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When engine temp is too high

Steve #1

Well-Known Member
Messages
534
Location
TEXAS
Draining it at the radiator is probably easier but be ready with a big drain pan because the coolant is still going to go all over.
 

Kelly@PCMofNC

Well-Known Member
Messages
80
Location
Mooresville, NC
Good luck with it, hope you get it taken care of!

As someone else mentioned, the scan gauges work great (we sell them and I have them in our own trucks as well) to tell you accurate temperatures. A lot of times the factory gauges aren't so great to go off of, a scan tool gives you a far better reading if you're curious.
 

alrock

El Diablo
Staff member
Messages
10,677
Location
Scottsdale
DesertH3 has done this and might be able to give you tips. He's got posts on this somewhere here. The thermostat is a PITA to reach but it seems like you're already there - just a tight reach to do the bolts.
 

JonBishop

Well-Known Member
Messages
724
Location
Glendora, CA
thank you for the help everyone im gonna give it a try again today and drive it around and see if the temp gets fixed, hopefully it does :)
 
R

R-code17815

Guest
No drain plug in the H3, pull the lower hose.

To me, and I'm sure people will disagree, you prob. just have a Stat. going bad.



Main issue I found, I'm sure people will disagree here too, The water pump spins to slow. I'd like to find a smaller pulley if possible.



I'm running a 2 core Alum Radiator with an Elect. fan and the cooling system acts exactly the same as stock, Just no leaks.

Idling and low RPM driving temp gauge sits a little over half, 2K RPM's or better it sits at 180 all day.

I just don't think they move enough volume.
 

Firesquirt

Well-Known Member
Messages
46
Location
La Quinta Ca.
I was suspicious that my fan clutch was getting weak, then on my trip to Washington I Started having cooling issues, climbing hills (grapevine, Shasta) the gauge went as high as the red zone, had to turn off A/C (sucked). would run 215 on flats, ran at 222 when at idle 230 on small hills.

When I got to Washington I changed the fan clutch and cleaned the radiator finns while I was at it, a big huge difference! If you suspect cooling issues I would change the fan clutch, best 60 bucks to spend for piece of mind if nothing else.
 
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