160 degree thermostat
yukongt9682
01-31-2005, 07:59 PM
A quick question for you guys, I have a 96 yukon with the 5.7, I recently installed the hypertech power programmer, and also bought the hypertech 160 degree thermostat. I have heard a few different things on running a low degree thermostat like that. Some say I want have a problem, others say the cold start (choke on newer models) will never turn off because it will never get warm enough. Just wondering if any of you have run a 160 in this type of truck and if it is ok to do so? If you have any info on this please let me know.
thanks
brad
thanks
brad
777stickman
02-01-2005, 07:05 PM
My opinion: 160 is too low. I did the HyperTech on my '98 7.4 Sub and went with the 180. No problems to date. Coolant temp is a big thing for the PCM. If it doesn't get hot enough it will stay in the "enriched" mode. Not good!!
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