Oil pressure

Asked by Sep 26, 2012 at 09:41 PM about the Jeep Grand Cherokee

Question type: Maintenance & Repair

what would be normal oil pressure for a Jeep Grand Cherokee Laredo?

7 Answers

6,435

4.0L ,318 or 360 V8?

10 out of 10 people think this is helpful.
85

I would say you have good oil pressure if the needle is in the center or just above. the pressure needle should not be all the way to the left or right.

2 out of 2 people think this is helpful.
1,245

cold, idling, most V-8s should be around 30 lbs. Hot, idling, about 20. Usually maximum on a V-8 is about 60 lbs, unless you have a high pressure or high performance oil pump installed. Then you can get 80 lbs of pressure maximum... Most V-6 and 4's average about 5 lbs less across the scale...

6 out of 6 people think this is helpful.
30

I had my oil changed at the dealership yesterday and this morningthere was two spots. I have a 2013 Jeep Grand Cherokee and the oil pressure is reading at 38 to 45. temp 171 to 181

3 out of 3 people think this is helpful.
20

If you have a 4.0 jeep engine and having oil pressure problems here what your issue is! The 4.0 cylinder head is extremely bad about cracking across the top of the head near the rocker arm towers. It allows coolant to seep over time and sludge the oil causing low oil pressure at idle around zero and higher pressure while driving. I just pulled my engine to rebuild it and the oil looked like sea weed. The machine shop I use all the time said the 4.0 heads crack all the time. I found a company the remanufactured new heads that are stronger and thicker where they crack all the time. Go to my website send me an email and I'll give you there info. bigasautorepair.com just click on contact us. Hope this helps!

1 out of 1 people think this is helpful.

My grand Cherokee 4.0 has 258,000 miles and the oil pressure is 40 at idle hot or cold and 45 at speed hot or cold. Change the oil no difference I am using Rotella 10W-40

20

Allynnc, 40 psi at idle and 45 psi while driving is a good oil pressure for the 4.0 liter Jeep Engine. My problem was my oil pressure was dropping to 0 psi at idle and the problem was coolant was seeping from the head because it was cracked, so I rebuilt the engine and it is fine now. 60 psi at idle cold and 40 psi at idle warm. I had know Idea it was a coolant and oil sludge problem until I sent the head to the machinist and he said the 4.0 heads crack because of a thin layer of cast across the top of the head. I found Titon Engines who had recast the heads and built the up in that weak area. My jeep is running and the oil pressure is better then is was before I pulled the engine and rebuilt it. Thanks

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

  • Loss of oil pressure 2 answers

    Oil pressure drops when deceleration begins.

    1996 Jeep Grand Cherokee Orvis 4WD

    -

    Maintenance & Repair

  • Engine oil pressure Sensor 3 answers

    Dear sirs, good day what would be the normal range for the engine oil pressure sensor for jeep 2014 grand Cherokee, service light is on but the oil pressure range 91-100 psi and Diagnostic refer to ...

    2014 Jeep Grand Cherokee Laredo 4WD

    -

    Maintenance & Repair

  • No oil pressure 2 answers

    Airconditionner stopped Cololing and oil pressure drôpped to 10 and some oil on GROUND? Whats can be going on

    1998 Jeep Grand Cherokee Laredo 4WD

    -

    Maintenance & Repair

  • What would cause my oil pressure to go up and down? 7 answers

    When im stopped the pressure is low but when i driving the pressure is normal or just below normal. I have a 95 JGC with the 4.0 I6.

    1995 Jeep Grand Cherokee

    -

    Maintenance & Repair

  • Oil pressure 1 answer

    What level should my oil pressure gauge be at during normal operation?

    2001 Jeep Grand Cherokee Limited 4WD

    -

    General

Grand Cherokee

Looking for a Used Grand Cherokee in your area?

CarGurus has 68,676 nationwide Grand Cherokee listings starting at $864.

ZIP:

Search Jeep Grand Cherokee Questions

Jeep Grand Cherokee Experts

#1 inuevafreak
inuevafreak
Reputation 1,950
#2 Tom Demyan
Tom Demyan
Reputation 1,760
#3 thejeepdoctor
thejeepdoctor
Reputation 1,630
View All

Related Models For Sale

Used Jeep Cherokee
347 Great Deals out of 55,335 listings starting at $2,295
Used Jeep Wrangler
392 Great Deals out of 19,081 listings starting at $3,000
Used Ford Explorer
936 Great Deals out of 73,995 listings starting at $750
Used Jeep Wrangler Unlimited
471 Great Deals out of 45,606 listings starting at $7,990
Used Dodge Durango
299 Great Deals out of 24,115 listings starting at $1,500
Used Toyota 4Runner
315 Great Deals out of 20,549 listings starting at $2,295
Used Dodge Charger
357 Great Deals out of 29,619 listings starting at $2,475
Used Chevrolet Tahoe
772 Great Deals out of 28,452 listings starting at $1,500
Used Ford F-150
2,690 Great Deals out of 212,354 listings starting at $1,000
Used Chevrolet Silverado 1500
2,290 Great Deals out of 155,163 listings starting at $1,395
Used BMW X5
428 Great Deals out of 15,270 listings starting at $2,950
Used Dodge Challenger
222 Great Deals out of 24,813 listings starting at $7,988
Used Jeep Liberty
265 Great Deals out of 8,136 listings starting at $995
Used Ford Mustang
362 Great Deals out of 44,486 listings starting at $1,000
Used Honda Accord
811 Great Deals out of 81,613 listings starting at $899