Where is the temperature sensor located on a 4 cylinder 1991 Toyota Camry DX? I have a Haynes manual, but it covers various years and engine sizes. I purchased a replacement but I am left puzzled. There is an odd looking sensor just above the upper hose on the block with a single wire connector. Is this it?
Yes. It is screwed into the termination piece of the upper radiator hose. See here p44 and 169
http://www.turboninjas.com/camry/eg1.pdf
SOURCE: Difficulty to replace EGR valve in 1999 totyota camry 4-cyl automatic
If you have small hands it can be easy. The space between firewall and EGR is tight but it wasn't too difficult to remove. The vacuum hose at the bottom was hard to pull off and I ended up cracking it and had to splice it. It was more difficult to re-install the EGR then remove it. I had a difficult time with keeping the gasket aligned while bolting it in to the lower tube. I took a few attempts. I suggest when replacing the EGR leave the mounting bolts loose so you can more easily align the metal tube. I would tighten the metal tube at the bottom of EGR first then tighten the upper two mounting bolts on top. It took me about 5 minutes to remove and 15 minutes to replace. I would be sure to clean the IAC too after cleaning the EGR. I sprayed throttle bottle cleaner down the bottom hole located on the throttle body and let soak about 15 minutes then start and run the engine a minute and repeat the process. This helped smooth the idle while stopped at a light. It also stopped the idle from shaking and almost stalling the car out at a traffic stop when the engine was warm.
SOURCE: 2001 Toyota camry 2.2 L 4 cyl engine timming belt replacement
The 2001 Camry 2.2 has a timing belt.
Recommended change interval is 90,000 miles.
There is no good reason for putting the replacement off, as the belt may be stretched slightly when it nears the rec replace interval, and your mileage may suffer because the engine is not in proper "time".
If the belt jumps time or breaks, it will NOT damage the valves.
SOURCE: 1991 Toyota Camry Temp gauge inoperative
Switch ig. on, ground the sender unit wire for about 3 seconds see if the temp. gauge moves, if so change sender unit, if not then it is a faulty gauge reader.
SOURCE: Need to change the thermostat on my camry
follow the lower radiator hose to the housing ...do not over tighten the bolts they are on an aluminum housing and the bolts will strip..dont put it in the wrong way ...the little pin that is on the valve should be up
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