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Old 04-18-2006, 11:06 AM
83T/A98Blazer 83T/A98Blazer is offline
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Re: Power Drain Problem, Need Help Finding Switch

The oil pressure switch/sender is behind the intake manifold on top of the block, that's where mine is anyway and it's a 350. Does it have an oil pressure gauge? What is that reading? If it is reading normal the problem may be the fuel pump relay.You should check the relay itself and see if that is the problem also. If it has A/C you can switch the fuel pump and A/C relay, they are the same. Instead of unhooking the battery, there should be a fuse for the fuel pump, pull that instead.
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