92 Jeep Wrangler little heat

BROOKLYNKID

MEMBER
1992 JEEP WRANGLER

Hi,

new to the site. I have a 92 wrangler 6 cylinder. It blows luke warm heat at best. Tempature gauge is below 100 degrees. Is the lack of heat the heater core or thermostat? Also the vehicle has AC but it doesnt work either only blow outside temp air.
Any advice to trouble shoot
thanks Brklynkid

3 Replies

SERVICE WRITER

MECHANIC
9,123 POSTS

Regarding heat:
IS coolant full? The first area to get starved is the heater core when the fluid drops.

Regarding A/C:
MAy be low on freon or have a leak. This system originally came with R12, which is very hard to get and expensive when you find it. Either conver to R134a or leave it alone. A/C can be a real heartbreak. Unless you really need it, and are prepare for the potential of spending a few thousand dollars, I wouldn't touch it.

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Sunday, January 7th, 2007 AT 7:38 AM

BROOKLYNKID

MEMBER
2 POSTS

Changed thermostat and heat improved dramatically. Filled coolant up as well. I think I will change the CTS sensor as well cause its close to the thermostat and that was stuck open. Thanks for the input
brklynkid

IS coolant full? The first area to get starved is the heater core when the fluid drops.

Regarding A/C:
MAy be low on freon or have a leak. This system originally came with R12, which is very hard to get and expensive when you find it. Either conver to R134a or leave it alone. A/C can be a real heartbreak. Unless you really need it, and are prepare for the potential of spending a few thousand dollars, I wouldn't touch it.[/Quote]

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Sunday, January 7th, 2007 AT 6:56 PM

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