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Discussion Starter #1
i have been having a problem with my valves raising hell when ever i put a load on the moter (pulling something or going up a hill)and it is about to drive me crazy can some tell me where to start looking for the problem. 95 bronco 5.0:shrug
 

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It's probably pre-detonation, or lousy gas.

Fill up at a different station for the next tankful, and see if that makes a difference. If not check your timing.. it's probably too far advanced so back it off until the pinging stops.
 

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ive checked timeing,tried filling up at different stations run high test,injection cleaner.nothing seems to help
 

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Have you pulled and checked the plugs?? Check your plug wires as well, make sure everything is seated properly.
 
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