or should i replace the thermostat.
it never goes midway between the C and H is it a problem?
it never goes midway between the C and H is it a problem?
my fj60 temp gauge always remains near the C temp...is that ok?
- Thread starter Young Pete
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if your temp is always near the c it means your running cold and the thermostat could be stuck in the open position
i would as a matter of course replace the thermostat
i would as a matter of course replace the thermostat
Actually the truck will run cooler with the thermostat stuck open only until it warms up. Then it will overheat. The water will be moving too quickly through the engine to properly cool it.
So my guess is that the thermostat is a cool range one. I don't think that you will be causing any damage, but you may not be running at peak effeciency. Cool is much better than hot.
So my guess is that the thermostat is a cool range one. I don't think that you will be causing any damage, but you may not be running at peak effeciency. Cool is much better than hot.
A stuck thermostat wont cause you to overheat. The water isnt being pumped faster if the thermostat is stuck open, it just wont heat up unless you load it to the point that it should stay open ie running hard on a hot day. There is no difference to the cooling system between a motor with a thermostat opened normally and one stuck open.
One word of advice, 2 bolts on my thermostat housing were badly seized and broke, i had to use a torch to get them out. It might be a good idea to have a couple extra bolts handy.
I guess there could be varying degees of how "stuck open" a thermostat could be. If it was only partially open it may slow down the water enough to cause a cooling effect. But if it was stuck wide open it would overheat.
This is how I know, unfortunately.
I had a 67 Firebird with a 350 (LT1, yes it was a Chevy in a Pontiac) that was built. It was running hot and the brain surgeon that I am, I took out the thermostat, thinking as you do that it would provide maximum cooling effectiveness.
And as I said before, the car ran cool until it warmed up and then it overheated. Replaced the thermostat with a cooler range one and everything was fine.
So the moral of the story is that you need for the coolant to slow/stop to acheive cooling effectiveness.
This is how I know, unfortunately.
I had a 67 Firebird with a 350 (LT1, yes it was a Chevy in a Pontiac) that was built. It was running hot and the brain surgeon that I am, I took out the thermostat, thinking as you do that it would provide maximum cooling effectiveness.
And as I said before, the car ran cool until it warmed up and then it overheated. Replaced the thermostat with a cooler range one and everything was fine.
So the moral of the story is that you need for the coolant to slow/stop to acheive cooling effectiveness.
My cruiser is doing the exact same thing. i went to toyota and they wanted a small fortune for the t-stat even with my employee discount. and they also said that the 4 bolts are discontinued. i dont have much heat at all but lucky that summer is almost here. should have some better preformance running cooler just suffer some mpg's some more.
There isnt anything special about the bolts, and NAPA has thermostats for cheap. Im sure Cdan does too.
By the way, you have my dream vehicle collection, although personally i would drop one of the chevelles for a 66 nova, but ill let that one slide.
Does the gauge move at all?
If it does not move check to make sure you wire is connected. It is common for the wires to get burned or melted do to improper routing. If the wire checks out then you might want to replace the sending unit.
If it does not move check to make sure you wire is connected. It is common for the wires to get burned or melted do to improper routing. If the wire checks out then you might want to replace the sending unit.
Napa thermostat is a really nice heavy duty thermo. Very easy to change. Also as mentioned above check the temp sensor wire. Temp sensor itself is not a bad item to replace as well.