Question about Cars & Trucks
Pulled spark plug and turned over engine. Plug arcs to metal about every third revolution of the motor. Changed coil and same result.
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Posted on Jan 02, 2017
Not sure where you got that code but it almost sounds like you burnt a valve. Start up the engine and remove the oil cap and see if there alot if internal blow by pressure. If there is lot's of air coming out of the filler hole your have ether 1 piston ring bad, 2 burn a hole in the valve or and bent valve stem. Good luck sorry i dont have any more information on how your car is running.
Posted on Apr 06, 2009
SOURCE: 1998 Ford Explorer, 4.0 SOHC No
You are at thhe right trail what controls spark is coil pack crank sensor sparkplugs and plug wire but the most important is power . I mean 12 volt connections and ground This includes checking fuses you need a simple volt meter doesnt have to expensive or fancy just to pick up 12 volts let start with fuses in the engine juction box (there not mark to what it belongs to) make sure none are open. especially fuse 19 and 24 , next go to the crank sensor make sure the tabs are snuggly on now to the coil pack there is a red and light green wire this comes from ignition and feeds 12 volts at the coil pack measure that voltage is it 12 volts if not correct it this is from ignition switch ( you can make a tool that feed 12 volt with a wire and a fuse in series and attatch it to battery and the primary wire this is known as hot wire) next go to the ECM wiggle the wires see if that get a connection going if not go back to the ICM here are the wire you are to measure the tan light green, this is from ECM and it is pulsed it measure 5vlts to 0 volts switched then measure the tan orange the same thing 5 volts to zero,then tan white again 5vlts to zero. any one of these 5 to zero fails you fix is the ecm
Posted on Aug 21, 2011
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