best way to make a coolant *pressure* sensor?

[othtim]

I'm considering putting a coolar *pressure* sensor (idiot light) in my car. Anyone have an idea of the best place to put a pressure sensor? :S Coolant temp is great, but if yoyou blow a frost plug and your coolant drains out, that'll be a problem too. 🙂

-Tim

 

[bill]

I'm considering putting a coolar *pressure* sensor (idiot light) in my car. Anyone have an idea of the best place to put a pressure sensor? :S Coolant temp is great, but if yoyou blow a frost plug and your coolant drains out, that'll be a problem too. 🙂

-Tim

coolant doesnt make much pressure until its hot...so the light would stay on for a while when cold....Id say a coolant "level" sensor would make more sense....just my opinion...

 

[DRIVEN]

I agree with Bill on this one. Level sensor makes more sense. Hot or cold it will alert you to a problem. That's why the manufacturers use this method. I guess you could use an oil pressure idiot light sender but it will be on until the engine warms up and pressure gets above 7psi (or whatever the rated pressure is) which will tell you nothing on a cold start-up or for the first 15-20 minutes. Also if your radiator cap gets weak and purges early the light will never go out. Not sure if any later Gbodys had a level sensor in the overflow bottle but mine doesn't. You could probably adapt something like this http://www.ebay.com/itm/ACDelco-3055285 ... es&vxp=mtr for use in your bottle by drilling a hole and using a rubber grommet.

 

[bill]

I agree with Bill on this one. Level sensor makes more sense. Hot or cold it will alert you to a problem. That's why the manufacturers use this method. I guess you could use an oil pressure idiot light sender but it will be on until the engine warms up and pressure gets above 7psi (or whatever the rated pressure is) which will tell you nothing on a cold start-up or for the first 15-20 minutes. Also if your radiator cap gets weak and purges early the light will never go out. Not sure if any later Gbodys had a level sensor in the overflow bottle but mine doesn't. You could probably adapt something like this http://www.ebay.com/itm/ACDelco-3055285 ... es&vxp=mtr for use in your bottle by drilling a hole and using a rubber grommet.

most aftermarket radiators for the Gbody cars have a port for a level sensor/coolant sensor.