1997 Jeep Wrangler Oil pressure fluctuation

RAFEDADDY

MEMBER
1997 JEEP WRANGLER

Engine Mechanical problem
1997 Jeep Wrangler 4 cyl Four Wheel Drive Manual 125k miles

while driving, oil pressure reads as normal between 40 to 60, at idle drops to near 20. Oil pump is original. Do I need to look at replacing the oil pump?

1 Reply

CJ MEDEVAC

MECHANIC
11,005 POSTS

See my profile...Imma CJ Guy

As your engine wears----it does exactly as you described.

I would not worry until you hit about 15 PSI OR Stuff begins to rattle!

The local Production, Auto-Machine Shop Owner (a friend)...[We're not sleeping together, nothing like that!]........Told me that MOST engines are OK down to 4 PSI, before damage occurs!

However, I would NEVER let mine go that long!

Things that might help....Things I do....Every oil change gets a quart of OIL STABILIZER----$$$...NO OBJECT....only the best for "Mr. Jeep" and "WILLY"

'77 CJ 5 "Mr. Jeep"

'46 Willys "WILLY".....No Sissy Names for a "MANLY" VEHICLE

When you do replace your OIL PUMP----see if a HIGH VOLUME OIL PUMP IS AVAILABLE for your engine.

"Mr. Jeep" has a 258 6 cyl. (4.2L)......He has H.V. Pump (2nd engine w/ many miles).....O.P. 30 at idle.....40-60 on the move,

"WILLY" L-134 (flathead) 4 cyl....O.P. 40 at idle 50-80 on the move.....stock oil pump!

Whaddu Think?

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The Medic