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Old September 14th, 2011, 07:13 PM   #1
Ford32191
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Default F150 302 Oil pressure issue

Well me and my buddys went boggin the other day and we were just going threw the trails my oil pressure was fine intill i hit it hard threw the mud hole and i loss all oil pressure like it wasnt even registering on my stock gauge and it starts ticking and knocking so i shut it off and its fine after it cools down all the way it goes back to normal i use 10w 30 oil and its brand new i just need some advice on this i was thinking its the oil pump or maybe the pressure switch or sending unit but idk Thanks for your time.
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Old September 14th, 2011, 08:36 PM   #2
bigblockford79
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Have you re-checked the oil level yet???? Seems like the logical thing to do since last time I checked a faulty pressure switch or sending unit would not cause an engine to knock.

If the oil level is good, then you might want to pull the distributor and make sure the pumps drive shaft didn't strip or break. While the distributor is out, manually drive the pump itself to see if it is working at all. You can use the pump shaft with a socket on the end of a drill to turn the pump, it must be turned counter-clockwise to work though (reverse on your drill). Be EXTREMELY careful not to drop anything in the hole, use tape on the socket to extension joint to keep the socket from coming off. If the pump is decent you will have a decent amount of drag against the drill while turning the shaft, for a visual picture you can pull a valve cover or the oil pressure sending unit and you will be able to see the oil being pumped.
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Old September 14th, 2011, 08:36 PM   #3
Kodiak450r
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i'm willing to bet u crushed the oil pan against the pickup tube which will restrict oil flow.
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Old September 14th, 2011, 11:39 PM   #4
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Yea the oil is all there but the engine runs fine with no knocking or ticking during city driving only when i really get on it then i have to let it cool down all the way to bring it bck to normal and when it does go out the needle will bounce back and fourth like it shuts off and on but then sometimes it just stops pretty crazy
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