5.3 LM7 running temperature

[lolthisisnuts]

My 5.3 runs around 220 degrees at idle with 185 degree thermostat. Does that seem a bit hot to anyone? I checked my cooling system for leaks and there are none. The t-stat is brand new.

 

[Injectedcutty]

What fan(s) are you running? I have a cammed LM7 with a good sized stall converter and 80E trans....last year on hot summer days mine never went above 210. I'm running Champion radiator, stock thermostat, and dual fans controlled by ecm.

 

[Built6spdMCSS]

Fans, radiator, system bled correctly.. few factors here.

 

[motorheadmike]

PCM tuned for fan on/off temps that match the thermostat?

 

[81cutlass]

Are you reading the temp with the PCM sensor that is in the head, an aftermarket gauge or one that is in the factory dash?

 

[64nailhead]

Answer everyone's questions in one post and I'm sure you'll find your issue.