1990 Dodge PU 318 EFI

From : rikker01

Q: i was taking my truck on the freeway which i havent done in about 6 months and i experienced a sudden loss of oil pressure and the oil light came on. i parked the truck for the night and started it up and i had oil pressure for about 1 minute before it went to zero. i also checked the oil level and it registered well above the full mark. before i begin diging in to the engine does anyone have an idea what the problem would be i was thinking rear main seal. .

Replies:

From : nlhomer

i have a 95dak w/318.mine did same thing and it was the oil pressure sending unit.it is located on the back of the engine close to the distributor. *cbhvac* stephen@screweduponpurpose@carolinabreezehvac.com wrote in i was taking my truck on the freeway which i havent done in about 6 months and i experienced a sudden loss of oil pressure and the oil light came on. i parked the truck for the night and started it up and i had oil pressure for about 1 minute before it went to zero. i also checked the oil level and it registered well above the full mark. before i begin diging in to the engine does anyone have an idea what the problem would be i was thinking rear main seal. way above the full mark oil foaming..when you were on the hiway and got a feeling your mains and rod bearings are toast..but thats pure speculation since you roil pressure sender might also be bad.. .

From : lakeland 108c

nlhomer wrote i have a 95dak w/318.mine did same thing and it was the oil pressure sending unit.it is located on the back of the engine close to the distributor. from what my mechanic tells me its common. happened to my 1989 dodge a couple years ago. cheap and easy to fix. --- outgoing mail is certified virus free. checked by avg anti-virus system http//www.grisoft.com. version 6.0.708 / virus database 464 - release date 6/18/2004 .

From : big al

i was taking my truck on the freeway which i havent done in about 6 months and i experienced a sudden loss of oil pressure and the oil light came on. i parked the truck for the night and started it up and i had oil pressure for about 1 minute before it went to zero. i also checked the oil level and it registered well above the full mark. before i begin diging in to the engine does anyone have an idea what the problem would be i was thinking rear main seal. i would remove the oil pressure sender next to the base of the distributor. careful not to break the lock tab on the connector. then rig up a mechanical gauge and see if it really has oil pressure. why would the oil be way above the full mark that part does not make sense. it could make sense if you overfilled it or water is getting in the oil. what did the oil look like what ever it is its not the rear main seal... al .

From : bonnie ryan

i was taking my truck on the freeway which i havent done in about 6 months and i experienced a sudden loss of oil pressure and the oil light came on. i parked the truck for the night and started it up and i had oil pressure for about 1 minute before it went to zero. i also checked the oil level and it registered well above the full mark. before i begin diging in to the engine does anyone have an idea what the problem would be i was thinking rear main seal. oil pump went bad pull 1 valve cover start engine watch oil come to rockers no oil bad pump .

From : cbhvac stephen

i was taking my truck on the freeway which i havent done in about 6 months and i experienced a sudden loss of oil pressure and the oil light came on. i parked the truck for the night and started it up and i had oil pressure for about 1 minute before it went to zero. i also checked the oil level and it registered well above the full mark. before i begin diging in to the engine does anyone have an idea what the problem would be i was thinking rear main seal. way above the full mark oil foaming..when you were on the hiway and got a feeling your mains and rod bearings are toast..but thats pure speculation since you roil pressure sender might also be bad.. .