my89xj

Pretty sure I'm the first one, my xj is running to cold even when its only 50 degrees outside. I'll start it early to warm up but once I start going it ,cools down to much, and I don't want to turn the heat on since it will take heat from the engine. I do have a 180 thermostat which ill probably replace with the stock 195. It's an 89 renix.

Xj88

How cold is too cold?

my89xj

Between 120 and 160

RTorrez1

You might want to put in the recommended t-stat which is 195. give that a try.

letsgomuddin

X2 on a new thermostat, sounds like yours may be stuck open partway

my89xj

Should I get one from the stealership?

sthon

Have you verified your temps? 120* - 160* with a 180* thermostat doesn't make sense...

Oh and ESAD! I can't keep mine under 220*

my89xj

Lol

my89xj

The other thing is once it warms up it runs 180* 210*

crfrider

180 to 210 is fine? what are u talking about ur temps to low on startup? should be cold on first stratup. confused by this thread after u posted this^^^^

my89xj

Once it hits 50 outside it just won't run warm enough, I've almost considered putting cardboard in front of my radiator.

djb383

Does the heater get hot? If so, maybe your gauge is wacked. We run a 180 stat year round, the heater will make u sweat.

sthon

Again we're confused... So you're saying right now with the current temps it runs between 180 and 210. But once the ambient temp gets to around 50* it won't go above 120 - 160?

If that is the case putting in a 195* thermostat would help. I'm guessing yours is stuck open, or opens right around 160*. Blocking your radiator with cardboard would probably help but it's better to just fix the problem.

dukebutte

Sounds like you're over thinking this replace with OEM always which is the 195*

cruiser54

Yes!! Part number 83501426. You won't be sorry.