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  1. W

    Blower motor help

    Any suggestions on where I should look to get my blower motor working? It was working fine before the dash removal
  2. W

    Blower motor help

    This weekend I pulled the dash to swap my air defuser thing behind the dash. While I had it out I swapped the dash itself due to it being cracked and in bad shape. When I had the wiring harness out, I found a white wire and a purple wire that were both wrapped in what looked like duct tape...
  3. W

    Dash replacement

    I know this is an old thread but I have used it this weekend trying to replace my dash and replace the air defuser box under the dash. After getting everything done I wanted to test it out and now I have no blower motor or movement of the doors in the box I replaced. I have the plug behind the...
  4. W

    Rebuilt 454 engine (slightly modified) Rebuilt tranny - stalls out in gear at idle - help...

    Does it do it once it is warmed up or only when its cold? I'm fighting a very similar problem on my 99 454.
  5. W

    The Official Vortec 454 Info thread

    I believe he uses the SnapOn Solaris scan tool.
  6. W

    The Official Vortec 454 Info thread

    I have a couple questions regarding tunes on these. Tried to do a search and didn't see what I'm looking for. Looking at the order form from Black Bear Performance, it asks about how much T.M. I want removed. Ive read that these trucks run much better with that removed. So question is how much...
  7. W

    A/C Help

    I have tried jumping both the low pressure and high pressure switches with no luck. I have put a gauge on it and it is good on R134A.
  8. W

    A/C Help

    Noticed last week my A/C stopped blowing cold and the compressor is not coming on. Truck is a 99 GMC k3500 OBS. So far I have done the following. Checked pressure at the compressor and it checked fine. Checked the fuse, also checked fine. Tried jumping low pressure switch. Compressor does not...
  9. W

    The Official Vortec 454 Info thread

    I will have to double check some of those things. IAC was checked by my mechanic with the SnapOn Scan tool. I believe we checked with the IAC unplugged but don't remeber off the top of my head. Been battleing this for close to a year.
  10. W

    The Official Vortec 454 Info thread

    Checked vacuum leaks which lead us to the upper plenum gasket. Didn't matter. I dont recall what vacuum was but it was within spec. Haven't blocked off the EGR but we did replace it. IAC was replaced and readings are in proper range.
  11. W

    The Official Vortec 454 Info thread

    Wondering if I can get some help on this issue I've contiunally had since I bought this truck. When it gets warm, I will have a weird idle issue and occasionally die. So far we've replaced the IAC, EGR valve, upper plenum gaskets, plugs and wires. My mechanic thinks it may be ECM related. It's...
  12. W

    99 K3500 PCM

    Hadn't really thought about going custom tune. Truck is a bone stock 454 that is my daily driver/work/plow truck. Are there many gains to be had by going custom tune for a stock truck? Sent from my SM-G973U using Tapatalk
  13. W

    99 K3500 PCM

    Truck has the 454 in it. Sent from my SM-G973U using Tapatalk
  14. W

    99 K3500 PCM

    Due to an internal issue with my PCM in my truck, I need to replace it. Problem is, the paint is all gone and there is no sticker on top showing the part number. My mechanic pulled the number 09374044 with is SnapOn scanner but that brings up nothing when either him or I do searches for the...
  15. W

    Torque converter issues??

    Here are a couple videos showing what it will do. Sent from my SM-G973U using Tapatalk
  16. W

    Big 3 and Dual Battery Kits

    Anyone have any final install pics? Trying to get an idea on some of the cables routed, especially on the passenger side.
  17. W

    Torque converter issues??

    Trying to figure an issue with my 99K3500/454/4L80E. Ever since I have owned this truck after it warms up for a bit it will want to, and has died. Normally does it when in reverse but has done it in forward. I'll stop at a stop sign and the truck will idle fine then idle down to the point of...
  18. W

    Big 3 and Dual Battery Kits

    Could I get an updated price for a big 3 update and dual battery kit shipped to 52641 please?
  19. W

    Fog light valance questions

    Multiple questions here that I'm sure has been beaten to death over time. I'm wanting to put fog lights on my 99 that will looks factoryish. I don't want the diesel bumper route so it's looking like the valance style is the way to go. Does anyone make a valance with the openings for both the tow...
  20. W

    HVAC help

    So I got some more time to mess with this. The only way I can get the compressor to kick on is if I run a jumper between where the 86 and 30 pins go at the fuse/relay block under the hood. Bypassing the low pressure switch did nothing. I took a test light and checked both wires at the compressor...
  21. W

    HVAC help

    The fan works fine on all speeds. I will try to add some refrigerant to the system to see if it has leaked out and tripped the low pressure switch.
  22. W

    HVAC help

    Hoping for some HVAC help in my 99. First is the A/C. I turned it on to check if it worked. Was told by the previous owner that the switch didn't and the way got it to work was jumping it at the relay under the hood. I got a different HVAC control panel and put the relay back in and tried the AC...
  23. W

    Heater / blower only works on windows / 1997 K1500

    Not to high jack this thread buuuttttttt, I'm looking at the same issue on my 99 K3500. What is the difference between the 3 terminal and the 4 terminal? The parts store offers both.
  24. W

    Newb from Iowa

    You have the plow I want lol. What part of the state are you from?
  25. W

    Newb from Iowa

    Newbie joining the GMT 400 ranks. This is my 99K3500 I bought back in November. Has the 454 in it. Slowly starting to make it mine. Swapped out the regular bench for the 60 40 earlier this week. Would love to find a bumper like the on pictured. Plans include LEDs, some sort of fog/ driving...

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