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Average Coolant Temp and Oil Pressure

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Old Jul 16, 2010 | 07:22 PM
  #1  
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From: Parrish
Year: 1989
Model: Comanche
Engine: 4.0
Default Average Coolant Temp and Oil Pressure

So what re you guys running as far as temp and oil pressure. I just swapped my cluster and was just trying to figure out if my temperature especially is average.

Its summer and I live in Florida and always have the air on Max.
Average in town no highway: 215
Average highway: 220-225
Immediatly after getting of the highway: 235-240. It usually doesnt touch 240 but if it does it is only for a second.
City driving after highway: 220

Oil Pressure:
60 on cold startup
30 at idle
35-40 in town not idleing
40-50 highway

Just wondering if these are about average. The only thing I am somewhat concerned about is the temperature. I have replaced basically everything in the cooling system except the radiator and overflow bottle. Literally, Everything, So am I still running marginally hot or is that about average.
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Old Jul 16, 2010 | 07:36 PM
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From: Loomis,California
Year: 1987
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Engine: 242 inline six
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I run about 195 to 200 on temp,rarely hits 210.My oil pressure is about 60 on cold start up warn its about 20 at idle
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Old Jul 16, 2010 | 08:06 PM
  #3  
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From: Parrish
Year: 1989
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Ok so basically I am running hot. At least it isnt actually overheating like it was.
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Old Jul 16, 2010 | 08:30 PM
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From: wilkes barre PA.
Year: 96
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no your not overheating jeeps typically run at around 195-210 your really not overheating till you hit bout 240ish then i would start looking for a cause and solution
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Old Jul 16, 2010 | 09:46 PM
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From: Las Vegas, NV
Year: 1995
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Mine is constantly at 210 on the gauge. Doesn't matter whether I'm on the highway or in the city.

My oil pressure is pretty much the same as yours.
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Old Jul 16, 2010 | 10:44 PM
  #6  
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From: Parrish
Year: 1989
Model: Comanche
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Originally Posted by phillyxj570
no your not overheating jeeps typically run at around 195-210 your really not overheating till you hit bout 240ish then i would start looking for a cause and solution
I dont have the money to pay for anything right now anyway. Its just that I have basically replaced everything already. Except the radiator.
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Old Jul 16, 2010 | 10:59 PM
  #7  
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From: Gilbert AZ/Las Cruces NM
Year: 1996
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Engine: 4.0 upgraded
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well i would just drive it as long as the temp never goes above what it does.

your oil pressure is spot on!
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Old Jul 17, 2010 | 05:40 AM
  #8  
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From: Northern Vermont
Year: '89
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WOW!!! Alot of hot running XJ's on here...

Mine runs, atleast 30-40 degrees cooler, than all of yours....???
Even on 90+ days...

Oil pressure for mine is at the first 1/4 marking at operating temp.
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Old Jul 17, 2010 | 08:38 AM
  #9  
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From: Parrish
Year: 1989
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Originally Posted by 96_xj
well i would just drive it as long as the temp never goes above what it does.

your oil pressure is spot on!
Yeah that is what I am going to do.
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Old Jul 17, 2010 | 10:35 AM
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From: Houston Tx.
Year: 1995
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I run a constant 200, sometimes climbs to 220 in heavy traffic.

Oil pressure is always about 35-45
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Old Jul 17, 2010 | 10:54 AM
  #11  
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From: wilkes barre PA.
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i just replaced everything in my cooling system and i run at about 210 while driving but once i get into heavey traffic i go up to bout 230.
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Old Jul 17, 2010 | 11:19 AM
  #12  
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From: Westfield, MA
Year: 1999.
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Originally Posted by XJs-R-us
WOW!!! Alot of hot running XJ's on here...

Mine runs, atleast 30-40 degrees cooler, than all of yours....???
Even on 90+ days...

Oil pressure for mine is at the first 1/4 marking at operating temp.

what have you upgraded or changed in your cooling system to make it run so cool? cuz wouldnt 30-40 degrees cooler mean your consistantly running about 180-200 tops?
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Old Jul 17, 2010 | 05:46 PM
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I bet if you took your radiator apart, youd see 80% or more of the coolant rows clogged. Ive seen only 7 or 8 lines that could flow out of near 100 lines(2 core). with the symptoms youve described, rod that radiator out, or get a NEW one. Also the crappy plastic cap on your fill bottle should be checked for tightness.
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Old Jul 17, 2010 | 11:00 PM
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Mine has had some heat issues ..... I put a 180 degree stat in and new fulid temp secsor and had it flushed ...

and I am running about 210 + or - so I guess I am in the right range .

good to know
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Old Jul 18, 2010 | 12:25 AM
  #15  
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From: Sacramento, CA
Year: 1999
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I'm usually crusing around 210 maybe 200, california 100 degree summer in full force right now though. I'll see what fall/winter brings. My oil pressure jumps between 35-45
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