Cm870 low oil pressure
07-21-2020, (Subject: Cm870 low oil pressure ) 
Post: #1
Cm870 low oil pressure
Have a 2006 cm870 w/ 647,xxx miles. It’s been showing a steady 5psi lower than average on the gauge, having trouble figuring it out. Truck seems to be running with a little less power too

At idle it’s about 10-12 psi, going down the road it never gets over 25-27psi. I run delo w/ sta lube in it and have for years. Pressure has always been good up until 6-8 weeks ago

-Changed the oil pressure sensor
-cut filter open to see if there were shavings from worn rods/mains; hardly any metal in it
-did an oil sample ~4,000 miles after changing and the sample showed minimal/normal wear
-updated oil pressure relief valve but no change

Any suggestions as far as what we should look into next? Could Oil pump be on it’s way out?
replyreply


Messages In This Thread
Cm870 low oil pressure - berrytrucking94 - 07-21-2020



NOTE: Rawze.com is not affiliated, nor endorses any of the google ads that are displayed on this website.