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KevinP73 KevinP73 is offline
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Join Date: Feb 2002
Location: small farm town Iowa..........at last
Posts: 6,357
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From personal and recent experience. You CANNOT run even the best aftermarket sending units in that motor. It has something to do with how the sending unit reads the low voltage in the pressure switch. Warm at idle the engine develops about 18lbs pressure. Most aftermarket switches won't read below 25lbs accurately so they give a zero reading at the gauge. Install an OEM sender, they're not really very expensive. For more peace of mind I installed a mechanical pressure gauge.
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Old 08-13-2017, 09:47 PM
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