toyota 4x4 1992

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  #1  
Old 06-08-02, 08:22 AM
mark caniparoli
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Question toyota 4x4 1992

My son's 1992 toyota 4x4 w/ v6 and manual transmission will not engage into 4 wheel drive. The light on the dash started blinking one day, then quit flahing all together and since then he has been unable to get the truck to lock into 4 wheel drive. The truck doesn't have locking hubs, so I ruled that out. Any suggestions??
I don't think that it is an electrcal problem. When you shift the transfer case into 4wd, the front drive line has power to it, but the axels don't. Could it be a vacum problem. There appears to be a vacum modulator with two vacum lines going to it taht is bolted to the front end housing.
 

Last edited by mark caniparoli; 06-08-02 at 06:12 PM.
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  #2  
Old 06-08-02, 03:35 PM
Joe_F
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If it's electrically operated, you might look for a stuck solenoid. This is a common problem on Fords where the brushes get glazed...it's especially problematic when the 4WD isn't used much.
 
  #3  
Old 06-09-02, 05:52 AM
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Location: Pittsburgh,Pa
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Check for vacuum at the front axle actuator,if you have it the actuator is most likely bad ,if you dont start tracing back the vacuum line till you find a leak or a bad vacuum switch.
 
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