ZR-1 Net Registry Forums - View Single Post - Car runs hotter after tume and header install.

Rob 93ZR-1 · 09-12-2010

Pulled the radiator out and pressure washed all the junk out of it. It was filthy and we thought we figured out the car running hot problem. After re-assembly, car ran same as before. Sits about 200 F (Digital gage) if driving normal with no AC. Add AC and it climbs to 220. Hammer on it at all and it jumps to 224. Turn off AC and it drops back down in a few minutes. Both fans working properly.

Three questions:
Does the digital water temp and the gage use the same sensor? (Gage and digital seem to match, so I was thinking that was confirmation I was indeed running hot, unless I have a bad common sensor)

Do I need a lower temp t-stat?

Is a collapsing hose causing this?

Any suggestions appreciated.

Thanks!

09-12-2010	#1
Rob 93ZR-1 Join Date: Mar 2008 Location: Houston TX Posts: 9	Car runs hotter after tume and header install. Pulled the radiator out and pressure washed all the junk out of it. It was filthy and we thought we figured out the car running hot problem. After re-assembly, car ran same as before. Sits about 200 F (Digital gage) if driving normal with no AC. Add AC and it climbs to 220. Hammer on it at all and it jumps to 224. Turn off AC and it drops back down in a few minutes. Both fans working properly. Three questions: Does the digital water temp and the gage use the same sensor? (Gage and digital seem to match, so I was thinking that was confirmation I was indeed running hot, unless I have a bad common sensor) Do I need a lower temp t-stat? Is a collapsing hose causing this? Any suggestions appreciated. Thanks! Last edited by Rob 93ZR-1; 09-12-2010 at 10:30 AM. Reason: kant spel