Question about 2000 GMC Jimmy
Is this a 4.3 V6 or ? You will have to get some carb cleaner and a rag and wipe the grease off of the timing mark plate on the timing chain cover of the front of the engine next to your harmonic balance.
Posted on Feb 01, 2010
Look in front of motor, down to where harmonic balancer is on the front of motor, should be a timing tab on timing chain cover, pull no1 plug out, hold finger on the spark plug hole or put a rag in the hole just enough to get it to blow out, bump motor over a little at a time when the no 1 piston comes up on compression stoke, it will blow rag out of hole, or it will blow out around your finger, you might have to put wrench on balancer to turn motor a little,stick screw driver in hole to see if piston is high as it will go, pull distributator cap, see if rotor button is pointing to number one plug wire on the cap, also check balancer to see if any marks are showing, somewhere on the tab on timing chain cover, if so should be in time or close, you may have to put timing light on it
Posted on Feb 01, 2010
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Posted on Jan 02, 2017
On the harmonic balancer there will be a line going across the width of the balancer, on the timing cover, at about 2 o'clock, there will be an arrow that you will line up the line to. The rotor in the distributor should then line up with the "6" on the distributor housing.
Posted on Apr 24, 2010
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