If it just started after the thermostat was changed either it was put in backwards or it is not operating properly. GoodluckJoe
was told by a person that experienced the same problem...says that the cars will not overheat when idling no matter how long...only when driving.... says the problem is a bad bottom radiator hose..changed his and doesn't have the problem anymore.
Definitely can. When I replaced mine due to over-heating, I found the plastic impeller had broken up. Your best indication for this sort of failure (including a broken water pump belt) is whether or not you have heat from your heater. No heat = no flow. However, that doesn't rule out a plugged rad or collapsed hose. If the lower rad hose feels very spongy at any point along its length, this could indicate the hose has collapsed internally (the inner hose wall can separate from the hose mesh between the inner and outer walls and collapse during engine operation). Lower hoses often have a light gauge wound spring in them to prevent this and you should be able to detect this. I replied to a question on how to change a water pump for a 1995 V6 that may help you.
OK, my own experiences in this matter, found the following: Thermostat was newer, water pump impellers looked great, hoses seemed OK. Turns out these cars are know for blowing head gaskets. The engine was overheating, and I was getting no heat out of my vents. I was adding water to the overflow like crazy. When I pulled my head gasket, it didnt have any major signs of blow out. Replaced it anyway, and that was the problem. Now the car runs cooler than ever (Temp at "R" in normal). Make sure you replace the Head bots with new ones if you have to do a head gasket replacement (as they are Torque to spec, meaning 1 time use). It really is a PITA to tear into this, many things have to be taken apart to get the head off. Take your time, and do it right.
If you do have to replace your water pump, replace the timing belt as well (as this is another issue with these vehicles)
Thermostat.
IF YOUR CAR IS HEATING UP(OVERHEATING) AND YOU STILL DRIVING IT, A FAULTY THERMOSTAT IS THE LEAST OF YOUR PROBLEM.
Water Pump or Thermostat. May have to change water pump to replace thermostat.
1) ONE THING YOU COULD TRY IS CHANGING THE RADIATOR CAP...IF IT'S BAD THE CAR WILL BOIL OVER AND APPEAR TO BE ALWAYS OVERHEATED WHEN ALL THAT'S REALLY WRONG IS THE LACK OF PROPER BACK PRESSURE DUE TO AN OLD/DEFECTIVE RADIATOR CAP. 2) IF THAT DOESN'T WORK YOU COULD TAKE THE THERMOSTAT OUT AND TRY DRIVING THE CAR WITHOUT IT IN AND SEE IF THE CAR RUNS LONGER BEFORE OVERHEATING...IF IT DOES THEN THE THERMOSTAT IS STICKING. THE THERMOSTAT COULD ALSO BE UPSIDE DOWN...IF IT IS IT WON'T WORK RIGHT. patricklaw1957@yahoo.com You might also check the timing.If it is retarded due to a bad timing chain or needing a tune up this will cause overheating.
White smoke from the exhaust indicates you have a blown head gasket or cracked head. Stop driving the car until this is repaired or you will do serious damage to the engine.
The thermostat could be stuck shut or the water pump could be bad. These are the two most common causes of this problem.
have you checked the fan
Check your electric cooling fan
Check coolant level Could be thermostat is not opening Could be a bad water pump
If this happened immediately after changing the thermostat, then the most likely problem is the thermostat was installed backwards.The spring side of the thermostat faces the engine. It's the spring that is reacting to the coolant temperature and driving the valve to open/close.When the thermostat cannot open, that prevents any coolant from ever getting to the heater core. Thus, you shiver a lot!Pop it out, flip it over and you should be all sorts of warm and cozy.See "Related Questions" below for more
Your car overheating can be from many of factors. If it is not overheating while you are driving down the road it could possible be your electric fan has stopped working. Another possibility is that your fan clutch has stopped working on your manual fan. The main possible reason though is the fact you do not have a thermostat in it. Without the thermastat your coolant isnt slowing down enough in the radiator to cool off so that it can cool your engine.
Did you replace the thermostat, and check the water pump? Does the cooling fan operate as it should? A plugged catalytic converter can cause overheating. If above items check out OK you need to check for leaking head gasket.