The radiator cap is more than a cap for your radiator; it keeps your engine cool by sealing and pressurizing the coolant inside it. It is designed to hold the coolant in the radiator under a ...

We may receive a commission on purchases made from links. Whenever I get my hands on a newly bought used car, my checklist includes inspecting a few underhood items as part of the "getting-to-know-the ...

How hot does your engine run? Is it on the cool side? The hot side? Where should it be? How big of a radiator should you run? Antifreeze or water? Tap or distilled? Do you need a pressurized cooling ...

As he drove home from work about two weeks ago, Eric Kiyonga saw a layer of smoke permeate through the bonnet area. His mind raced fast to the exhaust pipe but he soon realised it was smoke mixed with ...

Cooling systems are pressurized, and the radiator cap is there to manage the pressure. Downflow radiators can only have the cap on the hot side (where hot coolant exits the engine), so this is the ...

Falling victim to radiator boil over or having your engine vapor lock while cruising through town is never a good thing. Finding yourself in the left turn lane at a red light with the engine ...

Symptom: An engine’s cooling system is overheating. The coolant level is low, but there are no visible leaks and no water in the engine crankcase to hint of water jacket or cylinder head problems.