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97 Mazda B4000 4wd Issue

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dmelvin
User

Apr 13, 2014, 5:57 PM

Post #1 of 3 (2255 views)
97 Mazda B4000 4wd Issue Sign In
Greetings,
So this winter I discovered to my dismay that my 4wd would only randomly work on my Mazda truck. Off and on I would turn the switch to the 4wd position and it would the vast majority of the time have the vehicle remain in 2wd. Any input on this issue would be vastly appreciated; my initial thoughts go towards a leak in the vacuum line.


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Apr 13, 2014, 7:15 PM

Post #2 of 3 (2241 views)
Re: 97 Mazda B4000 4wd Issue Sign In
I believe that your truck doesn't use vacuum to engage the front end. The Ford Ranger and Mazda of that year had the automatic locking hub system that would engage the front axles to the hubs when the transfer case applied torque to the front drive shaft. Often times on those the locking hub on one side would grind or not engage causing no four wheel drive.

Does your transfer case lock the front drive shaft to the rear drive shaft when the four wheel drive doesn't work?

If the transfer case motor runs and the transfer case locks the front and rear drive shafts together, but you still don't have 4wd, you need to inspect the hubs.

If the drive shaft doesn't lock, you either have a mechanical problem in the transfer case or an electrical problem with the transfer case shift system. The GEM controls the functions of the 4wd and does store codes if there is a problem in the system. You may need to have the GEM scanned if you find that you have an electrical issue.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on Apr 13, 2014, 7:33 PM)


dmelvin
User

Apr 13, 2014, 8:51 PM

Post #3 of 3 (2226 views)
Re: 97 Mazda B4000 4wd Issue Sign In
Okay Ill try to check tomorrow and get back to you on your questions, thanks for the initial input





 
 
 






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