Where is the temp Guage and electic fan sending unit?
Installed the temp sender for gauge where the original one was installed on the driver’s side head. I also have A/C, so I installed a diode in the power lead to the fans to keep the current from “back flowing” to the relay when the A/C is turned on.
How do you replace fuel gauge and sending unit?
Remove the screws that hold the sending unit to the tank and take it out. Next, remove the three wires on the back of the old gauge. One wire goes to the center pin on the tank sending unit, one goes to ground, and the third connects to a 12-volt source, normally the ignition switch.
Do you need a temp switch for a dashboard gauge?
You have to get a dedicated temperature sending unit for a dashboard gauge. The temp switch you have now is only for the fans. yeah thats what i figured, now i gotta figure out where i should mount the sending units, cause it appears i only have 2 choices, drivers side head, and intake.
How does a coolant temp sensor work on a fan?
Coolant Temp Sensor – LH head. I have used a t-stat housing mounted fan switch with excellent results. Sounds like you hooked up a gauge to a temperature switch. That’s a problem right there. A gauge won’t run off a temperature switch. Also that temp switch supplies the switchable ground connection to the fan relay.
Remove the screws that hold the sending unit to the tank and take it out. Next, remove the three wires on the back of the old gauge. One wire goes to the center pin on the tank sending unit, one goes to ground, and the third connects to a 12-volt source, normally the ignition switch.
Installed the temp sender for gauge where the original one was installed on the driver’s side head. I also have A/C, so I installed a diode in the power lead to the fans to keep the current from “back flowing” to the relay when the A/C is turned on.
What’s the difference between the fan sender and the fan switch?
Because the fan relay sender is just a switch, it doesn’t detect variables in temperature like a typical gauge sender does. If you’re coolant temperature is 125 degrees, it’s the same as 0 to the sender, and it’s switched off. If your coolant temperature is 210 degrees, it’s the same as seeing 185 degrees, and it’s switched on.
What happens when the fan relay is switched off?
You would get the same result by grounding the wire from the relay directly; it completes the circuit. Because the fan relay sender is just a switch, it doesn’t detect variables in temperature like a typical gauge sender does. If you’re coolant temperature is 125 degrees, it’s the same as 0 to the sender, and it’s switched off.
Where is the best location for coolant temperature sending unit?
The car wasn’t actually overheating but the gauge would show it so we moved the sensor to the manifold and it started to jive with the t-stat. Another factor may have been that the headers were close to the port on the head too. Thanks guys, NYH1!
Where to put the temp sending unit in a Chevy Nova?
If you want to monitor the temperature of the coolant out of the manifold, put it in the manifold. or the Intake and why??? I’ve always believed it was the Head
Where did GM put the coolant sensor in the head?
GM put the sensor in the head, made sense to replace it there… Click to expand… True, but they never made a factory 383 stroker and actually put them in a car…just saying lol!
Where is the water temp gauge sender in the car?
(edit) actually, not “every” V type engine- the LT1, L99, and LT4 engines didn’t have a water crossover in the intake manifold, so the temp sender is in the water pump right next to the water outlet- but the sender for the gauge in the dash still goes in the head.. >>> Huh???? You’ve got it bass ackwards.
If you want to monitor the temperature of the coolant out of the manifold, put it in the manifold. or the Intake and why??? I’ve always believed it was the Head
Is there a temp sending unit on a 350?
*** Also, I have ran a temperature sending unit in the heads on a 350 (with cast iron heads) and never had a temp issue.
You have to get a dedicated temperature sending unit for a dashboard gauge. The temp switch you have now is only for the fans. yeah thats what i figured, now i gotta figure out where i should mount the sending units, cause it appears i only have 2 choices, drivers side head, and intake.
Coolant Temp Sensor – LH head. I have used a t-stat housing mounted fan switch with excellent results. Sounds like you hooked up a gauge to a temperature switch. That’s a problem right there. A gauge won’t run off a temperature switch. Also that temp switch supplies the switchable ground connection to the fan relay.
What do you mean by temperature gauge is fluctuating?
Temperature gauge is fluctuating, sometimes showing overh… Q: Temperature gauge is fluctuating, sometimes showing overheating.