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  1. Vortec 4800 4.8L V8
    Have a 2003 gmc 1500. 4.8. It has 130000 miles on it. It was all stock ran perfect. Everthing worked. Newly rebuilt 4l60 with about 2000 miles on it. Anyway, I put a btr stage 3 cam kit, cold air kit, trailblazer stall, longtube headers wuth cat delete and it has been tuned. Now all my lights...
  2. Transmission-Transfer Case-Driveline
    I’ve ran into in my 06 5.3 Silverado that when I 3 options I turn my wheel slowly left or right or I go into reverse and turn or I’m at stop in drive it Starts to hum/vibration like if a metal was hitting another metal or grinding somewhere sometimes when I turn my wheel left in reverse too...
  3. 6-Speed Automatic Transmission
    I'm going to change the transmission fluid, filter, and gasket. While I have the pan dropped are there other maintenance items I should address? 2013 Silverado 1500, 2WD, 5.3L
  4. Transmission-Transfer Case-Driveline
    Hello all, hoping you can help me with a problem I’m having. I just put 4.56 gears in my truck. I didn’t change tire or wheels or anything. Now around 75-80mph my truck vibrates pretty bad on the rear end. Had the gear shop check everything and they said it all looked good. Now I’m thinking...
  5. 4-Speed Automatic Transmission
    I have a 2006 4.8 v8 Chevy Silverado. 4x4 The transmission started slipping out of nowhere. I was wondering if there was a way that I d be able to lean towards it being the trans or transfer case? I'm also unable to read codes and have a check engine light on. Is that the start of a bigger...
  6. 6-Speed Automatic Transmission
    Long story short, I’m looking for a decent, complete rebuild kit for a 6l80 off of a 2014 sierra 1500. I have seen the McLeod 88189K kit, but from what the pictures look like, it doesn’t come with all the clutches (they only have one picture) and I was wondering if anyone knew of a decent...
  7. Transmission-Transfer Case-Driveline
    I have a 2000 Silverado1500. 2wd. Noticed rear ujoint a was bad, went to autozone and got one. Had it put in and a day later was going down the road and all of a sudden it felt like I was on a road made of rumble strips. Had to keep driving it onto my house maybe half a mile down the road, it...
  8. Electrical
    I have a 2002 Silverado 1500. It all happened in about 30 minutes I started the truck fine but the transmission had no torque. I turned it off then turned on again and I had no prndl light or rpm’s and speedo. It works normaly if I hold the reset button. I parked and turned it off but when I...
  9. Electrical
    Took out valve body on my 2008 gmc sierra 2500hd to inspect the shift solenoids etc because truck starting slipping. Guy I bought it from said tranny was rebuilt a couple years back. Truck has about 250000 miles. Anyways after reinstalling and filling with fluid it wouldn't turn over. It will...
  10. 4-Speed Automatic Transmission
    Just bought my dad's 09 silverado with the 5.3 and 4-speed transmission. I've noticed since he bought it brand new that when cruising down the highway, if you let your foot off the gas to coast then gently continue back on the gas, the torque converter is unlocked and the revs rise for a few...
  11. 6-Speed Automatic Transmission
    Sorry in advance for long post! I have a 2014 Silverado LT 4X4 with the 5.3 engine. It has had a 7 inch lift and 35" tires since 4k miles. Currently has 117k miles. About a year ago it started occasionally "jerking" hard when decelerating quickly. This worried me but it didn't happen very often...
  12. 4-Speed Automatic Transmission
    2000 Silverado with 5.3L . Transmission seems to operate normally most of the time around town. However, the passing gear doesn`t seem to be quite right. If I`m on the interstate in OD and push down the pedal for it to downshift for a little more power it just continues in OD (almost bogs)...
  13. 4-Speed Automatic Transmission
    Have been chasing various throttle related issues/codes over the last few weeks, and with it the shifting has been erratic, but only when you put the pedal down. I cleaned and checked the throttle system top to bottom and put in a new throttle body & position sensor and had hoped the erratic...
  14. Transmission-Transfer Case-Driveline
    Hi. I have look through the threads and haven’t seen anything that helped me. First off I have a 2010 Sierra 1500 4.8L 4wd now here’s the issue and question…. I am having the hardest time trying to figure out what type of trans my truck has. A little over a yr ago my trans went out I lost...
  15. 4-Speed Automatic Transmission
    Hey all! My truck did not come with the buttons on the gear shift to control manual mode of the automatic transmission. I’m going out on a long shot and wondering if it can be added my updating the hardware and maybe some programming or if it physically isn’t possible due to my transmission. 😬...
  16. 4-Speed Automatic Transmission
    So recently I have noticed that my transmission is vibrating as I come to a stop. I don't think it is the brakes or suspension because everything is new, (pads, rotors, calipers, hubs, UCA's, ball joints, tie rods, cv axles). The big thing to note is that when I put the truck in neutral while...
  17. 4-Speed Automatic Transmission
    my 2006 silverado thinks its in park when i select neutral, and the gear indicator never illuminates N. When selecting gears, it will go from P, R(unlock doors), P(lock), D(unlock), 3, 2. and does the same going up. Every gear works and neutral works as it should mechanically. Also, 4 Lo will...
  18. 6-Speed Automatic Transmission
    Hey, recently purchased 2016 Silverado 1500 LT standard bed. 47k I’d like to describe a scenario that has caused a few panic attacks. Here are the existing conditions. After a short drive Parked on a 3 degree pitch Headed downhill Vehicle in park Foot off the brake Emergency brake off Vehicle...
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