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Question (Category: Ford)
My daughter has a 1994 Ford Explore 4x4 with auto trans She was having overheating problems when going up hills so I replaced the radiator and the thermostat. when I took it out for test drive going up a very steep grade it still got hot but I noticed that the engin pinged real bad and it seemed to have no power. what might be the cause?
Info Request
Hi jsborn. Thank you for asking your question on JustAnswer The pinging can be caused by an overheating condition as well as a drop in fuel pressure ( lean engine) which can cause the lack of power. If you are sure the radiator cap is holding pressure and the head gaskets are sealing, I would start with checking fuel pressure, (35 to 45 psi) , cooling fan for proper draw across the radiator (air flow) and last but not least, exhaust back pressure (plugged Cat converters).

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