Caps on motor oil bottles, pop bottles and beer bottles keep the liquid in. But a radiator cap is not any ordinary cap. Though it seals the cooling system from the outside, the radiator cap is ...

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.

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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 ...

OK, so the cooling system on your truck is not nearly as sexy as those new shocks or lights. The cooling systems on your rig, however, are much more complicated than it may seem. It’s also far harder ...

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 ...