1991 Mazda b2600i extra CAB, 4X4 and the remote free wheel stopped working.

Tiny
RETROSK8
  • 1991 MAZDA B2500
  • 30,000 MILES

Hey my name is Zac and I own a manual 1991 Mazda b2600i extra cab. At the end of winter my 4x4 stopped working and the remote free wheel (RFW) button went out (The light). I've been trying to figure out what the problem for awhile now. The transfer case engages and the drive shaft spins. So i'm guess that the Front diff might be the problem out the RFW is not working anymore. Can you help? BTW (30000 on engine and transmission)

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Sunday, June 17th, 2012 AT 7:13 AM

6 Replies

Tiny
RETROSK8
  • MEMBER

A 2600 not a 2500

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Sunday, June 17th, 2012 AT 7:14 AM
Tiny
KHLOW2008
  • EXPERT
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Here are the schematic for the RFW and possible causes.

SYSTEM WILL NOT OPERATE

FREEWHEELING-TO-LOCK (2WD-TO-4WD)

a) Faulty transfer case switch

b) Faulty control unit

c) Faulty lock solenoid

d) Faulty vacuum actuator

e) Vacuum leak at actuator or reservoir

f) Faulty 1-way check valve

LOCKUP-TO-FREEWHEELING (4WD-TO-2WD)

a) Faulty RFW main switch

b) Faulty transfer case switch

c) Faulty control unit

d) Faulty lock solenoid

e) Faulty vacuum actuator

f) Vacuum leak at actuator or reservoir

g) Faulty 1-way check valve

I would start with the simple basics first, check for dislodged or leaking vacuum lines at the vacuum actuator.

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Sunday, June 17th, 2012 AT 10:33 AM
Tiny
RETROSK8
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Oh my god you guys are great! Do you have any schematics of the RFW though?

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Sunday, June 17th, 2012 AT 3:03 PM
Tiny
KHLOW2008
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Here you are.

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Sunday, June 17th, 2012 AT 5:01 PM
Tiny
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Thanks a lot!

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Sunday, June 17th, 2012 AT 10:41 PM
Tiny
KHLOW2008
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You're welcome.

Have a nice day.

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Monday, June 18th, 2012 AT 2:14 PM

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