Question about 1995 Ford Econoline

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Overheating engine engine seems to overheat but not the radiator have replaced the thermostate but didnt change .the water pressure also seems hi in the radiator

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  • Anonymous Jul 15, 2008

    or van is over heating when the air conditioning is on...we were told the radiator was leaking ..it is not.. we replaced the thermostat..it did not help..then someone said it might be the fan clutch..we have not attempted to fix yet.

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Check your freon level on your AC system. If unit is low, it can actually put out more heat in front of the radiator. Does it overheat when the AC is off?

Posted on Jan 04, 2009

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2 Answers

2007 nissan exterra overheats


Hi Kim,

I can feel your frustration. It sounds like you've done all the logical stuff already. The "donut hole" in your process would seem to be not changing the water pump. The water pump as you might imagine, is responsible for circulating (pumping) the relatively cool water in the radiator into the running engine that contains the hot water. Hoses connect the two together. A thermostat is between the radiator and the engine. Once the water in the running engine gets to a certain temperature, the thermostat opens allowing the water pump to send cool water into the engine and hot water out to the radiator to be cooled. The heater core is usually on the passenger side firewall area.

It sounds like the water pump is the only thing left to change - if it isn't working - it can't circulate the water - and will result in overheating. Lastly, a clogged heater core shouldn't cause the engine to overheat - in fact, if the engine begins to overheat, you should turn the heat to HIGH fan and HIGH temperature to help remove some of the heat in the coolant.

Good luck!

Apr 11, 2014 | 2007 Nissan Xterra Off Road

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Hi I havs a 95 HZJ75 landcruiser with a 1 HZ motor . the engine started overheating I have replaced water pump ,radiator thermostate now i have oil in the radiator and engine overheats within 10 min...


i think you may have overheated this unit again and possibly have crack or cracks in the head around the precomb to exhaust valve area, and a few thou bend in head too. Question :- Do you have an after market turbo on this unit?

Nov 17, 2012 | 1995 Toyota Land Cruiser

1 Answer

1999 grand prix gt overheating. Changed thermostat, water pump, upper radiator hose. Please help!


does the upper and lower hoses seem to be the same temp when car begins to overheat? ore the radiator cooling fans coming on before the car overheats? did you pressure test the cooling system and radiator cap? also may want to remove the lower hose and flush the radiator. is the check engine light on and does it run bad?

Aug 03, 2011 | 1999 Pontiac Grand Prix

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I had my 4g63 engine changed to a 4g64 in my gallant and from that day i have had overheating problems. i have changed hoses, fans, radiator, radiator cap, and even skim the head of the 4g64 engine, but...


Not to sound too basic, but what shape is the thermostate in and is it in properly? I have seen them placed in up-side down before. I'd check it or replace it, be certain of proper temp for thermostate

Thanks,
Tom

Jun 19, 2010 | 1998 Mitsubishi Galant

1 Answer

My pulsar in overheating put new coolant in no change fans dont seem to be working but engine was hot and gauge showing only halfway, cant find the thermostate is it in the housing the top hose is...


Make sure the fans are coming on or it will over heat. If the fans come and the gauge is reading hot check the thermostat. Follow the top radiator hose to the engine block it probably has 2 bolts holding the thermostat housing on.

Apr 17, 2010 | 1990 Nissan Pulsar

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Have a 2000 grand Cherokee 4.7, car boiled on me so replaced therostat, didnt fix, replaced clutch fan, didnt fix, replaced thermo fan, didnt fix, replaced water pump, did both head gaskets, new radiator,...


You need to pressure test the cooling system. Unless you had the heads magnafluxed or inspected very carefully, there could be minute cracks causing the problem.

This is the #1 problem with any engine where boiling takes place due to the expansion power that steam has the capability of producing.

The cylinder walls could also have cracks in them, there could also be a freeze plug that is leaking slightly, causing the engine to overheat as it can't build the proper pressure.

sometimes it's a better move to get a low mileage used motor, than to attempt to repair one that has high mileage and this type of suspected damage.

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Feb 20, 2010 | 2000 Jeep Grand Cherokee

1 Answer

Overheating


  1. There are many different reasons that can cause an engine overheat, but they all have in common three aspects. The three aspects which all engine overheat factors have in common are that they cause that the heating system can not get rid of heat, they cause a loss of coolant or they directly cause too much heat in the engine.
  2. One first problem which might be the cause of an engine overheat is a problem with the radiator cap and the pressure it holds. If the radiator cap does not hold pressure correctly then coolant could boil and therefore the engine would overheat. Another reason might be caused by thermostat failures; it is recommendable that you check it.
  3. The car engine might also overheat due to coolant leaks such as those from the radiator, the hoses, the water pump, the freeze plugs or any others. Also, problems in the water pump could be the cause and therefore you should check it and replace it in case it is needed.
  4. Some other reasons by which the car engine could overheat are problems in the exhaust system which you can discover by checking vacuum readings, pipes and converter. Besides, you should also make sure that the radiator hose has not collapsed and the ignition timing is working properly.
  5. You should also check the electric cooling fan by making sure that the fan motor, the relay and temperature are correct or otherwise it could cause the engine to overheat. Besides this, you should also check the radiator in case there are any debris in it as well as you should check its hose in case it has collapsed.
  6. It is also recommendable that you check the antifreeze concentration which should be 50/50 in order to be correct, otherwise it could cause the car engine to overheat. If you do not find why your engine does overheat, you should ask a mechanic or an expert for advice. You should not try to fix this if you do not have the proper tools and general car knowledge necessary for it.

May 01, 2009 | 1993 Chevrolet Camaro

2 Answers

Dodge 318 overheating.


HI. It could possibly be the the thermostat is stuck shut. If thats the case when the vehicle warms up it will probably overheat all the time. The best way to tell is buy a new one and change it. They are usualy around $10.00 at any autoparts store. If you change it and it still overheats, it could be the waterpump.

Mar 15, 2009 | 1983 Dodge Pickup

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