Is this normal
#1
Is this normal
Ok so today my oil psi gauge started to fluctuate from 35-10 at stop lights. It stayed at a steady 45 while driving. Can this be a bad sender or something else?
#6
It runs great for 274,000 except some ticks and other noises that iv been told are normal to. I'm new to the jeep world so I guess there's a lot I need to get use to with these 4.0s.
#7
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Year: 1995
Model: Cherokee
Engine: 4.0L HO
Factory spec says a min of 13psi at hot idle, but the gauge isn't very accurate so if it is around 10psi you should be fine. If you are running a Fram (or other cheap / "off-brand") filter get rid of it, those things are junk and known for causing pressure issues. Wix/Napa Gold, Purolator, Motorcraft, Baldwin, Bosch, Mobil 1, etc. are all good brands of filters. If you have a 91 or newer you can also run an "oversized" filter (Motorcraft FL-1A, Purolator PL30001, WIX 51515/Napa 1515, etc.)which increases filter area and slightly increases oil capacity (aprox. 1/2 qt.).
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#8
We'll I am running a fram filter at the moment. As soon as I cash my check I'm picking up a good filter and some rotella t5 10-30. I was told to use rotella t6 5-40 but I don't want to run synthetic and I want to stick with what the engine calls for.
#9
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Year: 2004
Model: Grand Cherokee
Engine: 2000 4.0
[QUOTE=dmill89;2803707
Factory spec says a min of 13psi at hot idle, .[/QUOTE]
That factory spec is for an engine in reasonably good condition...and not an engine with 300,000 miles. On a tired engine low pressure at idle is not uncommon. As long as it comes up with rpm all is well.
Factory spec says a min of 13psi at hot idle, .[/QUOTE]
That factory spec is for an engine in reasonably good condition...and not an engine with 300,000 miles. On a tired engine low pressure at idle is not uncommon. As long as it comes up with rpm all is well.
#10
Well it's never dropped below the 10psi mark on the stock gauge at idle and alway comes right up between the 40 and 50 mark under throttle. I thinking of getting a good after market gauge it should be more accrued then the stock one. I'm thinking of getting one with a digital read out.
#11
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Year: 1995
Model: Cherokee
Engine: 4.0L HO
Well it's never dropped below the 10psi mark on the stock gauge at idle and alway comes right up between the 40 and 50 mark under throttle. I thinking of getting a good after market gauge it should be more accrued then the stock one. I'm thinking of getting one with a digital read out.
#12
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Year: 2004
Model: Grand Cherokee
Engine: 2000 4.0
Well it's never dropped below the 10psi mark on the stock gauge at idle and alway comes right up between the 40 and 50 mark under throttle. I thinking of getting a good after market gauge it should be more accrued then the stock one. I'm thinking of getting one with a digital read out.
#13
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Year: 1999
Model: Cherokee
Engine: 4.0
Don't get too obsessed over oil pressure...it is the most mis-understood function on an engine with more opinions and myths than you can shake a stick at. This is the very reason Jeep eliminated oil pressure gauges starting in 2004 and up till now. Your pressure is fine...enjoy your ride!
#15
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Well it's never dropped below the 10psi mark on the stock gauge at idle and alway comes right up between the 40 and 50 mark under throttle. I thinking of getting a good after market gauge it should be more accrued then the stock one. I'm thinking of getting one with a digital read out.
BTW, what year is your Jeep?