Question about GMC Cars & Trucks
If you have a Johnson bar and socket on the crank pulley bolt you should be able to turn the motor over by torquing in a clockwise direction.
If you encounter excess resistance, remove the spark plugs and try
again. If you still cannot turn the engine over it may be seized...full of water or some other bad thing like a bent rod or toasted bottom end.
Posted on Aug 12, 2017
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Posted on Jan 02, 2017
i went under for driver side then i took off passenger side wheel you also have to remove two bolts that are holding dipstick tube in place it is easy to get them from the wheel well on passenger
Posted on Nov 17, 2008
I had the same problem with my 2000 GMC Safari two years ago....drove me CRAZY!
Sometimes it would start right up...other times it just would crank and not start.
It turned out to be a cracked coil....I found it by using a spray bottle with water in it, and "misting" the engine, at night....with the engine running. (On a night when it DID start!)
It took a while, but finally the hairline crack let in some water and the electrical short showed by a spark coming out of the coil.
I replaced the coil with a new one, and it has never "not started" since.
Evidently the coil cover gets brittle and develops small, hairline cracks due to heat from the engine.
Oh...by the way....I tested the coil it showed that it was fine!....but it took the "misting" at night...in the dark...to find the spark "leaking" out.
Posted on Mar 26, 2009
SOURCE: 1994 GMC Safari Oil leaked
Check the oil filter adaptor bracket. My 1993 Safari had the same problem, and the adaptor bracket and seal were bad. Replacement fixed the leak.
Posted on Jul 08, 2009
SOURCE: 2004 GMC Safari van
DO'ES THE VAN TURN OVER ? DO'ES THE VAN HAVE THE FUEL PUMP RUN LONG ENOUGH TO BUILD FUEL PRESSURE?IF YOUR FUEL PUMP AND STARTER ARE WORKING THEN CHECK FOR FIRE TO THE PLUGS. YOU MAY NEED TO GET THE CODES READ TO FIND THE PROBLEM IF YOU HAVE FUEL AND FIRE.ONCE YOU GET THE STORED CODES,REPLACE THE SENDER THAT CAUSED THE CODE OR REPAIR THE WIREING TO IT.
Posted on Oct 06, 2009
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