I have a 2003 f150 that leakes antifreeze onto the top of the engine. Replaced the intake manifold and the heater pipe from the waterpump. It still leaks and I don't know it is coming from. any id

Asked by Jan 26, 2016 at 12:28 PM about the 2003 Ford F-150 Lariat Crew Cab SB

Question type: Maintenance & Repair

Replaced the intake manifold and the heater pipe.  I bypassed the heater core and it still leaks on top of the engine and I cannot see where it is coming from. any ideas?

2 Answers

104,085

Did you check the gasket on the thermostat housing?

2 of 2 people found this helpful.
18,790

Go down to a local auto parts shop and get the radiator test kit. They will let you use it, and refund whatever they charge when you return it. Pump it up to no more than ten or so pounds and you'll find the location of the leak.

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