I have a 99 GMC safary i went to wash the motor and tried to start it back and i hear explotion in the back of the van know it wont start does anyone know what happened ? and how to fix the problem?
It backfired because you got ignition parts wet.
Let it dry out. Next time cover the ignition parts before washing the engine. HTH. -Jim
Wash engine while it's warm and be careful not to spray directly on electrical components. Covering electrical components up is a good idea. A warm engine will dry out quicker than a cold engine. Not a good idea to wash a hot engine.
yep they are all right on all accounts. The old safaris were terrible with damp weather and you adding water directly to the mix just made it jump spark off every metal surface attached to the spark plug wires. If the van don't start after this i recommend changing all the spark plugs distributor cap and rotor and you should be right as rain. Also if you can find sleeves for the spark plug wires your van will perform better during the winter and damp days.
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