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Yes, if it is not holding pressure or is allowing a coolant leak.

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Q: Can radiator cap cause overheat
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Related questions

What is the Cause of radiator cap breaking?

The spring on the bottom of a radiator cap will cause it to fail. If the spring does not work properly it can lead to pressure escaping from the radiator which can overheat the vehicle.


Why does 1999 intrigue overheat?

Bad thermostat, cap and radiator is a common cause.


Would a radiator cap cause a car to overheat?

to add to this, a big YES,on the radiator cap .the radiator cap needs to be specific pressure rating. radiator caps do wear out. also the cheapest fix to start It is doubtful a radiator cap would cause a car to overheat. Common overheating causes are insufficient coolant, leaking coolant (into or out of your engine), faulty thermostat, blown cooling fan fuse, faulty fan temperature switch ( sender ), faulty fan, or a faulty fan relay.


What could cause 4.6northstar engine to overheat even after changing the water pump thermostat radiator cap?

You have a blown head gasket.


What would cause a 94 cadillac sts to overheat and coolant to be low after a short distance?

Blown head gasket or bad radiator cap


Can a bad radiator cap make an engine overheat?

It can be a significant contributing cause, especially if it's bad enough to keep the system from pressurizing.


Can radiator cap cause overheating?

If the cap is not holding pressure or if it is damaged, the engine will overheat. The automotive cooling system must be pressurised, WHY?? its because when you pressurise the fluid, the boiling point will increase.


What might cause a 1993 Mazda mpv to overheat?

Low coolant Bad radiator cap Dirty or plugged radiator Thermostat cooling fan not working Water pump Collapsing hoses


What can cause a 2000 Chey Venture to overheat after replacing the radiator the thermostat and the radiator cap?

It probley has an AIR pocket in the cooling system. Bleed the air out of the system and make sure it is full of fluid.


Could the radiator be the cause of overheating on a 1996 impala?

Yes, a restricted or leaking radiator can cause the engine to overheat.


Could a head gasket make your engine over heat?

A faulty head gasket can cause a coolant loss which will cause an overheat. Exhaust getting into the water jacket will cause it to overheat very quickly. 5 minutes, 10 miles. With it cold, take the radiator cap off and start the car. Water should shoot out the radiator a couple of feet high.


Can you drive a car without a radiator cap?

Not for very long, the coolant will splash out to a point where it will overheat.