Heating problems

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Feb 17, 2016 | 07:49 PM

#16

bobs 80 f250

Thread Starter

Mountain Pass

Joined: May 2012

Posts: 186

Likes: 1

From: Voorhees NJ

Tried that as stated in an earlier post.............for some strange reason it got cooler!!!!!

Feb 17, 2016 | 09:24 PM

#17

FuzzFace2

FTE Legend

Joined: Nov 2015

Posts: 30,935

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From: Angier, NC

Now that you have a way to measure the temps I would do it again just for S&G's
Dave ----

Feb 18, 2016 | 05:06 AM

#18

ArdWrknTrk

pedant

Joined: Jan 2008

Posts: 23,576

Likes: 40

From: EXTREME southwest CT

Quote:

Originally Posted by bobs 80 f250

Checked the temps on the hoses,(143F) on both. Check hoses on radiator 107F. Seemed strange. Pretty sure I put a 195 stat in. One thing I'm suspicious about is that when I released the pressure on the rad cap I had none. Pretty sure that the stat has a bypass hole in it to keep from boiling over if it would stick. Need another day to check mixing door!

That little hole is to allow you to fill the system without burping.
There's no way it would pass enough coolant to cool the engine.

If you are only at 143* why would you expect to have pressure or for the 195* thermostat to open???
The heater loop is always independent of the thermostat, and there won't be pressure until coolant in the engine tries to boil..
This is the whole point of keeping the cooling system under pressure!