1994 Geo Tracker
1.6l 8v I4
4 wheel drive
. I was having trouble going 45 on the freeway and it died every time I stopped.
I've spent the last week fixing what was wrong and now she runs like a dream.
Fuel injector seals- to find the correct o rings go to Orielly auto and look at the box of rings they have this is where you will find the upper o ring then order the package that has the two lower o rings.This is a throttle body injected motor so there is only one injector when the seals go you are not moving. The motor will flood every time you try to start it. If you find yourself in this situation put the gas pedal to the floor to kill the fuel injection.
New spark platinum plugs be sure they are the plugs for the 8v and gapped to .028
Cap and rotor make sure you put the rotor on right
New plug wires
Replaced fuel line
Iac valve. There are three screws holding the iac valve cover in place. It is located on the lower left of the throttle body. Remove the cover and spray the piss out of the inside with carb cleaner. While spraying, gently push the valve spring in. If you still can't get the valve to work your idle will be royally screwed up. A quick fix is to take 6 quarters and electrical tape them together then shove this in the iac housing.
Exhaust manifold- the stock one is a garbage thin wall casting and they love to crack. You can pick up the aftermarket one it is a lot better quality or you can patch it temporarily with quick steel. That's all I did and its still on.
O2 sensor- surprisingly easy to remove I put a vice grip locked as hard as I could on it then used a 6' pipe for a breaker bar and got it to come off right away.
Be sure there is gas in the tank I know it sounds stupid but just check.
Oil change- 4.5q of 5w-30 full synthetic and a filter. Changing the oil is a priority as soon as you fix the fuel injector seals. When the engine floods it pisses gas into the crankcase and out the exhaust THIS WILL CAUSE A NO START AND KILL THE MOTOR IN SHORT ORDER. When I changed my oil no bullshit it was so diluted with gas it poured out just like water.
Now start the little beast and adjust the idle. There is a screw on the front left of the throttle body cover by a rubber plug. The idle at a cold start should be 2000 rpm for a little bit then drop to 1500 then when fully warmed it will drop to 800 rpm.
The timing belt should be replaced
The body of this geo was pretty rotted out and I didn't have any sheet metal around so I just screwed some pressure treated plywood to the whole floor.
The back seats are pointless to me because it is only me and the wife and the dogs so I removed them completely. Now there's actually a decent amount of room in the back for cargo.
The headlights on trackers are pretty dim so I mounted some halogen off road lights in front of the grill.
Finally I took care of the paint. It used to be purple with 90s graphics on the side. I redid the paint with 4 cans of dark forest rust oleum camo spray paint. Then I bombed the ugly peeling rims and trim with flat black. Looks pretty good for about 30$ in paint.
Geo trackers may not seem like much when you think about it because of their low power and small size but that's what makes them awesome. If you don't believe me take one off road. I can chock any one of the tires with a cinder block and drive right over it no problem. These little trucks are very nimble and fuel efficient too. There is a pretty decent aftermarket for them and if you do a little research you will find what they can actually become. Every time I drive this little green beast it reminds me of the old military jeeps just cool as hell.