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  1. K

    Who's using RLI 75W-90 in their manual gearboxes?

    My gearbox isn't manual, but so far I like the RLI stuff.
  2. K

    Philips NightGuide

    I have a set (low beams) on my 1999 Suburban. They seem to work pretty well ... much better than OEM lighting.
  3. K

    Control won't move from front blower to defrost

    Here's the latest ... I tried to fix this myself, but to no avail. Mostly frustration (and thankfulness that my kids weren't around when I was trying). I took it to the dealer and found out that a wire harness had fallen down and was binding the HVAC linkage. So, problem now resolved. Thanks...
  4. K

    Replacing a/c & heater control on Suburban

    Now I'm ready to try the blend door actuator. The problem is that I can't get the right side of the dashboard all the way off to get to it. Any suggestions? Again, it's a 1999 Suburban.
  5. K

    Control won't move from front blower to defrost

    Thanks for pointing me toward the service manual!
  6. K

    Control won't move from front blower to defrost

    It is 4-wheel drive, so I'll check it. Not sure where the vacuum hose is you are describing Triple_Se7en.
  7. K

    Control won't move from front blower to defrost

    There were only three wiring harness connectors.
  8. K

    Control won't move from front blower to defrost

    dwendt44 - That might be a possibility if I were going to drive the Suburban this winter. However, my wife will be driving it no later than the end of the year. She won't want to deal with little tricks to do this and that. That's why I need to get this resolved ASAP! I'm sure everyone can...
  9. K

    Control won't move from front blower to defrost

    Let's assume you're right, MrCritical. What is my next step?
  10. K

    Control won't move from front blower to defrost

    In the recent past, it would make kind of a thunking sound when it switched between the front vents and the defroster. Now it only blows through the front vents.
  11. K

    Control won't move from front blower to defrost

    That's a great question. How can I check to let you know (because I don't know off the top of my head)?
  12. K

    Control won't move from front blower to defrost

    I replaced the a/c & heater control module on Saturday (in my 1999 Suburban) thinking that would solve my problem, but it did not. So I'm looking for some help. My problem? I can't get the knob to properly work ... to move the blower from the front vents to the defroster. It's October and...
  13. K

    Replacing a/c & heater control on Suburban

    Thanks for the help. I was able to get it off and install the new one. The only problem is that the reason I was replacing it in the first place was because it wouldn't switch to defrost. Guess what? It still doesn't. Apparently the problem is somewhere else and I have no idea where to look...
  14. K

    Replacing a/c & heater control on Suburban

    But from what you can tell, it's the same piece that you removed in order to replace your radio - right?
  15. K

    Replacing a/c & heater control on Suburban

    Thanks for the advice wapacz. I'll give it a try.
  16. K

    Replacing a/c & heater control on Suburban

    I have a 99 Suburban, so I bet they are almost identical. The front pod just pops out ... where's a good place to start?
  17. K

    Replacing a/c & heater control on Suburban

    I'm not real sure about how to get the dash apart in order to replace the a/c & heater control module. Any ideas/pointers are appreciated!
  18. K

    Strange sound when accelerating on highway

    Thanks for some practical advice, mechtech2!
  19. K

    Strange sound when accelerating on highway

    MrCritical - I did not hear the noise today. It was much cooler, so I didn't need the a/c. I'm beginning to wonder if it was a belt squeal. If that's the case, replacing the serpentine belt is pretty simple. I'm also wondering if I should replace the belt tensioner at the same time. Thoughts...
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