Question about GMC Jimmy
Let me get this stright you have replaced the coil and the electronic ignition the thing on the coil with the cooling fins on it. And you still have no spark CORRECT . I need to look at may manuals im vary formilar with this engine and i will get back to you in a little while . A nd if you can tell me anything eles it would be helpful about how this problem started so one fine day you went to start it up and What happened give more and then i can give you more
Posted on Mar 27, 2011
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Posted on Jan 02, 2017
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Crankshaft reluctor ring.
Camshaft position sensor.
Ignition control module.
4 separate ignition coils.
Eight spark plug wires and conduit.
Eight spark plugs.
Powertrain Control Module (PCM). Camshaft Position (CMP) Sensor
Right hand rear of the engine, near the power steering pump
Oct 01, 2015 | Cars & Trucks
Ignition coil driver module
Crankshaft position (CKP) sensor
Now which part do you want to replace ?
Cap and rotor
Camshaft position sensor
Gear drive and shaft
The camshaft drives the distributor shaft which rotates providing a spark to the correct cylinder by way of the cap and rotor. The camshaft position (CMP) sensor functions much like the crankshaft sensor previously described but provides only a 1x signal to the VCM. That is, for every 2 rotations of the crankshaft, there is 1 rotation of the camshaft. Note that the camshaft position sensor will not affect driveability. The sole purpose of the camshaft position sensor is to provide the VCM with the necessary information for the misfire diagnostic trouble codes (DTCs).
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