Temperature Feedback

[Goofyexponent]

Ok, I need to hear from those of you with an aftermarket temperature sender in the OVERTEMPERATURE SWITCH LOCATION.

It don't matter if you have a mechanical or electrical aftermerket gauge...just so long as it is in the OVERTEMPERATURE SWITCH location.

I noticed sonce the weather warmed up to between 70* and 80* that my engine temperature now is running close to 220* on my aftermatket mechanical gauge.

This is all unloaded, highway driving at about 60 - 70 MPH.

If I loaded it up, I KNOW I would burn her up...I need to know why...I am going to dig into her this weekend and see what lies within.

I changed the coolant out, pulled the block drains and put a new thermostat and gasket in last fall. Everything checked out until the weather warmed up.

I am going to snap the spring off the clutch fan right now (I have a new one to reinstall, and I know the clutch fan is getting WEAK, but not totally crapped out) and see what that does for me tomorrow.

 

[dyoung14]

im havin problems as well, mine gets to 245 unloaded ulling the mountain! you know 245 is only on the A on the factory gauge only reason i put a aftermarket gauge was cause i was pulling a load up the mountain an the temp gauge was only on the L but the check engine light came on

i dont even want to know how hot it got

 

[Goofyexponent]

Well, I pulled the spring out and used my dremel to gring the spring off as close as I could to the hub....so we shall see what the temperature gauge brings me tomorrow...the fan is DEFINITLY spinning now!!!

I am only getting to the N, maybe the O on the factory gauge and my aftermerket gauge is reading 215* - 220*.....I have had the factory gauge as high as M and A before, but the factory overtemp switch was installed...no check engine or anything came on, but still, you gotta wonder!!

 

[IDIDieselJohn]

damn double posts!

 

[IDIDieselJohn]

My electric gauge is in the temp light switch port witch I think is the one you are talking about.


I have a International 180* T-stat and just cruising along, my gauge reads right on 180*!


Climbing some major hills in the Rockies last summer or hills in the desert, never went over 210* with the fan clutch fully locked in and Roarin'!


This is in my 6.9 camper.

 

[gatorman21218]

mine runs about 210. I have seen 230 on 100 plus degree days burning down the interstate.

 

[itsacrazyasian]

190-195 with the a/c on and hauling ass.

the only time it has run warm was me doing 100+ and my condenser was clogged with love bugs

 

[CDX825]

190-195 just cruising empty.

If I'm pushing it for an extended time such as running to the fire department and the egts are up, it will show about 10 degrees hotter.

 

[dsltech83]

Mine runs about 210 as well. Think those of us that run a little hotter need new t-stats?
I've got a new water pump waiting to go on might just put a new stat in when I do it.

 

[lotzagoodstuff]

Don't forget about the condition of your radiator. If you have a radiator that isn't clean, it doesn't tranfer heat as well, and the flow is compromised too. I've pulled a radiator from a gasser and had it recored and seen 20-30 degrees cooler temps just making the system work as it was intended. The cooling system on these IDIs is very good when it's operating correctly, as I've been running without a fan and I can't believe how well the engine cools, even when I don't have a ton of air going over the radiator. Just my .02.

 

[pennsylvaniabo]

I also installed some aftermarket gauges.....it was reading 300* this weekend with total weight around 18k. Thought it seemed high so once home I hit it with an infrared temp gun and found the temp gun was reading 20* less than the gauge....but that would still mean 280 towing hills......


This still seems way too high. Any ideas on how to get it to cool more?

 

[FordGuy100]

Mine ran 190* but it was in the port On the waterpump. Now with no fan, 190-200*

 

[pennsylvaniabo]

Could my t stat be bad?

 

[FordGuy100]

I also installed some aftermarket gauges.....it was reading 300* this weekend with total weight around 18k. Thought it seemed high so once home I hit it with an infrared temp gun and found the temp gun was reading 20* less than the gauge....but that would still mean 280 towing hills......


This still seems way too high. Any ideas on how to get it to cool more?

Wow those are crazy high temps. What kind of radiator cap does it have? Water boils as 212 and for every 1lbs of pressure from the cap the boiling point is raised 2.something degrees if I remember correctly. A 13lb cap raises boiling point in the 240 range.

 

[pennsylvaniabo]

It never boiled over, or blew the cap, or overflowed the catch can? So idk what the deal is....It kinda confuses me