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  1. 2

    A/C issues

    Alrighty so I replaced my motor back in December of last year, and afterwards my front A/C has not worked properly. It just seems to blow ambient air temperature. I checked the charge with my gauges and it is within normal ranges. The rear air blows ice cold. I checked under the hood at the...
  2. 2

    Diagnosing Cats

    OK so I replaced my cats almost two years ago when I did the lower intake gasket/MPFI job. Replaced all 4 O2s at the same time with new Ac Delcos. Well before my previous motor went out at 193K, I got a catalyst insufficiency bank two code. I played it off due to the bad bad misfire I was...
  3. 2

    Rear Drum Brakes

    Now that I've got the new motor purring in the Tahoe, I want to redo the rear brakes as they have likely never been touched in the 182K ive put on it. Figured I am going to replace shoes and drums, and all the hardware and wheel cylinders while I am in there. I know for the front discs, you...
  4. 2

    MPFI problems

    well my motor with 192k on it started misfiring 3 and 4. Read the plugs and it looked like Oil and coolant. Replaced the motor and cranked it up ran great for 15 seconds and then started misfiring, 3&4. Pulled injector and 3&4 were sputtering. I replaced the original spiders in January 2014 with...
  5. 2

    Reuse or buy new sensors

    Getting ready to drop a new motor in. Should I buy new sensors or reuse the ones from the old motor? The only ones I can think of are Crank sensor, knock sensor, coolant temp on the manifold, temp sensor on drivers side of block, and oil pressure (which I think is behind distributor?). Am I...
  6. 2

    Engine Replacement list

    Going to order a new L31HD for my Tahoe and trying to make sure I don't miss anything I'll need. I have already got: intake gaskets, intake bolts, new distributor gear, exhaust gaskets, water pump gaskets, plugs/wires. Other than fluids, is there anything I am missing or should do while I'm at...
  7. 2

    Replacement distributor gear?

    About to drop a new crate motor in my Tahoe, as my other started having severe misfires on 3 & 4. 3 was coolant fouled and 4 was caked with oil. Figured while I am there I would go ahead and replace the dizzy gear as I didn't do it when I did the intake gaskets two years ago. Anyone have the...
  8. 2

    Another fuel gauge topic

    I know we have all seen a thousand of them, but I have yet to see any definitive fix. I have a 2000 Z71 obs and mine has always humminbirded, but always read correctly(as possible) until the other day. I was sitting in traffic and my needle went from 3/4 to buried at E. It then popped back up...
  9. 2

    Help with coolant mystery

    I have about reach the breaking point trying to figure out where my coolant is going. I have replaced intake gaskets, water pump, upper/lower hoses, radiator, radiator cap, intake fitting, all heater hoses, and heater core. It's not going in my oil. No obvious external leaks. No coolant smell...
  10. 2

    LED issue

    So I replaced all the interior lights with LEDs. Two Overheads, four doors, and two foot lights. Admiring my work when the dome override kicked in and the lights went out, well almost. Faint glow. Pulled and LED and put in one incandescent and it goes away. Apparently there is a minor amount of...
  11. 2

    Door Hinge pin replacement = FAIL

    Well went to replace my door hinge pins on my driver and passenger doors. Ordered 4 Dorman 38416 kits, and two 38433 roller pins. After much research, and everyone saying its a 45 min job, watching several videos, etc. I go to tackle it today. Get the old ones off without a hitch, chisel out the...
  12. 2

    Front Axle End Seals

    Well, noticed a drip on my driveway today, got underneath and the drivers side front chunk seal is leaking on my 184k 2000 z71. Passenger side looks like it is probably seeping too. How big of a job is this? I see myself as an above average wrencher but have never fooled with differentials on my...
  13. 2

    Passing gear issue

    Having a little issue with my trans when I get on the throttle on the highway. If I go to the floor with it say passing or merging onto the interstate, my truck will downshift, and rev really high, and immediately shift back up. Mind you this does not feel like a slip, it is pulling its just...
  14. 2

    Uneven Tire Wear?

    Had a new set of tires put on about 2200 miles ago. When they were put on I had the shop's front end guy go through everything and make sure I didn't need to replace any suspension components. He said everything was tight and performed an alignment. My previous set of tires were obviously...
  15. 2

    Missing coolant.......I think

    Alright so I did the lower intake job about 6 weeks ago. Since that time, I have had to fill the reservoir up twice. Well, check it again today and it was low again. Changed the oil and didn't have any signs of coolant in it. Looked like oil. Poured the old oil into the empty jug ang measured at...
  16. 2

    Tire Wear and Ball Joint Replacement?

    I've got a 2000 z71 Tahoe and I noticed the outside of my tires (by outside I mean just the side facing away from the vehicle, not both) were wearing faster. I had ball joints put on it at about 60K ago(MOOG), then summer before last I adjusted the torsion bars up about a half inch and had it...
  17. 2

    Leak when it Rains

    About three years ago, I had Safelite replace my windshield after a rock cracked it. Well it took them about three times to get the damn thing to seal. Fast forward a year or so and I started noticing water dripping from under the blower motor area when it rains hard. I can cut the blower on and...
  18. 2

    Illumination bulbs?

    I am looking for the replacement bulbs for interior switches. Specifically the headlight switch backlight. Anyone have any idea what the part or bulb number is? I can't find one anywhere. Its the bulb with the little gray twistlock base. The really small one, not like the twistlocks in the...
  19. 2

    Bent Z71 Step Bar

    I slid off in a hole and bent the factory step bar on my 2000 Z71 OBS. It bent the brackets slightly, but also twisted the tube itself a little. Reckon there is any chance of me being able to straighten it and what should I do. Wish I could just buy another one but these things are rarer than...
  20. 2

    Lower Intake Bolts Question

    Just did the lower intake gasket job with the good fel-pros, and replaced the lower intake bolts when I was in there. I have a suspicion that I am getting coolant in the oil. However, I don't notice any coolant missing. I don't know if I am just being paranoid or what. After I did the job I...
  21. 2

    Speed Sensor Replacement

    Got a 2000 OBS Z71 with a bad front right speed sensor (or so the dealership tells me). How do you get to it? I removed the caliper and rotor, and there is a shield in the way the appears to be held on by two of the wheel bearing assembly bolts. Remove these? At 170,000 should I just replace the...

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