Overheating n drilling the thermostat

Phil Rose pjrose at frontiernet.net
Fri Jul 5 10:43:21 EDT 2002

At 8:57 AM -0400 7/5/02, Chewy4000 at aol.com wrote:
>Two days ago the temp whent between the two dots, so I sshut down
>the engine and looks around.
>The 2yr old fuse ling melted big time, I had a spare, and actually found it.
>My temp still stays, on these 100+deg days, right before the fist dot.
>I have a new rad. new aux pump new hoses all new fluid, what else can it be.

Considering that the fan's fuse melted, I'd consider a possible
problem with your fan (electrical or mechanical). Has the fan been
replaced recently? Is the fan blade able to rotate freely? I guess
the fuse sometimes can fail from age-related factors, but your fuse
seems too new for that.

>My thermostat is maybe 3 yrs old, could that be the problem.

Could cause overheating, but why the fuse meltdown? Does the fan
always come on when the temp gauge reaches 12 o'clock (or slightly
higher)? If not, your problem could be a defective thermal sensor in
the radiator.

>On normal days like today 80-90 the temp might be on 12 oclock or
>not much more but on 90+deg days that thing goes up like crazy.

I assume you're referring to the temp gauge reading while at idle,
not normal driving temps???? Otherwise that temp range would seem too
hot, in which case I'd suspect it's thermostat, thermal sensor, or
water-pump related. Was the water pump replaced recently? If the
water pump has seized, you might see an indication  of that by
pulling away the T-belt cover and checking whether or not the T-belt
has a very glazed appearance.


Phil Rose
Rochester, NY
mailto:pjrose at frontiernet.net

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