I try to kick my four wheel drive in but the light just flashes and my heater stops blowing

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

My 93 xj6 doesn't blow or anything but I found that if I kick the blower under the string wheel. It comes on. Then it's blowing cold on the dash and hot out the center counsel. Where do I kick to fix that? There are buttons that light up by the steering wheel. That look like the seat heater button. Is there a way to choose to make the thing blow cold in front and hot in back? 989-657-2563

you need to stop both front wheels from turning to see if 4 wd is working
just stopping one side means nothing as the diff action is operating and making the opposite wheel go faster

you could try flushing the cooling system. this could result in a cleaner heater core, which might help the problem. good luck!

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.

There is a four wheel drive relay unit located up under your dashboard on the passenger's side that has gone bad. 2 bolts hold it in, and just a wire bundle connector to plug into. Costly to replace. Maybe about $200 just for the 4 WD relay unit.

I have the same problem. A guy (not a mechanic) told me that it could be the matrix, which is expensive, or simply the water pipes. If it is the matrix, check on ebay before ££ spending hundreds ££ at a garage, I saw one for £60. I've got my pajero booked in at the garage.. Let's see what they say!

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

if it is electronic there is probably something wrong with the wiring..

but if it is manual...it might be the actuator........