Hi Eric
This sounds to me like the cooling system has an airlock OR the 'stat has been put in backwards. Try running the engine for a short while with the rad cap tightened down to the first stop only and see if that allows the airlock condition to be alleviated.
Hope this helps you out.
-Steve
SOURCE: 92 isuzu rodeo overheating still
hey
u says that u didn't replace the thermostat yet
Your thermostat is sticking. DO NOT DRIVE if the car
overheats, you can do some serious engine damage, if you haven't done so
already. Get the thermostat changed out immediately.
What happened is
your thermostat is sticking. It was stuck and you saw it overheat (and should
have stopped immediately). The added pressure from having a stuck thermostat
pushes the fluild into the overflow.
The temperature may have gone back
to normal if the thermostat "finally" opened. However, since the thermostat is
sticking, it is unreliable and I would get it replaced.
Driving when the
engine overheats can easily cause gaskets, such as the head gasket to fail and
heads to warp. If this has occurred, you're looking at a new engine.
SOURCE: Car overheating
there should be a cap some where but if not there should be some sort of hose coming out of the top of the radiator pull the hose and fill it up from there, and top it all the way off, make it spill, all the way full! and when an engine over heats it usually ruins the thermostat so i would recomend replacing it also
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.
===
Excavate air pocket in coolant system / check for head gasket leak
This test will kill two birds with one stone.
===
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!
===
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
===
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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SOURCE: 2001 Isuzu Rodeo 4 cyl 2.2L 2WD that is overheating
check the electric fan conector plug some times is rusti scratchet whit a sharp scruwdriver remove the rusti or dirt on it this happens many times and step two check the relay and thats it (this is the first step a mecanic to search)
SOURCE: 1997 honda civic over temp. Have replaced
Generally if one hose is hot, and the other hose is cold it indicates that they water is not circulating. You could have a defective thermostat. Take the thermostat out and run the engine without it. With the radiator cap off you should see a lot of water moving through. It that is the case, replace the thermostat and you should be ok. If there is no rapid movement of water it may be the impeller on the water pump came loose. This is rare, but it can happen since the impeller is usually pressed on the shaft. You should also check and see if you get a lot of bubbles when the car is running and the cap off. This often indicates a blown head gasket. Hope this helps.
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