QuestionSir, I purchased a 2001 Chevy Venture WB edition equipped with rear HVAC controls. Whenever the AC is on and the selecor switch for the blower for the rear AC is turned to any of the three (3) positions, I can feel the AC lines vibrate under the floorboard. I have crawled under the van to see these lines actually vibrate. I have taken the van to the dealer 3 times for this problem (A GM Dealer) where I purchased it. They have seen, heard, and felt the lines vibration and have tightened the lines, adjusted the clamps, and put "insulation" (I don't know what type they are referring to) between the clamps and the lines to try to help stop the vibration. The vibration is intermitent and random, but it seems to be happening more frequently and for longer periods of time. The service dept. says they don't know what else to do; they have told me that it happens because of the pressure in the lines...well it did'nt come from the factory that way I'm sure, so its an abnormal problem and should not be occurring. Incidentally, the AC works fine, blows out air fine and gets cold, it's just the vibration and its extremly irritating and loud. I would suspect the dealers mechanics know what they are doing seeing that they sell and service Chevy, Cadillac, Olds and Pontiac GM products as well as Volvo, Nissan, Mercedes-Benz, and Mazda vehicles and should be familiar with them; or so I thought! Please help!
AnswerYou stated: well it did'nt come from the factory that way
I'm sure.
Answer: Don't be so sure. You would be amazed of all the
problems that the factory puts out.
About the only thing you can do is:
1. Turn up the radio LOUDER. (just kidding).
2. Depending upon how easy it is to access, I have taken a long piece of heater hose that just fits over the line and split the hose length wise and wrapped it aoround the line. Then I took a larger diameter heater hose, Split it and wrapped it over the first hose.
It worked for me.
autohelp
