Question about Isuzu Trooper
Most likely the connector, but could be the harness. Sensitivity to temp indicates a connector pin that is slipping back in the connector. Check the connector at the injector and also at the computer. Check to see if the wire is pushed fully into the back of the connector.
Posted on Jun 06, 2017
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Posted on Jan 02, 2017
SOURCE: misfire and rough idle
It may be the Ignition module. This is the little thin circuit card that tells the Coils to fire. Trace the small electrical wire from the 1,3 coil back to this module.
Posted on Dec 21, 2007
SOURCE: 99 buick Lesabre
hey thanks for bringing me up to speed. ive been working on many other problems but with your great explanation i remember.
we need to check the compression on that cyl. and compare it to the compression on 2 other cylinders your choice.
but before you do this get a can of carb cleaner . and with the car idling spray around the intake manifold in the area of #6 cyl. what we are looking for is a small vacuum leak that would also act like this. with the engine idling and spraying around the intake the engines idle sould not change and if it does when you spray you have an intake leaking.
let me know how it turns out.
Posted on Sep 23, 2008
I would also check the front pulley as this is what is used by the crank angle sensor to tell the computer when to fire which coil pack .If the sensor or pulley is damaged it can cause random or continuous cylinder misfires.
Make sure the pulley is tight on the crankshaft at that the rubber in between the inner and outer parts of the pulley is not damaged or slipping.also check for any signs of rub damage on the back of the pulley.When the aircon compressor springs into action it places extra load on the crankshaft pulley.Hope you follow.
Let me know what you see.
Hope this helps.......
Posted on Jul 21, 2009
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