Four wheel drive don't kick in - 2002 Suzuki Grand Vitara

There could be a few possible causes for your 2002 Chevrolet Tahoe not going into four-wheel drive when you engage the system. Some common issues include:

The four-wheel drive system may not be properly engaged. Make sure that the four-wheel drive switch is in the correct position and that you are following the proper procedure for engaging the system.

The four-wheel drive system may be mechanically damaged. This could be caused by a problem with the transfer case, the drive axles, or other components of the system.

There may be a problem with the four-wheel drive system's control module or other electrical components.

There may be a problem with the four-wheel drive system's vacuum lines or other mechanical components.

To troubleshoot the issue, you can try the following steps:

Check the four-wheel drive switch and make sure it is in the correct position.

Check the four-wheel drive system's control module and make sure it is functioning properly.

Check the four-wheel drive system's vacuum lines and make sure they are not damaged or disconnected.

If the issue persists, it may be necessary to have the vehicle inspected by a qualified mechanic.

If you are not comfortable performing these steps, or if the issue persists after trying these troubleshooting steps, it may be a good idea to contact a mechanic or a Chevrolet dealership for further assistance.

I would suspect you have a bad wheel speed sensor or a speed sensor defective... do you have an ABS/CheckEngine/4 wheel drive light on somewhere on the vehicle display... That might help fix the problem.

Same as all vehicle issues in the past 30 years

Check for codes & google them to see the issue

You have a dash light on --SO --DO SOMETHING

instructions are behind driver side visor

If wheels spin slow down and or touch brakes to allow abs to kick in

scrap it

It depend on how fast your going when you kick in four wheel drive. You should be doing no more than 20 mph for it to kick in.

sometimes you have to reverse for it to kick out of four wheel drive. Make sure you put the truck into neutral before you switch out of four wheel drive into two wheel drive. If that doesn't work, your transmission might be sticking.

Is it manual front hubs?

Vacume line is leaking and do not engaga fully. Vacume pipe an front wheels. 2 pipes 1 for brakes 1 for vacume. Pipe (rubber) connect by means of pushing it over the steel pipe. Easy to replace. Willem SA