1998 Chevy S10 LS 3-door 4.3 v6 When I put the truck in a gear the select on the column doesn't register properly. What's the problem?

SOURCE: 1996 Chevy S10 stalls out 3 times before steady start

check for loose or cracked vacuum lines, and/or the rotor. It may not be making consistant contact.

SOURCE: 1998 chevy lumina, shifter on steering column,won't shift

Either the pin that connects rod to tranny is broken off, or there is internal transmission problems.

SOURCE: 1998 Chevy S10 front axle will not engage when put into 4 wheel

Normal thing that happens as long as onone (worked) on it, is the vacume hose going to the engage sevevo under the battery box has fell of on either end or is brocken on the way there. Then the once or now leaky battery acid ate up this same servo. then the cable going to the front axel breaks sticks falls off or even someone needing one climbed under your truck while parked somewhere to get one to replace their brokeen one now you don't have one then theaxel engage arm or gearset is damaged

SOURCE: How do you change spark plugs on a 2003 chevy s10

Most of them are pretty simple. I would recommend doing them one at a time so that you don't mix up any of the plug wires. Pull off the spark plug wire (twist the boot while you pull to release the boot from the plug), then remove and replace the spark plug with a 5/8" spark plug wrench and reconnect the plug wire (put dielectric grease inside the book if it looks dry in there). Do all three (two, four, six) on the passenger side. Now, move to the drivers side. The number one (front) and five (back) will be the same as the others. The number three (middle) is a little more challenging. You will either need to disconnect the steering shaft or use a wide angle swivel on your socket to be able to gain access to this plug. If you choose to disconnect the steering, there is a 10mm bolt, under the plastic housing, that connects the steering shaft to the steering gear. I would recommend a swivel though because it is a tedious job to get the steering put back together straight. Anyway, it's not too hard, just make sure that you only do one at a time. Good Luck!

SOURCE: troubleshooting codes

p0171-System Adaptive Fuel Too Lean

p0401-EGR

p0452-EVAP Fuel Tank Pressure Sensor Low Input

p0131-Upstream Heated 02 Sensor Circuit

Hope That Helps.