LT1-LT4 Modifications 1993-97 Gen II Small Block V8

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Old 02-12-2009, 08:35 PM
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on my buddys trans am he is losing oil pressure when he is going down the highway its good when he stops it goes to 0 and the car dies what would make it do this
Old 02-12-2009, 08:44 PM
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Originally Posted by chrisLT1
on my buddys trans am he is losing oil pressure when he is going down the highway its good when he stops it goes to 0 and the car dies what would make it do this
So the oil pressure goes to zero first and then the car dies, or does it start to die slowly and the oil pressure follows?
Old 02-12-2009, 08:48 PM
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i thought gm had a safety net in the pcm, when i oil press goes to zip the engine shuts off.
most lt1s esp higher mileage cars will have decent oil pressure going down the road and will fall off at idle
Old 02-12-2009, 08:54 PM
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does the pressure drop down to 0 when he hits the brakes and then goes back to normal a few seconds later?



could be a bad sending unit or his oil pickup tube fell off and is laying at the bottom of the oil pan
Old 02-12-2009, 09:12 PM
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its a LT1, It could use a< Pull And Set.
Old 02-12-2009, 09:49 PM
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the car goes to 0 then it dies thats what the knock module is for right i guess the PCM is shutting it off do you know what willm cause lost oil pressure oh yeah and there is no knock before it dies
Old 02-12-2009, 10:33 PM
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oil pickup or sending unit imo

have him hit the oil pan with after he drains the oil with an open palm and listen for anything to bounce around
Old 02-12-2009, 11:00 PM
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thanx any other ideas keep em coming
Old 02-12-2009, 11:07 PM
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it's most likely one or the other imo



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