MikeStoke
Army Firefighter
Hi all, I am having problems with my 4 x 4 in the automatic setting. When I throw the switch sometimes it will engage and sometimes it wont. I read somewhere if your having problems with a vacuum leak to throw your heater on and engage your 4 x 4 and if it switches to defrost that you have a leak. My question is how do you know if it is my front axle seals or the vacuum pump? I am getting a light on the dash but it is not engaging in less I get out and throw the hubs into manual position. Any help is greatly appreciated. The dealer wants around $100.00 to test it. But you all know how tight $$$ is this time of the year!! Thanks in advance.....Mike