Question about 1992 Ford Ranger
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Posted on Jan 02, 2017
SOURCE: rough running, erratic spark
Run a compression test on the cylinders.If reading is low on any drop a little engine oil into the pot. If compression rises you have compession ring problems. Remove all plugs before you try this and place leads away from engine.
Posted on Mar 04, 2009
Have you checked for spark on all 8 plugs? Unplug the exhaust side coil pack and run the engine. Does it run on all 4 cylinders?
Posted on May 27, 2009
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