04 6.0L oil pressure drop - Ford Powerstroke Diesel Forum
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post #1 of 6 Old 01-30-2011, 11:42 AM Thread Starter
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Question 04 6.0L oil pressure drop

just bought an 04 f250 with 94,000 miles on it. it is my first diesel so i dont know much about them. my oil pressure gauge started dropping when my truck gets below 20mph or i let off the gas for 10 seconds or so. also the oil pressure gauge drops when in park. the oil pressure gauge goes back up to its normal position whenever i give it a little gas. anyone know what i should do?
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post #2 of 6 Old 01-30-2011, 11:51 AM
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replace your oil pressure switch located behind your oil filter housing, it is a black one pin connector, make sure you clean the connector, and it is a 1 1/16 deep socket that fits over it.
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post #3 of 6 Old 01-30-2011, 11:55 AM
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replace your oil pressure switch, it is a common problem on these engines, it is located behind your oil filter housing. It is a 1 1/16 inch deep socket that fits over the switch, it is the one pin connector
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post #4 of 6 Old 02-03-2011, 03:36 PM Thread Starter
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thank you. is there a specific brand you would recommend?
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post #5 of 6 Old 02-03-2011, 03:44 PM
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Originally Posted by brandan250 View Post
thank you. is there a specific brand you would recommend?
It's probably a Ford only part. I would use OEM.

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post #6 of 6 Old 12-27-2015, 02:43 PM
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Mine is doing the same thing. I cleaned the connector with carb cleaner and replaced the SU. Still doing the same thing. Any suggestions for what is next?
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