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Type: Posts; User: triple-4x4

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  1. Looks just like how I changed mine as well. ...

    Looks just like how I changed mine as well. Couldn't get it out until I bent it inward on itself to get it out.
  2. So I have been driving the truck for a while now...

    So I have been driving the truck for a while now with the NP241 transfer case.
    Vibration is better, but not 100% eliminated.

    Latest item was a torsion bar adjustment to front end ride height. I...
  3. I would just look for a 95-99my front driveshaft...

    I would just look for a 95-99my front driveshaft which has u-joints for front & rear of the shaft. The NP246 is a slip spline design, so they are not interchangeable.
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    My shift motor on Transfer Case was bad

    I have a 99 Suburban with the NP246 transfer case ( 4 button type with the auto setting ).
    Sounds familiar. My 2WD indicator light would be off. I would press 2wd while engine was running and it...
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    In the same area you described, I seem to...

    In the same area you described, I seem to remember that people have a problem with the transfer case oil pump wearing through the rear half of the transfer case housing. Check for cracks or a hole...
  6. 99MY 5.7L Vortec catalytic converters - expected life? Tell your story

    I have a 99 Suburban K1500 with 200k miles and I don't think the Catalytic converters have ever been changed. ( I have owned it for 90k miles )

    What kind of life can you get out of the factory...
  7. I checked the mechanical timing again

    After replacing the distributor and not finding any difference in the way the truck runs, I took it apart to double check the timing. Everything lines up - at #1 TDC ( I tested by taking out the...
  8. 99 5.7 Vortec - what is fuel pressure spec after MFI upgrade

    I changed the fuel injector assembly from the stock CSFI to MFI about 30k miles ago. Now when I check fuel pressure, I read 55 lbs. Does anyone know what the correct spec for fuel pressure should...
  9. Replies
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    I just took a trip about 600 mi each way with my...

    I just took a trip about 600 mi each way with my 99 Suburban K1500, and had tough time on the interstate going up hills. We were pulling our pop-up camper, but it did it once without towing...
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    I also have a 99 Suburban K1500. Mine had a...

    I also have a 99 Suburban K1500. Mine had a NP246 Transfer case until I just changed it over to a NP241 manual shift because I really do not like the complication of the electric shift system. When...
  11. Replies
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    I had a NP246 transfer case on a 99 suburban...

    I had a NP246 transfer case on a 99 suburban which was stuck in 4wd lo. Before I could put the new shift motor in place, I had to put a wrench on the transfer case shifter shaft and move it to the...
  12. I did replace quite a few parts, but I would...

    I did replace quite a few parts, but I would change one set of parts and then it would be several months before the next group.

    This last activity was the following:
    Transfer Case
    Transfer Case...
  13. Solved problem at 65mph vibration for 99 suburban

    Well this past week I was able to fix the Vibration issue at the 65mph~70mph area. :money:
    I have a 99 Suburban LT K1500 4x4 with 197k miles. It has the 4 button 4wd ( Auto Mode ) with the NP246...
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    Assuming that your new fuel pump is a good one, I...

    Assuming that your new fuel pump is a good one, I can think of 2 possible problems. Maybe you have a bad fuel pressure regulator and it leaks pressure back to the return line or one of the fuel...
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    I also recommend the Bilstien shocks. Tried a...

    I also recommend the Bilstien shocks. Tried a different brand in my 99 K1500 suburban, and they were junk. The upper mount is critical to have a solid tube as part of the shock. Don't go for any...
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    Your buttons not lighting up sounds just like a...

    Your buttons not lighting up sounds just like a problem I had.
    Mine was the actuator. When the computer can not tell where the transfer case is set, I think it just turns off the lights. My...
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    Fluild Type for Transfer Case

    The Auto 4wd usually indicates an NP246 transfer case, just check the red round tag on the rear of the case. If it is a NP246, it takes the GM Auto-Track II Transfer case fluid. It should be GM #...
  18. 99 Suburban LT 4wd 195k also has 65mph vibration

    I have a 99 Suburban K1500 4x4 LT with 195,000 miles on it. It has the NP246 Transfer Case ( 4 electronic buttons on the dash )

    I also have the vibration at about 65 or 70 mph on the interstate. ...
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