I have a '98 4Runner manual transmission. When I try to put it into 4 wheel drive the indicator light comes on about 1/10th of the time (meaning it only actually goes into 4wheel 1/10th of the time). The kid I bought if from says he thinks it is a problem with the suction or something? Are there other people with the same problem and if so is it easy to fix. About how much would it cost to have someone replace the suction piece? What other things could be causing this problem? Any help is appreciated.