Anyone run a 160 degree thermostat?

[ENASNI]

My H3 runs a little above the half way mark. Unless I'm off road then it creeps up even higher. I'm wondering is the CEL will come on since the engine isn't warming up to temp fast enough. This is a job I only want to do once since everything I've read here says it's so much fun hehe. I'm going to do the water pump and hoses while I'm at it as well.

http://www.summitracing.com/parts/lpe-l310065307/overview/year/2008/make/hummer/model/h3

 

[rsc]

160 will have a CEL light popping up in winter. Stock is 180 but good luck finding it, it was switched over to 190 along the way. Just make sure with an OBD II gauge that the dash gauge is actually correct. 210-215 in summer is normal and not overheating until over 245 or 250! When that happens your a/c will shut off and you will get warnings on the DIC.

 

[08H3]

... OBD II gauge that the dash gauge is actually correct..

From experience that may not even tell you the correct temp. I replaced my sensor last year. I put in a Borg Warner since that's what the parts store had and it consistently reads (via the Scan Gauge) about 10 degrees lower than what the original did. I agree though that the 160 is too for the thermostat.

 

[alrock]

My truck, at least in the warmer months which is March - October, is always 195+. Not sure how I'd benefit from any other thermostat.

 

[rsc]

True on the temp sender. I was just remembering that cracked exhaust manifolds can raise the temps, either blowing gases up on the sender or putting hot air into the engine bay reducing efficiency.

 

[ENASNI]

My LS1 liked the 160 over the 180. I know its a totally different animal. No CEL and seemed happier. They have 180's on summit as well. I may go that route.