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  1. K

    1999 Chevy Tahoe Engine swap California

    Calif CARB (California Air Resources Board) is a miserable, over-reaching bunch of tyrants. I would research this very carefully. Even if you pass the "sniffer" test on dyno, if some sharp-eyed smog tech notices you have substituted a non-OEM engine, then CARB is notified & you're possibly...
  2. K

    Remanufactured Jasper NP241 or let local shop rebuild?

    Thanks for all the advice. I decided to install a used transfer case, the total labor + parts is mid-$1100s , and the local shop provides a 90-day parts & labor warranty. The mileage isn't known, but w/ 90-day warranty it shouldn't be too bad. I will keep the old case (no core charge), just in...
  3. K

    Remanufactured Jasper NP241 or let local shop rebuild?

    1994 K1500 Blazer, 250K miles, led a very gentle life. No towing, no offroading, stock suspension. Last night, truck started making horrible, "grinding gear" noises when I slowly accelerate from a stop. A local mechanic has traced problem to the NP241 transfer case. No external cracks or leaks...
  4. K

    Double-flare Hell

    I've used a "pro" grade Ridgid brand double flare set & never had problems on ordinary steel brake tubing tubing. Stainless tubing, OTOH, is nearly impossible without hydraulic-assisted, very $$ tools. A special copper-nickel alloy -- a common trademark name is "Cunifer" -- has been used for...
  5. K

    how to identify transfer cases at risk for "pump rub" ?

    Well, I found a few cross references of transfer cases used on specific car models & drive trains ... and it seems to be ALL 4WD GMT800 vehicles are at risk :-( eg, http://www.fourwheeler.com/features/1406-transfer-case-spotters-guide/...
  6. K

    how to identify transfer cases at risk for "pump rub" ?

    I've been shopping for a MY 2004-06, K2500 Suburban, and have recently learned about the transfer case "pump rub" problem. Is there any particular case or cases that suffers from "pump rub" failures? This webpage...
  7. K

    K2500 rear axle identification

    I've been searching for a very low mileage 2004-2006 K2500 Suburban for months, without much luck. A photo of one seller's Suburban was missing the center lug nut covers on both rear wheels (but front wheel covers were present). On pic below, is this a stock rear axle? I've never looked at one...
  8. K

    Thinking of Buying a 00-06 NBS Tahoe/Suburban? Look Here

    As to why "Correction: Replace all the intake manifold bolts" about the only thing that makes sense to me, is if the female threads are through-holes (not blind) into the lifter valley, or into the head's rocker arm area. Then, - intake manifold vacuum, combined with - faulty or no sealant on...
  9. K

    Thinking of Buying a 00-06 NBS Tahoe/Suburban? Look Here

    well, did some interwebz searching and GM acknowledged a problem and had an early 2000s TSB on the 8.1L engine's excessive oil consumption. Couldnt find the original TSB but it is mostly reprinted here: http://www.gm-trucks.com/forums/topic/26737-oil-consumption/...
  10. K

    Thinking of Buying a 00-06 NBS Tahoe/Suburban? Look Here

    Where does the oil go? Into combustion chamber & prematurely foul the plugs? Sucked thru PCV valve and coat insides of throttle body & intake? Can't think of where else oil would go.
  11. K

    Thinking of Buying a 00-06 NBS Tahoe/Suburban? Look Here

    Do the 8.1L (L18) engines and 4L80E transmissions have any known risks or weaknesses — like the castech head cracks that affect some of the GMT800 small blocks? I'm considering a 2001 Suburban 4wd 2500 with 59K miles and the 8.1L drive train, but issues like Castech heads would be a nightmare...
  12. K

    Radio gadgets can steal a car

    It annoys me when auto "journalists" complain that such-and-such car is "dated" and "not modern" when it -- gasp! -- needs a key to start it. The 'journalists" breathlessly gush about every new gimmick, and can't be too harsh, else their magazine/website wouldnt get advertising dollars from the...
  13. K

    Getting Rid of 2016 Yukon Denali for 2009-2014 Tahoe LTZ

    What model year did GM implement "Direct Injection" (DI) fueling? That seems another risky, maintenance & repair nightmare. AFAIK very few have racked up enough miles to get a good database of DI reliability issues.
  14. K

    $700 for rear tail light replacement???

    LEDs are a stupid "solution" in search of a non-existent problem. Instead of a $2 incandescent bulb that needs replace every couple years, now it's a multi-hundred $ repair. I'd be trying to retrofit back to ordinary $2 lamps. http://www.eenewsanalog.com/news/big-lie-about-led-lighting The...
  15. K

    anyone find a larger oil filter?

    Many years ago I switched my vehicles to Baldwin brand filters. USA-made and much heavier duty construction than retail store filters. Also Baldwin has much better anti-drainback valve than most other brands (if filter uses a valve). Blow with your mouth, into the center filter hole, and...
  16. K

    Cracked Dash DIY Repair

    What's causing these cracks on relatively new vehicles? Sunlight? Would a dash cover have prevented this?
  17. K

    New Truck in Town vs GM Units

    I have an 87 Grand National & love it. Turbos & high boost are fine for 15-30 seconds at a time. But exhaust manifolds will literally glow red-hot under long duration, high load. I have no confidence that a tiny turbo gas engine can move a 6000+ lb SUV up a 10 mile grade in 90ºF heat, and...
  18. K

    AFM Delete with Range module

    What is "M5 method" ??
  19. K

    Exhaust Void Warranty?

    Cold air intake could cause extra hassles with dealer service dept, especially if you ever had a drivability issue. Simple solution: take off the cold air temporarily if you needed warranty service for this. In strict states like Calif, presence of cold air would automatically fail the visual...
  20. K

    10 speed transmission, worth waiting for?

    Seems to me it will require internal components that are smaller, lighter, and flimsier. Not good for durability & reliability. I prefer to keep my vehicles for a very long time. Whatever miniscule fuel savings I get will likely get wiped out by expensive repair bills down the road.
  21. K

    2015 GMC Yukon

    Good grief -- on what model year did the unfashionable $2 incandescent lamps (+10 minutes of my labor) start going out of style ?
  22. K

    how to make your AC blow harder and cooler.

    I cleaned the evaporator box on my '94 K1500 Blazer today & I couldn't believe how much leaves & crud had accumulated -- literally fistfuls! My box was probably dirtier because I've been driving around without the plastic grille on the exterior cowl area, but even with that on, a lot gets past...
  23. K

    Body Mount Bushings for '94 Blazer/Tahoe

    The original Body Mounts on my stock, '94 K1500 Blazer (250K miles) seem in ok shape, but since I'm slowly 'refreshing' the SUV, am thinking to also replace the mounts/bushings. Problem is, I'm having a heck of a time finding a ful set of OE-quality, rubber bushings. Do NOT want to use...

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