Check to see if there is water in the oil...If there is water in the oil then it could have a head gasket problem..Did you ever replace the thermostat? If it is stuck then it would also cause overheating...Excessive exhaust backpressure because of a clogged catalytic converter could also cause overheating..Also check belt tension and condition. A loose belt that slips may prevent the water pump from circulating coolant fast enough and/or the fan from turning fast for proper cooling...Another thing it could be is a faulty Water pump -- Any wobble in the pump shaft or seepage would call for replacement. In some instances, a pump can cause an engine to overheat if the impeller vanes are badly eroded due to corrosion or if the impeller has come loose from the shaft. The wrong pump may also cause an engine to overheat. Some engines with serpentine drive belts require a special water pump that turns in the opposite direction of those used on the same engine with ordinary V-belts... Also check the Fan -- With mechanical fans, most overheating problems are caused by a faulty fan clutch, though a missing fan shroud can reduce the fan's cooling effectiveness by as much as 50% (depending on the fan's distance from the radiator) which may be enough to cause the engine to overheat in hot weather or when working hard.
SOURCE: programming a 1995 toyota avalon key fob
To program a remote... note that you must not delay more than 10 seconds between any of the operations.
Driver's door open, all other doors closed, key removed from the ignition switch.
Insert key into ignitions switch, then remove it.
Press LOCK then UNLOCK on the vehicle door lock control switch at 1 second intervals 5 times.
close and re-open drivers door.
Press LOCK and UNLOCK on the vehicle door lock control switch at 1 second intervals 5 times
Insert Key into ignition switch.
Switch ignition ON and OFF once to program a remote transmitter code while retaining the original codes or twice to program a remote transmitter code while erasing the original codes. three times to check how many remote transmitters are currently registered, or 5 times to erase all registered codes.
Remove Key from ignition switch.
System should now lock and unlock vehicle. Once, twice or five times depending which mode has been selected. It will lock and unlock one to four times slowly, to indicate the number of remote transmitters registered if you chose option 3.
Press and hold remote transmitter LOCK and UNLOCK buttons at the same time.
Press LOCK remote button for 1 second: System should now lock and unlock vehicle once to confirm, twice to indicate registration has failed.
NOTE: to exit programming mode, close drivers door or insert key in the ignition.
NOTE: a maximum of 4 remote transmitters can be programmed
SOURCE: 2001 Toyota Avalon overheating please help!!!!
Your radiator fan stopped working maybe a blown fuse bad relay or radiator fan switch.When you drive the car get air and cools down when you are in park the fan is supposed to provide the air if needed but its not working. However the fan itself could be burnt out and may need to be replaced. Good Luck
SOURCE: where is the thermostat on a 1995 toyota avalon?
I believe it is on the water pump which is in the front of the 3.0 engine at the end of the bottom radiator hose.
SOURCE: Ford explorer 2000 antifreeze coolant reservoir
Ensure that there is no leak, checking all the coolant lines and the radiator.
If there is no leak and the car is consuming coolant liquid, then you may have a faulty head gasket.
What happens is that the head gasket allows coolant leaking and being vapourised inside the engine.
To find out if your head gasket is starting to go you can perform a compression test.
Regards.
SOURCE: 1995 toyota avalon, overheating,just changed
I do not see a good connection between the serpentine belt and the engine overheating suddenly.
Perhaps you have a lot of burnt belt rubber on the water pump pulley?
Is the upper radiator hose hot? If so the stat is opening. If you start the car cold with the radiator cap off you can watch for coolant starting to flow and make sure the stat works...if the flow is low you have either a blocked stat or poor belt grip at the waterpump. Have you flushed the radiator recently? After 15+ years your car could be ready for a cleaning.
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