Why is the radiator fan not working on my Chevy Uplander?

Your Chevy Uplander ‘s radiator fan has one of the most important jobs on the vehicle. It is the last line of defense between you and an overheating engine. If the radiator fan is not working, it’s a serious problem. Just because the radiator fan is not on does not mean that it is not working. They are designed to only run when needed.

How does the radiator keep the engine from overheating?

by Lina Schofield. The radiator acts to protect the engine block from overheating when it is functioning properly. The radiator additionally keeps the pistons in working order, allowing the engine to run. Coolants pass through the engine block, flowing into the radiator to draw out excessive heat. The coolant then recycles through the engine.

Why is my car running hot but not overheating?

If you find that you’ve got a car running hot but not overheating there might be a few reasons: 1 Clogged or damaged radiator 2 Low coolant level 3 Damaged water pump or thermostat 4 Overworked engine More …

Where does the coolant go in a car radiator?

Almost all automotive vehicles use a closed-loop, liquid cooling system. The water pump circulates coolant through the cooling tubes of the radiator, where it cools and travels through the engine passages and hoses. Coolant, or antifreeze, is designed to flow smoothly through all of the cooling passages, with no air blockages.

What to do if your radiator fan is not working?

The first thing that you would want to do is locate the fuse for your Uplander’s radiator fan and make sure that it hasn’t blown. If it is blown, replacing the fuse will only solve the problem for a very limited period of time. Unless the wiring issue is fixed, the fuse will blow again. The wiring harness itself can go bad.

What to do when coolant does not drain back into radiator?

The level in the overflow bottle gets high and stays that way until i siphon it out. Fill the radiator, Install a cooling system pressure tester and pump it up to around 10 psi. Start the engine and rev it up and down, watching the pressure gauge carefully.

Why is my radiator fan not working on my Toyota Camry?

If you do have low coolant, don’t fill it up until the engine has cooled off. Adding coolant to a radiator dry enough not to trigger the engine temp sensor can cause problems from drastic temperature change. Let it cool down first. Like any other clutch, a fan clutch will wear out over time.

Is it possible for the fuse to blow again on an uplander?

Unless the wiring issue is fixed, the fuse will blow again. The wiring harness itself can go bad. Your author has personally had a shredded tire completely pull the fan wiring out of his vehicle. It can happen. The fan wiring is some of the more vulnerable wiring in your Uplander. You can test the voltage going from the fan relay to the fan itself.

Why are the cooling fans not working on my car?

1. Engine running hot 2. Cooling fans do not function 3. Cooling fans stay on at all times Average rating from 129,472 customers who received a Vehicle Engine Cooling Inspection. Most modern vehicles use electric cooling fans to help pull air through the radiator so that it can keep the engine cool.