Question about 1992 Oldsmobile Bravada

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1991 gmc sierra wont start

It died in my drive way yesterday, i repaced plugs wires cap rotor coil and pick up module . I get spark and fuel but wont run

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  • zman69502 Dec 29, 2008

    checked all of the above and still nothing

  • kevin carpenter May 11, 2010

    do you know your fuel pressure? thanks kdc744

  • Anonymous Mar 15, 2014

    1991 mercedes sl500 ran fine yesterday. today it wont start only turns over. has spark, smell gas at exhaust not engine compartment, good coils, caps,rotars,plugs,wires

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There are so many things that could have caused this problem to occur. Here are some of my suggestions:

1. Blockage in the air supply to mix with the fuel. Throttle body might need cleaning

2. Compression in the cylinders might be low, probably due to large ring gaps. If you can get your hands on a compression tester to check the compression values of each cylinder, so as to ensure they are in operable range. By the way, was the vehicle smoking heavily when in operation?

3. Is your battery giving a good turn over of the engine? A weak battery can cause an engine not to start. The engine would turn over but just won't start. (Is the engine turning over when you try starting, or does the engine not responding when turning the key?)

4. Igniter in the distributor might need electrical checks to ensure proper electrical circuitry. Liaise with an auto-electrican about this.

Posted on Dec 29, 2008

  • Romel Edmondson
    Romel Edmondson Dec 29, 2008

    This might be a challenge to diagnose something without actually being there. It is quite obvious that this may likely not be a mechanical problem because the engine is not turning over. No electrical circuit may somewhat be of a defect somewhere along the line. Have you already checked your starter to make sure that it is ok? Are your dashboard lights coming on when you turn the ignition key? If so, leave the dashboard lights on. Take a screwdriver and bridge the terminals of the starter to see if the starter will turn over the engine. Update me on what happens.

  • Harry Nienaber Aug 24, 2013

    The starter turns the engine .but i cannot get fire to the sparkplugs

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