On a 2.0L it is top leftside of the valve cover. It is a yellow handle that sometimes is broken off and it's just a little plug looking thing on the valve cover.
There are 2 sensors. One in front of the catalytic converter and one behind it.
at the rear of the engine on 2001 2.L also
1990 was the first year of the Geo Tracker. 1999 was the first year of the Chevrolet Tracker. So the answer to your question is 1999.
Where is the transmission fluid dipstick located on 1999 BMW 323 auto
There is no dip stick just a plug to be removed about 5 inches up on the right side of the trans. If fluid runs out that opoening, it is full. On my 1999 S10 pickup the trans dipstick is located left and in front of the distributor cap (4.3L).
195/75/R15
Under the hood, behind passenger side of engine, close to firewall.
The coolant temperature sensor on a 1999 Chevy Tracker is typically located near the thermostat housing, which is situated on the engine block. It may be found on the front or side of the engine, connected to the cooling system. To access it, you might need to remove some components or hoses for better visibility. Always refer to a service manual for precise location and instructions.
The low side pressure port for the 1999 Monte Carlo should be on a pipe against the firewall. It is just to the left of the Dipstick.
Where is the automatic transmission dipstick located on a 1999 VW golf GL
behind the glove box
where is my hood latch located on my 1999 Chevy silverado pickup