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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

thermostat question

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Old Jan 21, 2004 | 09:44 PM
  #1  
wyotommy's Avatar
wyotommy
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From: slc, ut
thermostat question

Well, I am making some headway on the $800 truck. Very little, seeing as when I fix one thing, something else catches my attention. I am thinking about replacing the thermostat. My engine temp almost never gets above cold, and my heater blows warm air, but I am used to ford heaters putting out hot air. The hose from the radiator to the thermostat housing gets warm, so I don't think that is is stuck (at least not all of the way closed). Will getting a 195 degree thermostat do anything helpful, and will it hurt anything when the outside temps peak 100 degrees this summer. Remember, I am a rookie, so no laughing. I did manage to replace the fuel pump and the egr without blowing anything up....
 
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Old Jan 21, 2004 | 11:33 PM
  #2  
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plowpusher
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From: lino lakes, mn
a 195 stat is probably the recomended one for your truck what a stat does is keep your engine at a constant operating temp and keep the coolant in the block/heater long enough to heat it up running without a stat is actually worse for your engine as it is harder for your engine to stay at the correct temp for it's highest effiencyit won,t make any differance in hot weather if your truck cools like it should
 
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Old Jan 22, 2004 | 11:41 AM
  #3  
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From: Lincoln NE
The t-stat may be in backwards. Might be something to look at when you take it out.
 
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Old Jan 22, 2004 | 05:10 PM
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From: GANS
My guess would be similer to what happened to my $700 dollar truck.

There is probably NO thermostat in there. The radiator was probably clogged, and it was overheating, so they pulled the thermostat.

Make sure you get a high quality thermostat. The $3 ones are junk. like everyone else said, 195 all the way.
 
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Old Jan 22, 2004 | 06:36 PM
  #5  
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From: iowa
make sure the spring goes in toward the block when you replace it.
 
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Old Jan 22, 2004 | 09:27 PM
  #6  
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From: Lincoln NE
NAPA's t-stats are pretty good quality. Whatever you do, don't get one from Autozone.
 
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Old Jan 22, 2004 | 10:16 PM
  #7  
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From: slc, ut
Thanks guys. I will tear her apart tomorrow. The 10 degree weather here in Utah is brutal without a decent heater. I've been away from Wyoming too long, I'm turning into a wuss.
 
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Old Jan 23, 2004 | 03:21 PM
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I got the stant the comes in the box at advance auto. It works good. They make universal stants that come all shrink wrapped, and are about $2.50.. I think they are junk..
 
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Old Jan 24, 2004 | 03:50 PM
  #9  
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Just to be sure you might want to put new t-stat in a pot of water and boil to make sure it will open, I put one in once to ck and it started to click and then it stopped halfway open would not budge,after it cooled try again no luck, I threw it away got another did test no prob. never hurts to ck.
 
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Old Jan 24, 2004 | 07:46 PM
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From: slc, ut
I changed the thermostat today. I ended up doing it the messy way, but when I took a test drive afterwards, the engine came right to center on the temp guage and the heater acted like a true ford heater. I think that is one of the main reasons I like fords so much, the heaters heat up immediately rather than getting hot just as you reach your destination.
 
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Old Jan 25, 2004 | 09:58 AM
  #11  
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From: GANS
thats is the way its supposed to be. The only problem I'd had with fords is the blowers suck..

Just on a side note, I installed a mechanical temp gauge on my truck, and it runs between 193-196, which is good. Put the blower on, it'll drop down to 190. btw, this is at 5 degree F. Just an observation, that the heater core must not be too plugged.!
 
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Old Feb 23, 2004 | 12:57 AM
  #12  
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From: Chesterfield, VA
83 bronco running a little hot

Working on a 83' Bronco with a 302 and we just put a new edelbrock intake and 600 cfm carb on it... Replaced the therm with a 195' from Autozone and I think we got a bad one.. Now it's running hotter than before... Around the "M" in NORMAL on the temp gauge... I looked at the old one that came out and it had 192' marked on it... I told my friend that we should put in a 180' considering this truck has a history of overheating in the summertime, we replaced the water pump and had the radiator cored out and a couple of the coils are blocked last summer and it was fine...

Anyone put a 180' in? I had a 195' in my 1998 Chevy and have to use a 160' in it now to use a the performanc computer chip... Just notice it doesn't have the blazing heat in the winter that it used to but i live in Virginia so it doesn't get below 20 very much here...
 
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Old Feb 23, 2004 | 06:23 AM
  #13  
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From: GANS
I'd put a real gauge on it. I've seen some trucks run at between R and M, and my old truck used to run between the N and O. i put a mechincal on mine, and I know its running between 190-195.
 
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Old Feb 23, 2004 | 03:15 PM
  #14  
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I have tried many different thermostats, and have had the best performance from a factory ford unit. Haven't had a problem yet, and they don't cost much more. About $8.00 retail and $4.50 wholesale.


 
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Old Feb 23, 2004 | 08:20 PM
  #15  
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bremen242
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From: GANS
Factory 'stats are best. in buick 3.8s, the aftermarkets never work right (my dad has own 5 buicks with 3.8s, he knows). I've had good luck with the $8 stants one in my truck, the cheap ones are junk..
 
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