4 Wheel drive won't engage - Toyota Tacoma Forum
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#1 (permalink) Old 12-04-2009, 12:08 PM
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4 Wheel drive won't engage

2006 Tacoma 4 door 4x4 Sport A/T - 17,900 miles

Tried to engage 4x4 today and nothing happen, the 4x4 light just blinks. It blinks even after switching it back into 2wd. The 4x4 never engages, the light just blinks. No noises, no grinding, no beeping, just a blinking light. Drives fine as well. Anyone know what a possible cause / solution might be? I'm waiting for my dealership to call me back so I can schedule maintenance.
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#2 (permalink) Old 12-04-2009, 12:29 PM
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Re: 4 Wheel drive won't engage

That usually means the system is failing to fully engage (or engage at all). My first guess would be a fault in the control equipment.

Have you been attempting to engage 4WD in accordance with the conditions outlined in section 1-7 of your owners manual?

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#3 (permalink) Old 12-04-2009, 01:02 PM
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Re: 4 Wheel drive won't engage

Yeah, I do it strictly by the book. Except it's been a couple months since I've had it in 4wheel drive and it recently dropped a lot in temperature (12" of snow last night), so it may not have the lubrication it needs. I have an appointment to get it looked at on Monday. Hopefully it's nothing serious.
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#4 (permalink) Old 12-05-2009, 08:15 PM
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Re: 4 Wheel drive won't engage

Update: It's working again. I let it warm up real good and the light stopped blinking. Switched it to 4x4 and it engaged just fine. I'm guessing since I hadn't run it in 4x4 for a couple months and with the freezing temps it just wasn't lubricated well enough to engage. Still taking it in for a lube change though.
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#5 (permalink) Old 12-05-2009, 11:45 PM
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Re: 4 Wheel drive won't engage

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Originally Posted by Mr. Pips View Post
Update: It's working again. I let it warm up real good and the light stopped blinking. Switched it to 4x4 and it engaged just fine. I'm guessing since I hadn't run it in 4x4 for a couple months and with the freezing temps it just wasn't lubricated well enough to engage. Still taking it in for a lube change though.
You are exactly correct. People don't realize that they should put their truck in 4x4 at least once a month to keep everything lubricated and functioning properly. Between the temp drop and lack of use, something was stuck. You hit the button enough times and got it warm enough to get it loose. Now, just use it a bit more often and you should be fine.

My truck is stockish.......for now.
Monomax's all around. More to come this spring.
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