Oil pressure

Tiny
SHRIVER4356
  • MEMBER
  • JEEP CHEROKEE
Ive changed the oil pump and oil and filter and when it is first started oil pressure gauge reads 40 to 45 psi and after it warms up the oil pressure drops to 0 and check gauges light comes on for about thirty seconds then goes off and then rises to about 30 to 35 psi. When the oil pressure drops the lifters start tapping. Oil sending unit? 1996 jeep grand cherokee limited with the 5.2 v8 318
Tuesday, November 6th, 2007 AT 8:32 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Oil sending unit? Tells you the pressure. Your lifters are tapping-install an oil pressure gauge and check the actual oil pressure. Did you prime the oil pump? Did you do an engine flush? Its sounds as though its clogging up. The OSU again tells you the oil pressure but the oil pump pressure relief valve is the one that controls the pressure. Maybe also could be worned engine bearings.
Was this
answer
helpful?
Yes
No
Wednesday, November 7th, 2007 AT 12:19 PM

Please login or register to post a reply.

Related Instrument Cluster Gauge Oil Pressure Content

VIEW MORE