XFR Case Shifts into 4lo

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XFR Case Shifts into 4lo

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Blazer Forum >> Mechanical & Maintenance >> Steering, Suspension & Drivetrain >> XFR Case Shifts into 4lo

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XFR Case Shifts into 4lo - 9/6/2007 8:53:23 PM

Oneness_bc

Posts: 1
Joined: 9/5/2007
Status: offline

I have a 2000 blazer and the 4lo light on the transfer case switch will intermitantly flash and shift into 4lo if I shift into neutral. I have checked and replaced a lot of the vacuum hose. Now I am looking as a switch located in the middle of the firewall (just under the hood) and the vacuum actuator. Any ideas or help would be appreciated before I tear in to this any further.

BTW - with the hose to the vaccum accuator removed from the switch on the firewall the 4 lo light doe sgo out after 30-45 seconds of running.

Thanks in advance,
Bill

Post #: 1

RE: XFR Case Shifts into 4lo - 9/7/2007 1:29:34 PM

aris_unlimited

Posts: 231
Joined: 3/30/2006
Status: offline

have you ran the trouble codes on it? Also I never see any harm in taking my cars to a dealer for a diagnostic only $40-50 and they can usually pin point down the problem.

_____________________________

Cars: 2000 Chevy Blazer 4.3L 4WD LT, 2004 Nissan 350z 6speed.

(in reply to Oneness_bc)

Post #: 2

RE: XFR Case Shifts into 4lo - 6/12/2008 7:29:00 PM

webdeath

Posts: 4
Joined: 10/9/2005
Status: offline

I have the same problem, and have no codes set. I have checked the switch wiring, vacuum hoses, and still no answer. Has anyone had a similar problem.

Please help!

(in reply to aris_unlimited)

Post #: 3