Coolant level switch maybe .
Install a scan tool.
With a scan tool, view the Coolant Level Switch data in the Engine Data 2 data list.
Does the scan tool display Low?
YES - Go to Step 4
NO - Go to Step 7
4
Disconnect the coolant level sensor electrical connector.
Connect a 3-amp fused jumper between the coolant level switch signal circuit of the coolant level sensor electrical connector and the ground circuit of the coolant level sensor electrical connector.
With a scan tool, view the Coolant Level Switch data in the Engine Data 2 data list.
Does the scan tool display OK?
YES - Go to Step 8
NO - Go to Step 5
5
Connect a 3-amp fused jumper between the coolant level switch signal circuit of the coolant level sensor electrical connector and a good ground.
With a scan tool, view the Coolant Level Switch data in the Engine Data 2 data list.
Does the scan tool display OK?
YES - Go to Step 10
NO - Go to Step 6
6
Inspect the coolant level signal circuit for an open or short. Refer to and in Wiring Systems.
Did you find and correct the condition?
YES - Go to Step 14
NO - Go to Step 9
7
Inspect for poor connections at the harness connector of the IPC. Refer to and in Wiring Systems.
Did you find and correct the condition?
YES - Go to Step 14
NO - Go to Step 11
8
Inspect for poor connections at the harness connector of the coolant level sensor. Refer to and in Wiring Systems.
Did you find and correct the condition?
YES - Go to Step 14
NO - Go to Step 12
9
Inspect for poor connections at the harness connector of the PCM. Refer to and in Wiring Systems.
Did you find and correct the condition?
Go to Step 14
Go to Step 13
10
Repair the open in the ground circuit of the coolant level sensor. Refer to in Wiring Systems.
Did you Complete the repair?
Go to Step 14
--
11
Replace the IPC. Refer to in Instrument Panel, Gages and Console.
Did you Complete the repair?
Go to Step 14
--
12
Replace the coolant level sensor. Refer to in Engine Controls.
Did you Complete the repair?
Go to Step 14
--
13
Replace the PCM. Refer to in Engine Controls.
Did you Complete the repair?
Go to Step 14
--
14
Operate the system in order to verify the repair.
Did you correct the condition?
System OK
Go to Step 3
Coolant Level Switch
In the coolant reservoir
It could be the coolant level sensor. Is there any internal damage to reservior. Is there a loose or dirty wire connection on the side or bottom of the reservior. Is this reservoir located on passenger side near firewall?
SOURCE: Need to reset LOW COOLANT light on 2000 Chevy Silverado 1500
Try pumping the brakes 3 or 4 times with the truck running in 'park'.
SOURCE: no heat in 97 mercury villager
your heater core may be getting blocked up, or the thermostat may be stuck open at times. you have a few options here, option 1 and 2 cost about the same, option 1: have the thermostat replaced just so you know its working properly, a 97 will most likely not have a telltale way of knowing if the thermostat is bad or going bad. option 2. have the cooling system flushed at a shop. this will try to clear out and debris in the cooling system that may be blocking passages or the heater core. option 3 is the most expensive. have the heater core replaced, the heater core is what provides heat to the hvac system in the dash. a few other things to check would be vacuum lines/actuator/temperature door on your hvac system.
SOURCE: Coolant Leak
remove the belt,fan and pully their is a small hole in the bottom of the water pump you will be able too tell if its been leaking out of their, if so replace the waterpump
SOURCE: 2000 chevy silverado normal operating temp 210 ,
With the truck running at operating temperature, squeeze your upper radiator hose. You may have to check it a couple times allowing time for your thermostat to open. Are you able to compress the hose a little when you squeeze it or does it remain stiff/solid? Your thermostat may be stuck open or even stuck closed.
235 views
Usually answered in minutes!
×