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most likely the timing is off, this affects fuel economy and other things.

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Q: 1999 Ford courier overheating when going up hill we have replaced the thermostat cleaned radiator replaced the coolant fan with a 2nd one.what else could be wrong?
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On your 1988 Toyota Camry you cleaned the fuel tank and lines and replaced the fuel pump The car will start and run for 5 minutes and then shutdown like it is fuel starved what am you missing?

change your fule pump relay and this should solve your problem


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