Operating temperature - JeepForum.com
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post #1 of 5 Old 03-27-2002, 11:39 AM Thread Starter
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Operating temperature

Can't seem to find anywhere that tells the
correct engine operating temp for a 4cyl
95. Anyone know? thanks.

'95 YJ 2.5L Hardtop 30" rubber
grill guard; 5spd tranny
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post #2 of 5 Old 03-27-2002, 12:40 PM
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it dosen't really matter to much on the temp. You just want it to get to above 180. anything below and the engin will rust on the inside. best running temps would be from 180-about 240 once you get above 240 your getting close to the boiling point. But you can get a higher pressure radiator cap and you or ok. but anywhere between 180-240

Daniel Mclay

93 wrangler 8 inch SOA SRS suspention lift 35/12.50 Mt. efi 350 700r4 tranny np 205 t case dana 44s front and rear. lots of extras.
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post #3 of 5 Old 03-28-2002, 07:56 AM
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I'm not sure about that. I always thought my '94 was running cool, so I changed the thermostat. The parts manual says the factory recommendation was something like 160. Still not sure, I checked the sending unit out and it's fine. Probably should have called the dealer, but figured it was better to be a little cool than too hot. It runs fine, and the heater worked well this winter (first winter with it). The rust issue seems valid though. Your best bet is to call a Jeep service department.

Turbocharged 4.0, 35" Kevlars, 33 spline Detroit D44, 4.88s, heavy foot.

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post #4 of 5 Old 03-28-2002, 02:12 PM
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Hey as long as it's not over heating don't worry!
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post #5 of 5 Old 03-28-2002, 08:06 PM
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Normal operating temp of any automobile motor is about 185 to 220 (unless they changed the rules on me!)
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