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  1. M

    Hot Shot Secret vs Optilube

    Back about 12 years ago when the optilube vs most other additives were tested against each other. Power Service came in worse for wear than the plain low sulphur diesel we had at the time.
  2. M

    Looking for a mini-split for my garage

    And they had the service manual as a pdf.
  3. M

    House HVAC issue while on generator power.

    And your kw's will go down on ng vs propane.
  4. M

    Remote Start No longer working/Start Issues

    I believe the ecm, bcm, and a few other things need to wake up before a remote start is iniated. The code for that is the two presses of the lock button, the holding the start button. This wakes up the ecm, bcm, and other modules. The ecm ask the other modules if it's ok to start. If the other...
  5. M

    Leaking coolant

    Did they check for cracks? Or head warpage?
  6. M

    House HVAC issue while on generator power.

    It is getting 220 volts and not just one leg right. And make sure when everything is running that you hz don't drop to much.
  7. M

    2013 dirty max dually transmission

    Well if the module was fried before you cleaned the connector, my bet is it's still fried. The u codes are communication codes. Those have to get fixed first. The ecm is looking to see certain parameters from all the other modules before it will proceed with a start. U codes means means that the...
  8. M

    2013 duramax 3500

    You have a communications failure. Either wiring, grounds, or a bad module.
  9. M

    Need help getting 4LO with ZF6 ECM tune

    My encoder went out on my Yukon transfer case. It shifted into 4 lo, then wouldn't shift out.
  10. M

    Eek! What is this in my oil?

    My 85 6.2 suburban had a little transmission problem going on, so I decided to change fluid and filter. It had about 1/2 inch of sand in the pan and filter was clogged. Come to find out the dipstick tube was not seated in the transmission. And with living near a beach the sand just kept blowing...
  11. M

    P0218 low fluid?

    The ecm and a few other modules are typically still awake for a time after you turn the key off. They each go to sleep at predetermined settings.
  12. M

    Having an issue after swapping in used engine.

    Are you sure the pump is hooked up and turning?
  13. M

    New here

    Nothing you can do. Except write a letter a week to gm.
  14. M

    LMM code U0073?

    Did you put a return on the bcm plug?
  15. M

    p0400 EGR code

    The seafoam is dislodging all the gunk in your fuel tank and sending it to your filter. Same as if you never run b20 then filled up with some.
  16. M

    67 c10 duramax build

    Some one said to use a certain hair spray on the boots. It gets kinda dry sticky and helps hold them on.
  17. M

    Exergy Fuel Treatment

    It has the same look and color as optilube.
  18. M

    DEF tank heater bypass ????

    Go to a parts house with an ohm meter and check a few.
  19. M

    2019 D-Max Loud Ticking

    There are a few that have.
  20. M

    Charging Tilt trailer battery while driving (Parallel quick connect?)

    The yellow top optima batteries were the best of both worlds for a while. I still have one in a generator that's 21 years old.
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