Question about 1994 Lexus GS 300

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CAR RUNNING HOT

I do not have a bad head gasket so what will make it run hot top hose is hard and no water moving

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  • balcckechef2 Oct 29, 2008

    so dont know what to do

  • balcckechef2 Oct 29, 2008

    could it be a thermostat not working were is located

  • balcckechef2 Oct 29, 2008

    is the thermostat in the upper hose are the lower hose

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First thing I would do is change the thermostat. Most of the time they are under the upper hose on the block. What kind of car do you have, and how many miles.

Posted on Oct 29, 2008

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Check all the cooling running. rediator, upper and lower water hose, heater cord. You have Block or a leak.
no cooling return from the engine block.

Posted on Oct 29, 2008

  • Frank
    Frank Oct 30, 2008

    follow the upper water hose. the thermostat is where the hose is atttached to the engine block.

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1 Answer

New thermostat, fan switch , fan comes on, still overheats . Upper hose hot, same lower hose but both are hard feels like the water is not circulating . Bad water pump, or head gasket ?


Most likely pump. Head gasket will usually put hot gases into the cooling system and will appear as bubbles in the cooling fluid container. It may also feed lubrication oil into the coolant. The coolant pump is driven by fan belts. Make sure you are not missing any belts.

Mar 09, 2015 | Cars & Trucks

1 Answer

Coolant leak rear engine


leaking hose.
leaking fitting
or head gasket leaks.
with hot motor driven 20 miles
the system is at 14psi pressure.
so all leaks are childs play easy to find, open hood, look see the bad part leak, easy huh? super easy.
its dripping or squiring, telling you, IM bad.

one hard spot is water pump, it slings the water running.
not running, drips below pulley.'

Nov 30, 2013 | Toyota Cars & Trucks

1 Answer

My 2003 regal is running hot and slowly leaking all the coolant out. Can anybody tell me what the problem is?


Yes, you are running hot from leaking all your coolant out. No one can tell you where it is leaking without looking at it. Could be a hose leaking, the radiator, a bad head gasket or intake gasket, the water pump...if coolant is leaking from the front of the engine, that could be the water pump or radiator hose or a water pump gasket. Pretty common for the water pump to leak when it is worn out, that's how you know when to change it.

When you fill the radiator and overflow tank back up to full, does the engine still run hot? If it does, I would not advise running it-have a shop diagnose it before more serious damage occurs. Head gasket repairs can get very expensive-that is the danger you are facing, and if the head gasket has already gone bad from overheating, continued running of the engine can cause you to have to replace the engine. Overheating is a major cause of early engine failure.

Try to determine where the leak is, from where it drips off the engine. The coolant constantly circulates from the engine to the radiator and back into the engine. The heater hoses circulate coolant from the engine to the heater core in the heater case and back into the engine. Besides the overflow tank, these are the only places coolant would be on the car. The engine can leak coolant from a lot of places, but if leaking to the outside, you should be able to spot where it is coming from. Good luck.

Sep 18, 2013 | 2003 Buick Regal

4 Answers

I have a 92 accord LX. I have replaced the Radiator and the hoses, thermostat and fan switch. Car is still reading hot in a matter of 5 to 10 mins of running. Fluids are topped off. I am not sure why it is...


If you have no air in the system, cooling fans & water pump are working properly, and you didn't install the thermostat backwards, you could have a head gasket problem. Also, make sure the gauge is reading correctly, and the engine is actually hot & the gauge is not giving you a false reading.
If you installed the thermostat upside down, it will not open to allow coolant to circulate. This 5-10 minute time frame you give points to a water pump or thermostat.
I hope this helps.

Sep 23, 2011 | 1992 Honda Accord

1 Answer

My Grand Prix stared running hot. We replaced head gaskets and intake gaskets, replaced water pump, thermostat, and flushed radiator. My car is still running hot. The heat not blowing hot even after new...


are you sure that the radiator is not clog ,also check the cap for broken gasket also check the hoses for stiffness i would also wanna run it without thermostat to see what happens ,some times they come defected from manufacturer good luck

Mar 30, 2011 | Pontiac Grand Prix Cars & Trucks

2 Answers

My truck keeps over heating and i was wondering if there is a thermostat on a 91 4x4 pick up v6 and if not what could be the problem


yes, there is a thermostat. That's a good place to start.

Please see my tip at http://www.fixya.com/cars/r5929960-s_thermostat . These are generic instructions. If you get stuck or need specific instructions for your car, please get back to me.


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Dec 12, 2010 | 1991 Toyota Pickup

2 Answers

Overheating replaced the thermostat it was find and its leaking out the side of the over flow tank.


sounds like a blown headgasket. when it is cold and you start it squeeze a radiator hose while it is cold and if it is hard(has pressure) then head gasket. also check for white milky antifreeze. CAUTION cooling systems are under pressure and contain boiling hot water. If you are not experienced do not attempt to fool with the radiator /cooling system. blown gasket repair $400-600

Nov 03, 2010 | 2002 Mazda 626

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