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My 16 year old son frontier is overheating and leaking coolant back towards the back of the motor. Someone told me it might be a heater hose. Does anyone have any insight on this. I need to get it fixed asap so he can drive himself to work and don't want to by something that it isn't needed. Thanks
 

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4-cylinder engine or V6???? We're not mind readers.

You must find the leak, could be from a bad heater hose, or from a bypass hose. Or could be more serious like a head gasket issue.

Clean off engine add coolant, get engine going and pinpoint the leak first. If necessary, get loaner kit which attaches to radiator neck and you pump up pressure, forces coolant out the leak area. There are also UV dyes that can be used, but these require special light and goggles.
 
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