Question about 2000 Jeep Grand Cherokee

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I have to give it gas to turn over and when I come to stops it heats up, I just changed the water pump,thermostat,and had raidiator cleaned and cap changed

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The radiator fan (motor) is not spinning.
When you drive, there is enough air flowing through the radiator to keep the temp down. When you stop, the fan has to maintain the air flow.
Change the fan motor.

Second possibility:
But not as likely as fan motor:
The lower radiator hose is collapsing like a paper soda straw because the water pump is creating enough suction pull to squash it.

Posted on Sep 28, 2009

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Two problems are unrelated. the overheating can be caused by a lack of electric radiator fan operation. the morining problem can be caused by a dirty throttle body
check them both out and let me know

Posted on Sep 28, 2009

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3 Answers

Changed the water pump and now it over heats


Many people overlook the cooling system pressure cap cheap to replace but often overlooked , the radiator may also be internally restricted. Rad shop would be able to confirm if this is the case. rad cleanout and engine block flush may help. Hopefully this is useful to you.

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I have a 1998 honda acord 4 cylnder non v teck with new raidiator and new water pump and it still runs hot overheats what should i do next to try to fix this


Always change the thermostat after every time it over heats.
And while you are at it, you should probably do a cooling system pressure test, to make sure you don't have a bad head gasket.

May 06, 2011 | Honda Accord Cars & Trucks

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If i just rebulit my motor put in new cooling system sencers and car is still over heating what did i miss


Raidiator,cap,water pump.Try the cap first cause if there is just the smallest crack in the rubber seal it will not hold pressure and cause it to overheat.

Dec 30, 2010 | 1999 Chevrolet Malibu

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Is over heating i change the thermostat n the hoses and the raidiater is not leaking


heater core may be clogged up or your water pump is not workin

Dec 06, 2010 | 1999 GMC Jimmy

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Water comes out of the over flow bottle(i checked the cap)


make sure you dont over fill the radiator bottle past max, something else to try is run the system with out the cap on for a few minutes at idle to expel any air pockets in your cooling system.

Jun 22, 2010 | 1992 Toyota Celica

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Put a new raidiator in my jeep and have no heat and it gets hot how do i fix it


I just had this problem and thought it was the thermostat also. Installed a new thermostat and still had the same problem. It ended up being the water pump. When we got the old one out all of the blades were totally rusted off and it wasn't circulation the water.

Oct 19, 2009 | 1992 Jeep Cherokee Sport

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Aloha,have 98 base mustang, overheating after many replacements


i would change the water pump and check for plugs in the heater core

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When I excelerate or stop for a long period of time my car starts over heating, what do you think the problem is?


It could be a faulty: 1-Radiator fan, Check the fuse. 2-Bad Thermostat, Change the Thermostat 3-Weak Water pump, Change the Water Pump.
Easiest thing to do is see if the fuse to the Electric radiator fan is bad. If it's good, then start up the car and see if it goes on when the temperature starts to get hot. I think the fan activates around 190". If the fan does not turn on, check for lose wires and bad grounds to the electric motor. Take caution, fan may activate without warning.
If the electric fan works good, then change the Thermostat. It may have failed and stuck in the shut position. After changing the Thermostat and problem still there, good chances are that it's the Water pump that may be faulty.
Before you go all though that trouble, check the Antifreeze level, make sure you have lots in there and just don't look at the radiator antifreeze reservoir. Look in the filler cap and the radiator cap. The plastic can become stained making it look like it is full but it's really empty.
Good luck and hope this help. Oh don't buy any radiator flush, it may clean up any dirt that my be plugging up any holes in the system, you do have a 6 year old car.

May 11, 2009 | 2003 Kia Spectra

2 Answers

2001 Jeep Cold RAdiator


Does your temp gauge read normal? if it does then the thremostat is ok,but sadly the water pump is going bad this is typical of jeeps at an idle the heater cools off because the water pump fins are worn enough to not circulate through the heater core and when you step on the gas the increased rpm move the water fast enough to circulate through the heater,it is possible that the heater core is plugged but I doubt it as a plugged heater core would not get hot either it would be cold or just luke warm all the time.

Dec 25, 2008 | 2001 Jeep Grand Cherokee

3 Answers

Car overheat frequently and at time the engine sound is very loud


Several things can cause this overheating. Have you recently done a:
1. Check Hoses for Leaks
2. Check Radiator for Leaks --- Also, Change Radiator Cap ( can loose pressure there if
cap is bad)
3. Check Water Pump for Leaks. If Water Pump is bad, you will hear a loud noise from it
4 Complete Tune Up? Should be done at least 1x a Yr. Depending on how much you drive the Vehicle. Includes: Plugs, Plug Wires, Gas Filter, Air Breather Filter, PCV Valve, Adjust Timing,
Check Belts -- see if worn
5. Changed your Thermostat & Gasket and have the correct degree Thermostat in the Vehicle?
6.. Had your Radiator Rod and Cleaned out?
7. Temperture Sending Unit (located near Thermostat) could be bad
8. 02-Sensor (Generally located in the Exhaust Manifold - needs a socket with a space in it
to allow the Socket to fit over this top wire of the 0-2 Sensor )
9. Change oil and oil Filter.
10. Change Gas Tank Cap ---

Do all this yearly ( except the Radiator Rod & Clean ( do every 2-3 yrs), and you should not have
any over-heating nor stalling out, etc. and should pass emissions as well.

Nov 25, 2008 | Hyundai Elantra Cars & Trucks

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