM Post #2 of 4 (2201 views) Re: 1996 gmc no spark Sign In Where are you checking for spark at? Coil or plugs? Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved. nugget New User Jun 30, 2013, 6:29 PM Post #3 of 4 (2196 views) Re: 1996 gmc no spark Sign In both Discretesignals Ultimate Carjunky / Moderator Jun 30, 2013, 6:52 PM Post #4 of 4 (2186 views) Re: 1996 gmc no spark Sign In Trouble codes stored in the PCM? Do you have access to a scan tool that can read data stream information? If so, you can look at the RPM value while cranking to see if it shows RPM speed. If you have RPM showing, then you could do a ignition module bypass test to see if you can get the coil to fire. That would eliminate igniter, coil and power/ground to the coil and igniter. Then you would be left with the IC trigger circuit after verifying injector activity. 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 Jun 30, 2013, 6:58 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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