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  1. DPC

    mysterious coolant system issue

    So I went and drove the truck this morning and it has a radiator leak. Have no clue why it didn’t show up when I pressure tested it overnight... Sent from my iPhone using Tapatalk
    • DPC
    • Post #10
    • Forum: LML
  2. DPC

    mysterious coolant system issue

    Finally got the truck back, put pressure on the system overnight and no leaks, held 21psi. So now I’m thinking it’s going to need head gaskets...again. Then I noticed the new cap was a MotoRad not GM. Put a new GM cap on and all is good! Coolant siphoned over like it should overnight...
    • DPC
    • Post #9
    • Forum: LML
  3. DPC

    mysterious coolant system issue

    Would the system build enough pressure to make the radiator hose rock hard? The reason I ask is that I went out and flogged this truck to try and get it to build pressure and nothing. After he brings the truck back and if the coolant system checks out I'll pull the heads and have them...
    • DPC
    • Post #7
    • Forum: LML
  4. DPC

    mysterious coolant system issue

    Thought about that also, but I want to eliminate everything else before I recommend head gaskets...
    • DPC
    • Post #5
    • Forum: LML
  5. DPC

    mysterious coolant system issue

    Thanks for the info, I am going to clamp the lower surge tank hose and put a vacuum through the upper hose using my mityvac (with the cap on) and see if I can get to pull over.
    • DPC
    • Post #3
    • Forum: LML
  6. DPC

    mysterious coolant system issue

    Truck is a 2012 LML with an H&S tuner, head studs, and a full delete kit. Has a new surge tank and cap. Water pump and thermostats changed when studs were done. The truck will get up to operating temp and some of the coolant will flow into the fender side of the surge tank. After the...
    • DPC
    • Thread
    • Replies: 12
    • Forum: LML
  7. DPC

    LML: Down pipe back exhaust?

    Interesting, just did a search on XDP using "P1" in the search and everything showed up. When I search by vehicle (like I always do) only filter back shows up... Thanks.
  8. DPC

    LML: Down pipe back exhaust?

    Down pipe back exhaust no longer available? I've noticed very recently many "big" diesel part sites no longer carry full exhaust systems. Basically 07.5 and newer are filter back only. I also checked Ram and Ford, same deal. I guess its back to ebay for diesel parts???
  9. DPC

    EFILive 06 cummins 25553 os wont convert to csp5

    Is your V2 plugged into your computer? If not it won't convert.
  10. DPC

    ABS module problem??

    sensors Update...Put two new GM wheel speed sensors in the front hubs and problem solved.
  11. DPC

    ABS module problem??

    I'll see what I can find out, thanks.
  12. DPC

    ABS module problem??

    Cleaned the hubs and no change. Unplug the ABS module and everything works like it should. We also noticed that the truck rolls or moves easier with the ABS unplugged, like the bakes were very slightly applied.
  13. DPC

    ABS module problem??

    Thanks, I'll give that a try.
  14. DPC

    ABS module problem??

    Hubs are good, no play or binding and spin freely.
  15. DPC

    ABS module problem??

    06 LBZ has an odd braking issue. When the brakes are applied truck stops fine until just before you come to a stop. The steering wheel will see-saw back and forth like the front brakes are alternating back and forth. System has been bled 3 times, truck has braided steel lines. Automated...
  16. DPC

    Something Interesting

    L5p os I noticed the current OS in my 18 L5P already has some 10 speed parameters.
  17. DPC

    Something Interesting

    Joint venture?
  18. DPC

    Something Interesting

    Kind of reminds me of a 6R140 with the case and bell housing as one piece.
  19. DPC

    L5P dyno test

    I put the Banks on my 18 GMC today also running 35s, really woke up the low throttle response.
  20. DPC

    Colorado 6L50 line psi

    I did find the zip kits, checking with sonnax to make sure they fit. Will a 6L80 converter fit in this particular 6L50? I talked to a few shops who do converters for 6L80s and they were not sure if they would fit. Initially the answer was "yes", until I told them what the transmission was in...
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