Question about 2002 Toyota Avalon
The cooling temperture send unit is send out of range data to the computer (ECU).
The corrective is to buy a coolant sending unit and replace it.
The unit is withing 6 inches from the thermostat housing.
Since your car is a 2002 and probably has around 80,000 miles on the odometer so it's a good time to all of the following on the same time.
temp. sending unit / clean the contacts
drop bottom coolant has and flush radaiator
change 195 F thermostat and gasket + seal with black RTV.
Fill 50/50 mix coolant. /// if you live in aub-zero temp area then read the chart on the bottle for the recommended mix
Please rate my answer if it's helpful to you.
Posted on Dec 12, 2009
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Posted on Jan 02, 2017
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