Where is the low coolant light on my truck?
Low coolant light. My truck is a ’93 6.5 C2500 and the low coolant sensor is in the passenger side radiator tank. About a foot down from the top. Also, if I’m remembering this correctly, the circuit board fed by the sensor and that controls the low coolant light is behind the ashtray. You’ll have to pull out the ashtray assy.
What to do if your coolant sensor goes out?
If your coolant tank is full and your low coolant light refuses to turn off, your coolant sensor may have gone out. Contact your mechanic. Never remove the coolant tank cap from a hot engine. The coolant is under pressure and could spew out, causing burns. Monte Carlo Forum: Coolant Level Senor????
Is the coolant level on my Silverado Sierra low?
A Low Coolant message may be displayed on the Driver Information Center of some 2017-2018 Silverado and Sierra models equipped with the 6.6L Duramax diesel engine (RPO L5P). An inspection of the radiator surge tank may appear to show a low coolant condition.
What to do if your coolant tank goes out?
If your coolant tank is full and your low coolant light refuses to turn off, your coolant sensor may have gone out. Contact your mechanic. Never remove the coolant tank cap from a hot engine. The coolant is under pressure and could spew out, causing burns. Suzette Barnard has been writing for newspapers since 1990.
Why does my GMC 2500 have a low coolant light?
A good diagnosis goes a long way. Would’ve saved you from having to buy 2 coolant tanks. I have a 2017 GMC 2500 HD with the 6.6 Duramax. The truck now has about 35,000km on it and the low coolant message is appearing at almost every start up. The tank is not low but I topped it off right to the cap and the message still pops up.
What to do if your coolant light is not working?
You’ll need to find the wires at the PCM that come from the switch. Then with a multi-meter set on ohms you put one lead on the wire at the PCM and the other lead on the wire at the switch. If it reads OL then the wire is open. If you get some numbers then its not open. If its open then just run a new wire from the pcm to the switch.
What should I do if my coolant level is low?
Don’t Do This = Do not replace the coolant level sensor, HVAC control module or radiator surge tank. A revised calibration has been developed to address this condition. Technicians are to reprogram the Heating Ventilation and Air Conditioning (HVAC) control module with the latest software available on TIS2WEB.
Can a PCM turn off a low coolant light?
Yes. If the light goes out then the switch is bad. If not then you could possibly have an open wire and the pcm isn’t seeing that the switch is closed thus keeping the light on. A multi-meter can tell you if a wire is open. Yes.
When to replace a car coolant light sensor?
If your car is older, the sensor has deteriorated with time and may be failing but not entirely failed. It is not a bad idea to keep an eye on your sensor’s readings. Replacing a sensor that is starting to show extreme signs of age and wear can prevent future problems.
Why does the coolant light go on when the tank is full?
Your problem also be a faulty coolant level module. Check the wiring to be sure nothing is loose or corroded. These are some of the possible causes of a coolant light going on when the tank is full. You’ll want to take your vehicle to a qualified repair location to diagnose and repair your problem if you can not easily diagnose it yourself.
What does a crack in the coolant light mean?
Your coolant light might be signs of a more major engine problem. When you get a crack in the block or the intake gasket you will leak coolant and oil, usually slowly at first. You may not notice the difference at first, thinking that your tank is full. A repair to a cracked engine block or head gasket is an expensive repair.
Low coolant light. My truck is a ’93 6.5 C2500 and the low coolant sensor is in the passenger side radiator tank. About a foot down from the top. Also, if I’m remembering this correctly, the circuit board fed by the sensor and that controls the low coolant light is behind the ashtray. You’ll have to pull out the ashtray assy.
Your problem also be a faulty coolant level module. Check the wiring to be sure nothing is loose or corroded. These are some of the possible causes of a coolant light going on when the tank is full. You’ll want to take your vehicle to a qualified repair location to diagnose and repair your problem if you can not easily diagnose it yourself.
Your coolant light might be signs of a more major engine problem. When you get a crack in the block or the intake gasket you will leak coolant and oil, usually slowly at first. You may not notice the difference at first, thinking that your tank is full. A repair to a cracked engine block or head gasket is an expensive repair.
If your car is older, the sensor has deteriorated with time and may be failing but not entirely failed. It is not a bad idea to keep an eye on your sensor’s readings. Replacing a sensor that is starting to show extreme signs of age and wear can prevent future problems.
What causes a car coolant sensor to fail?
Sensor Problems. Your sensor may fail or it may simply give a bad reading. A bad coolant sensor may cause a decrease in fuel efficiency or it may also cause the vehicle to fail your emissions inspection. It is likely that the problem may be a loose, corroded, or faulty connection and not a problem with the sensor itself.