04’ cm870 coolant temp high

[Bengy88]

(06-15-2023 )Rawze Wrote:  

(06-15-2023 )Bengy88 Wrote:  Before I say this I may be thinking completely f*****. But since that engine should be regulated at 184 shouldn’t the ecm be requesting the fan to kick in way sooner than 210 degrees? I’m pretty sure a cm2350 kicks in at 210ish….. but an 870 should never see temperatures like that before the fan comes on….. maybe I’m wrong and if I am then someone please correct me like I said sometimes my brain gets me but I think I’m thinking right.

thermostat keeps it at 185-f.. but the engine fan does not kick in til it gets to 215F for most trucks.

Ok I gotcha. I dunno why I thought the older ones were closer to 195-200. Must have detroits on my mind lol. Thanks for straightening it out lol.