My 93 Ford t-bird over heats and i really don't know what could be the problem, the radiator is working fine, and also the fan and the thermostat, i don't think is a head gasket because the oil looks alright with no contamination and there is no steam coming from the exhaust im beginning to suspect the water pump but the weep hole is not leaking. So does a water pump MUST leak from the weep hole if it is bad, or it could be bad and not leak? thanks in advance...
It doesn't have to leak from the weep hole to have a bad shaft bearing in your pump. This won't affect your pump's ability to create a flow. Warm your car up and see if coolant ever moves or if it just stays put or comes out of the cap. You may just have a bad thermostat or a clogged radiatior (internally clogged).
My husband says: If it has a clutch fan, the clutch could be bad; the impleller in the water pump could be bad or broke and to check and make sure your belt is not slipping. Hope this gives you some ideas!
Water pumps fail with some regularity--you can expect to replace yours sometime before 100,000 miles, if not sooner, and here's how to do it.Step2Locate the water pump pulley. The pulley is the round part that the belt is attached to. To find it, look for the belts. You will see more than one pulley. Your car will have an alternator with a pulley and perhaps an air conditioner power steering and smog pump pulleys. If you are unsure, ask your mechanic to point out the water pump pulley. Step3Grab opposite ends of the round pulley and check for play (looseness): Try to rock it back and forth. There should be no give. If there is, the bearings are going and it's time to replace the water pump. By the time you can feel play in the water pump pulley, you may also be able to hear the bad bearing when the engine is running - there may be a low-pitched grinding noise coming from the water pump pulley. Step4Visually check the water pump (it's located behind the pulley) for signs of a coolant leak. If the water pump gasket is leaking, it must be replaced. This is a good time to get a new water pump, too, unless it was just recently replaced.
the water pump might be bad, it won't let the coolant to circulate. or you might have an air pocket in the coolant, that is the great possibility, you need to bled out that air. check the auto manual first before you start that service, all cars are different setup. and to check the water pump if it works, let it run and hold the upper coolant hose for few minutes and let someone to help you to watch the gage if its going to the hot zone, the hose you just holding should get hot even if there is air pocket. then you will know the pump is working. check the botom hose also,to check if the coolant circulate . If it wont get hot the botm hose , you might have a restriction in the engine block. checked also the fan clutch if you have one. Jesus is good . only God is good.
