Whith the car cool
1- Remove the radiator cap
2- Disconnect the TOP hose FROM the radiator
3- With a garden hose or a bucket of water ready
4- Start the engine
5- As old coolant fluid flows from the top hose to the floor
6- Pour fresh water on the radiator so it doesn't dry
7- When you see clear water coming from the top hose
8- You have rinsed the cooling system of the engine
9- Start pouring refrigerant on the radiator
10- As you start to see refrigerant pouring from the top hose
11- Now you have only refrigerant on your system as you should
12- Quickly reconnect the top hose to the radiator
13- The problem should be solved
SOURCE: 95 honda civic lx overheating
COULD BE COOLANT SENSOR,HEAD GASKET,CHECK THE TIMING,THE PROPER MIXTURE OF COOLANT,WATER PUMP.DID YOU HAVE IT CHECKED OUT?ANY LEAKS?HEAT WORK WITH FAN?
SOURCE: 1995 honda passport i have installed 2 thermostats
is the temp gauge getting hot as you drive the vehicle or does it remain at a constant temp? if no problem in coolant temp getting too hot (and overheating), then it should not be an issue.
you're sure radiator is filled with 50/50 mix of coolant & water to the top of the cap? if there's an air bubble trapped it could cause a problem. some cars have to be "burped" after refilling with new antifreeze.
if, however, its overheating, then i believe your radiator may be clogged preventing the coolant to flow across the radiator fins and cool properly.
try this. warm the car up (not the point of overheating, but hot enough for the t-stat to open), turn it off, make sure the electric fan is off (or unplug it is so equipped), then run your hand across the radiator. it should feel warm. if you feel cold spots, then that portion of the radiator is clogged preventing flow. new radiator is now in order.
hopefully its only a clogged radiator and not a clogged engine block.
hope this helped.
SOURCE: overheating 1999 cadillac deville
THIS SOUNDS CRAZY BUT, ON SOME OF THE OLD SCHOOL CARS, THEY HAVE A CLUCH FAN.. AND IF ITS BAD, THE CAR WILL OVERHEAT WHEN DRIVING AND COOL DOWN AT IDLE.. I DONT THINK THE CADY HAS A CLUTCH FAN, BUT I BET ITS IN THE FAN.. GOOD LUCK KEITH..
SOURCE: 2002 dodge 1500 Changed radiator, thermostat, and hoses. No heat
Why was radiator replaced?Did it have heat before ? If it was plugged, the heater core may also be plugged. Try flushing it with a water hose in both directions. I dont know why the botton radiator hose would be cold, the radiator should be a uniform temp and the air coming through the radiator should be HOT, when the engine is at operating temp. What condition was the old coolant? if it was rusty, the water pump may have lower flow than normal.
SOURCE: 1991 honda accord is overheating. Installed new
When the car is completely cool,check the electric fan(s) for smooth rotation.
Clean/check/change the thermo sensor,contact and wire.
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Excavate air pocket in coolant system / check for head gasket leak
This test will kill two birds with one stone.
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MAKE SURE THE COOLANT SYSTEM and ENGINE IS COLD!
RAN THIS TEST IN A WELL VENTILATED AREA ONLY!
You will spill some coolant during this air pocket purge test.......BE
KIND TO THE ENVIRONMENT and ANIMAL please clean up after the test!
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Put the front end on a pair of ramp or park your car on a VERY STEEP HILL (radiator facing top of the hill) .
Top of the coolant reserve tank
Let it ran for 10-15 minutes.
Monitor for air pockets escaping from coolant reserve tank.
Small amount of bubbles is OK at 1-5 minute mark
After the thermostat open up (after 195 F warm up) at
5-12 minute mark or after high idle you should see less bubbles.
If you do not see any in rush of bubbles then your thermostat may be
partially stuck or rusted badly inside the thermostat hosing.
Give the thermostat host few gentle taps.
If you see larger bubbles surfacing after 15 minutes then should do a
hydrocarbon (HC) dye test to test for potential head gasket leak.
Let engine cold down and top off coolant reserve tank.
Start monitor for coolant lost
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A coolant flush is require every 2 years or 24,000 miles.
I recommend the thermostat that has a relief pop-let to reduce the change of burst radiator and coolant hoses.
Make sure you get a new thermostat gasket,black RTV and fresh coolant for the job.
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Thank a bunch but hopefully after I change the water pump it will not overheat.
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