Question about 2001 Chevrolet Blazer

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4 Wheel drive not engaging.

2001 Chev Blazer. 4 Wheel drive is not engaging. Pushing the auto 4 wheel drive button and it continues to flash only. It's the same if I push the 4Hi button to. Tried to put into 4Lo and it will not go also. All lights continue to flash only. Any help would be appreciated.

Thanks

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  • pookie35 Jan 01, 2009

    I have the same problem with the vacuum line on the leftside that somone told me it had to be capped, so far I have replaced the 4x4 actuator under the battery tray and the 4x4 switch on the transfer case and did the test on the solenoid canister purge, where you take the 2 lines off and connect them together with a female/female connector to see if the solenoid switch is working and that didn't work ,I also took the battery out and hooked it up via jumper cables to see if the four wheel drive actuator was working and it is.The problem I have is the same as yours ,I can hear the transfer case engage but thefront wheels wont engage and the lights just flash.I have changed everything that I can think of can you or somone tell me what is left to check it's driving me crazy because I can't figure it out.PLEASE help me!!!!

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After finding a vacuum line that was off from the auto body shop that never was reconnected , after they removed it when they replaced the left side fender from a crash. Reconnected it and now it works. It was hard to find. Due to it is located below some other componets and wires.

Posted on Dec 29, 2008

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