check gauges light
Administrator
Joined: Apr 2010
Posts: 87,453
Likes: 4,218
From: Clayton MI
Two different problems. Need to see what codes are setting the CEL, the PCM really doesn't care about oil pressure.
Verify correct oil level, if that's good, replace the oil pressure sending unit.
Verify correct oil level, if that's good, replace the oil pressure sending unit.
Veteran
Joined: Nov 2016
Posts: 344
Likes: 0
From: Omaha NE
Has your oil pressure done this before?
The pressure senders on these trucks are known for going out at this age. But you can't tell for sure unless you get one of these tester gauges:
http://t.harborfreight.com/engine-oi....google.com%2F
Its a mechanical gauge that gives you the real oil pressure.
Or have a mechanic test it for you. The sensor isn't behind the Intake, a pain to get too. Or you could put a sender in for the fun of it and hope it fixes your problem. But that's not what I would do.
The pressure senders on these trucks are known for going out at this age. But you can't tell for sure unless you get one of these tester gauges:
http://t.harborfreight.com/engine-oi....google.com%2F
Its a mechanical gauge that gives you the real oil pressure.
Or have a mechanic test it for you. The sensor isn't behind the Intake, a pain to get too. Or you could put a sender in for the fun of it and hope it fixes your problem. But that's not what I would do.
