Chevy tracker 4 cyl 4wd 2003

Service Engine Soon came back on and the car is again stalling ????? Did you have it checked for DTC'S - diagnostic trouble code's ? Service engine soon light on , codes will be present !

Go under the vehicle and check the four wheel drive linkage.

The Service Engine Light means, time for an oil change and other regular maintainance items like engine air filter, check all other fluids, lube chassis, it's a reminder to take care of your car. When the maintainence is done, then you or whoever works on it resets the light, and it will come on again at the next proper interval. Every 3000 miles or 3 months whichever comes first is the standard.
Take good care of your car, it will cost you a bit, but your car will be happy and it will take good care of you. Neglect your car, it'll cost you much much more and you'll be sorry.

Injector maybe ! What's that cylinders comprssion ?

THIS IS A WARNING LIGHT YOU SHOULD TAKE IT IN A GET A CODE READ AT LEAST. BETTER SAFE THEN SORRY

This could be a number of things causing this ...most common is that after you fill up the gas cap is not fully tightened...make sure it "clicks" 3 times while turning.The other common problem is that the gasket on the gas cap is old and thus does not seal the tank/fuel filler area...check with replacing the cap.If neither correct then you will need to bring to a service center or dealer to run a code check...maybe a bad O2 sensor or a code for the transmission.

You should disconnect the battery cables, negative cable first then disconnect the positive cable from battery and wait ten minutes (this is a good time to clean the terminals and connectors at tis time). The check engine light should be reset and disappear if all is well.

sound like problems in transfer case shift module.

pull atc 25 amp fuse in underhood fuse center and 10 amp 4wd fuse inside cars fuse box,your problem is in control box behind kick panel on pass. side ,corrosion build up,

Alot of times a voltage drop to the O2 Sensor can cause your check engine light to come on. Even tho the O2 sensor is wrong fine.