i fuel economy went way down and it runns colder than normal it only gets up 2 like 180 what the H***

 

o yea its a 92 wit a 4.0

 

Where you live you?Are you running the same kinda gas in it as always?My Car gets about 3 mpg better on Chevron Gas than like Shell.

 

Ever change the thermostat before?

 

Therostat probably getting worn out running 180 probably wouldnt hurt

 

I got a 180 thermo in my '98 now, doesn't get remotely close to 210, and I got power galore, but at a price...
You WILL go thru more gas with a cooler thermo since the engine and all its sensors are not running at optimum temp...
You have to get a programmer or performance chip to take advantage of a cooler thermostat and not make the computer spaz out...

 

i live near st. louis and usually run shell fuel. and yea i put a new thermostat in it bout 9 months ago and the one i took out was broken in 5 pieces. i also put in a new radiatyor at the time

 

I'd say thank your lucky stars, every Jeep I have overheats at some point in time (hence the 180-stat). Sounds like that thing is working excellent... Did you put a 180 in it when you changed it?

 

no not that i kno of it ran at 210 up until a week or so ago

 

Wow... That's kinda awesome...

 

My thermostat was frozen completely open for 6 months, my engine temp wouldnt go hotter than 120 degrees. I didnt notice poorer mileage, but I needed to make a road trip this winter and wanted heat, so I swapped it out and all is fine, normal operating temp.

Although, I must have bumped the temp sensor becuase now occasionally the guage drops to zero, triggers the "Check Engine" light. Like it loses the signal or something. Then within 1/2 hour it comes back, but that CE light stays on for about 200 miles.

 

Double check the connection on the sensor mounted in the thermo housing...

 

Thanks. I had assumed the sensor fitting was in a far more complicated location, and I admit I paid a mechanic to change my thermostat. (I dont have a garage, and that week it was 15 degrees out!). I'll see if the connection needs cleaning or is maybe not reconnected right. Right now it's kind of annoying.