Overheat alarm/buzzer?

[redfishsc]

Anyone using an overheat alarm?

Both of my trucks are 5.7 vortec and I think I'd like to use the unused passenger side coolant plug (on the head) to install an alarm, especially for the one my wife drives and which we use as a long-haul family tripper.

Dash gauge works fine, just reads about 20 degrees less than actual, which is common on these anyway. Actual temp runs 190 to 195, verified by scan tool while running


If you have used one of these, I'd love some suggestions

 

[Dan_Frisbie]

I've used temperature lights on a few race cars in the past, but it's been nearly 30 years since I've put one together... Go to a racing products sight like Summit and you should be able to get a sending unit designed specifically for an alarm or light, either preset or adjustable to your desired temperature.

 

[Bob L]

Many boats use temp alarms also so that could be a source. My brother runs on on his diesel lobster boat. Fisherman have to many things going on at once to keep an eye on gauges. Smart one have high water alarms in the bilge too.

 

[Urambo Tauro]

I've never used one of these alarms before, but now you got me wondering how easy it would be to wire something up using the existing chime/buzzer circuit.

Really, you might not even have to install an extra sending unit. I don't think our trucks have a high temperature warning lamp to tap into, but what about the "CHECK GAGES" lamp? Isn't that activated by high temps? I think it's triggered by low oil pressure, too. Not a bad idea to have an alarm for that...

I bet this whole thing could cost mere pennies.

 

[90halfton]

Tell your wife how much new motor costs, I did that now she pays real close attention to gauges.

 

[redfishsc]

Tell your wife how much new motor costs, I did that now she pays real close attention to gauges.

Which motor? Should I quote a 383 stroker or the big block?

 

[df2x4]

Which motor? Should I quote a 383 stroker or the big block?

Turbo LQ4 swap, obviously.

 

[redfishsc]

Thinking about JB welding the thermostat shut now. Thanks for the help guys.!