I would like to say hi to all the members on blazer forum!!! long story short. my question is on my 1986 s10 2.8l blazer my four wheel drive was needed a new actuator three months ago and worked beautiful and just a about a week or so ago my four wheel drive stopped engaging in four hi and lo. i haven't bought a new actuator yet because it is not sucking vacuum very good visually... it is winter here in MI and its about any average 35 degrees or so. i was thinking the vacuum lines so i followed them up to the transfer case switch and i need a good way to reach the switch as i can't see it. any advice would be greatly appreciated as a new member here on blazerforum...

 

welcome to the forum, i would look up your problem on here there has been tons of other people talking about it

 

Welcome! As Butters said, do a search, this topic has been discussed many-a-times.