Thermostat Location for 89 Comanche -
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post #1 of 3 Old 03-23-2008, 01:47 PM Thread Starter
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Location: canada
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Thermostat Location for 89 Comanche

I have an 89 jeep comanche and can not locate where the thermostat is. I am a beginner at this so please help.

Its a 4 cylinder engine automatic.

if there is any other info needed i will apply when asked thanks in advance

Happy Easter as well

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post #2 of 3 Old 03-23-2008, 07:21 PM
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1993 ZJ 
Join Date: Jul 2007
Location: washington
Posts: 97
follow the upper radiator hose and you will see it going to a housing, unbolt the 2 bolts and its under there, when you picking up a thermostat get a haynes manual, they show how to do the basic maintenance

93' ZJ 4.0l 4x4 auto, trail rig, 6 kc's, green and gray, 3.73 swap, 32x11.50 bfg mudd terrain
89' comanche, 2.5L 80k original miles, single stage paint- sold
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post #3 of 3 Old 03-24-2008, 10:14 PM
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1987 MJ Comanche 
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Location: NW Arkansas
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Yes you can follow the large top radiator hose out of the radiator, the housing should be located on the engine heads right at the front above your belt.

'01 XJ Sport, 4.0 with NV3550, 4x4, Up Country. Added: electric fan conversion, overhead console, and TUPY head (@%&$^#!).
'87 MJ shortbed, no rust! - Restoring using best parts from '87, '89, '96, '01 MJ's/XJ's. Black with chrome, Up Country, D44, NV3550, fog lights, roll bar.
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