What does a coolant level module do?
The purpose of the coolant level module is to minimize galvanic corrosion by reducing the amount of electrical flow through the coolant level sensor. The ECM continuously runs diagnostics on this circuit when the key switch is in the ON position or when the engine is running.
Is the low coolant light on or off?
“Low coolant” light goes on and off intermittently with no pattern to it. Has been this way for 3 months or so. Coolant level has been checked at the radiator and the level is fine.
Why is there a warning light on my coolant tank?
The most common reason for the coolant light to become illuminated is simply that the coolant level is too low. There may be a floating sensor in your coolant tank that triggers the warning light when the level drops. You may need to book a coolant change.
Where is the low coolant sensor on my truck?
Maybe 6 or 8 inches down from the top on either side as Freddyack stated. 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.
How to check the coolant level on a diesel?
(Unfortunately we do not have a 1993 manual in the FAQs): The coolant level indicator circuit is shown in figure 7. 1. Turn the ignition switch to the “ON” position. connector is properly installed on the module. Go to step 2. module. Replace or repair as required. 2. Turn the ignition switch to the “ON” position and sensor on the radiator.
When does the low coolant level light come on?
When you start the engine, the low coolant level light should come on for a second or two and then go out. If it doesn’t go out, either the coolant level is too low or there is a problem with the sensor system. `. The light usually shows either a thermometer or a box, often with wavy lines to indicate liquid.
What is the low coolant level sensor on a Cummins?
Cummins ISB and ISC, Low Coolant Level Sensor 54-265 General Information The three-wire low coolant level sensor (CAS 700685 001) on some M2 vehicles built from 2007 to October 8, 2009, with Cummins ISB and ISC engines, may develop an internal leak, causing the engine light to illuminate and the engine to shut down.
How does a coolant level sensor work in an expansion tank?
The coolant level sensor can be a float-type device, which activates the warning light when a low coolant level sends it to a low position in the expansion tank. Or it can involve electric sensors with two electrodes that are placed at the bottom of the expansion tank.
(Unfortunately we do not have a 1993 manual in the FAQs): The coolant level indicator circuit is shown in figure 7. 1. Turn the ignition switch to the “ON” position. connector is properly installed on the module. Go to step 2. module. Replace or repair as required. 2. Turn the ignition switch to the “ON” position and sensor on the radiator.