Question about 1994 Geo Tracker
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Posted on Jan 02, 2017
this may help
EGR Theory. EGR serves one purpose and one purpose only. That purpose is to reduce Oxides of Nitrogen (NOx). Undernormal combustion, Nitrogen(N2)Oxygen (O2) in the air and Hydrocarbons (HC) in the fuel combind into water(H2O) Carbon dioxide (CO2) and the Nitrogen remains unchanged. Under very hot combustion temperatures, the Nitrogen reacts with the other two byproducts and forms Nitrogen oxide (NO). After being released into the atmosphere, it picks up another Oxygen and becomes Nitrogen dioxide (NO2). In the presence of sunlight,
it combines with other compounds like Hydrocarbons and forms Smog. Since exhaust gas is inert (very stable) it doesn’t burn again. So by being introduced into
the combustion chamber, it will lower combustion chamber temps enough so that
the Nitrogen doesn’t react with the other compounds and is passed unchanged out
the tailpipe thus not contributing to smog. Now, since exhaust gas doesn’t burn, it
doesn’t exactly help with combustion. At higher RPM’s, this really isn’t noticable,
but at idle, the reintroduction of exhaust gas will cause a very rough idle and can
cause stalling if to much is introduced into the combustion chamber
Posted on Mar 07, 2009
I had the very same problem with my 94 tracker and it turned out to be something simple. My check engine light had popped on after it had hit 100,000. I went through all of the suggestions that people had suggested (unplug battery......etc) and still to no avail. Searching the internet, I came across a website called suzukiforum.com and there, this guy was able to help me with my problem. It turned out to be a maintenance switch that kicks on every 50,000 miles. This switch is like a secret that the auto manufactures use to ploy owners of their cars to bring to the dealer and then rack up the dollars in unnecessary "repairs". The switch is located under the dash and can be hidden anywhere. From the assistance of the guy on the forum, he was able to send me photos of this damn switch and possible locations where it may be mounted. I found mine in about 5 minutes, where it was attached to the steering column. It's a tiny switch, that you slide up or down, depending on what position it is in upon finding it. If it's up, then slide it in the down position and visa versa. Once you do this, the check engine light will go off. Make sure you do not have the car running and you can even unhook one of the battery posts, just to make sure you don't hit anything while rooting around under the dash. Good luck!
Posted on Apr 30, 2009
It needs a fluid change,and filter,in the transmission,also,add a additive called LUBEGUARD from napa auto parts,when you ask for the additive,be sure to get the one for gm,this additive keeps the valve body slick,and moving,this is the problem,your filter,and ,or,the fluid is dirty,and causing hydraulic problems,and valves to stick in the valve body in the transmission.
Posted on Mar 15, 2010
first you remove the wheel then the break caliper then remove the locking hubs just remember to lay out the parts in order a special tool is called for but this job can be done without it you have to use a small cold chisel and a hammer to tap the large nut counter clockwise to remove, you can then remove the outer bearing and the rotor and hub assembly look on the back side reomve the bearing seal and inner bearing be sure to pack your new bearings with grease before you reassemble . takes less than an hour.
Posted on May 05, 2010
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