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Search results

  1. Big T

    Problem: Heavy shudder upon braking

    Right rear heavily blue. Left rear reddish, on its way to blue. Not taking any chances, new drums and shoes ordered. Happy Birthday Big T!
  2. Big T

    Problem: Heavy shudder upon braking

    I did, but you can drive through with these engines.
  3. Big T

    Problem: Heavy shudder upon braking

    Well NAPA reinstated their 20% online discount, which brought the total down from $373 to $299. So there’s that. Parts will be here Tuesday.
  4. Big T

    Problem: Heavy shudder upon braking

    Nope, this is real. My hands are beat up and the next two weeks are long hours on the day job. Replacing drums is easy. Replacing brake shoes takes some time. I’ll try to get it done in the evenings.
  5. Big T

    Problem: Heavy shudder upon braking

    The truck was running incredibly smooth with no shudder while braking. It was my birthday and after splitting a bunch of wood, I decided to float and fish the river. I launched at Bell’s Crossing with my takeout at Stevensville Crossing. My wife shuttled the Suburban to the takeout at...
  6. Big T

    What did you do with your GMT400 today...or yesterday....

    Installed new 195 thermostats for which the specs said they start to open at 190. Per my dash temp, it gets to 187.5 then quickly drops back to 185. The Service Engine Soon light went off by itself. So I conclude that the Engine Coolant issue is back to normal. During my test drive, the braking...
  7. Big T

    New Bosch India 6.5 turbo injectors

    Well done. Thanks Paul. I looked around the garage, but could not find the 16th injector. I’ll keep looking. I’m just relieved I got the shudder upon braking corrected. Next up is replacing thermostats. Then my ABS should arrive by Monday and I’ll have Wayne at Eagle Watch Automotive install...
  8. Big T

    Problem: Heavy shudder upon braking

    It was never an issue of the drums being out of round out of the box. My error on the brake shoe install on the right side lead to the left side locking up and the right side only having the rear shoe applying brake force. This resulted in overheating the drums causing “warping” which is really...
  9. Big T

    Problem: Heavy shudder upon braking

    I bought a second drum to replace the right rear and the shudder upon braking is completely gone. In fact the braking is now buttery smooth.
  10. Big T

    New Bosch India 6.5 turbo injectors

    I purchased two sets of these injectors and I’m having them tested as we speak. First off, one injector is missing. These have sat on the shelf in the box they arrived in, individual injectors in their boxes most unopened and inside the injectors were sealed in heavy plastic bags. Why one...
  11. Big T

    Problem: Heavy shudder upon braking

    I’m having two sets of Bosch India injectors tested by Bill Heath. He will pull apart at least one to inspect for CKO indicators. As for the brake drums, I will know fairly quickly if the new one cured the issue. I have an incremental plan of attack for this issue and I’m working to it.
  12. Big T

    Problem: Heavy shudder upon braking

    I sense that you are fixated on this. To me it is not hard to pull a drum. I kept the first drum. Since it presumably warped due to overheat, I was not sure about turning it. With rotors, I never turn them because the “warped” area is from an increase in hardness of the metal due to heat. You...
  13. Big T

    Problem: Heavy shudder upon braking

    I will first try the new drum as is. If it does not cure the problem, then I will order a second drum for the other side. If that does not cure the problem, I will have them turned. Realize that my installation error caused the overheat problem and resultant warping. It was never there from...
  14. Big T

    Problem: Heavy shudder upon braking

    The local Napa charges $20 to turn this size drum.
  15. Big T

    Problem: Heavy shudder upon braking

    Everything is Chinese these days. I did not have problems when they were originally installed, other than the left rear locking up which was due to my install error on the right rear. If this drum is out of round, I will take it back to Napa. I bought from Napa for this reason as they have a 12...
  16. Big T

    Problem: Heavy shudder upon braking

    The vibration did not exist when the drums were initially installed. Belief is that the one locking up caused it to overheat and warp. The vibration started recently, like just before the tie rod broke which had me focused on the front.
  17. Big T

    Problem: Heavy shudder upon braking

    They are about 3 years old and about 15K miles. No they did not get checked before installing. Do I have Napa do that?
  18. Big T

    Problem: Heavy shudder upon braking

    By pulling the parking brake handle and braking moderately, he was able to isolate the braking to just the rear wheels. So when we felt the wop, wop, wop, we knew it was in the rear. It was the left rear that was locking up because I installed the brake shoes incorrectly on the right side with...
  19. Big T

    Problem: Heavy shudder upon braking

    By pulling the parking brake handle and braking moderately, he was able to isolate the braking to just the rear wheels. So when we felt the wop, wop, wop, we knew it was in the rear. It was the left rear that was locking up because I installed the brake shoes incorrectly on the right side with...
  20. Big T

    Problem: Heavy shudder upon braking

    Unplugging the ABS did not change a thing other than my ABS and Service 4wd lights turned off. I continued my drive over to Wayne at Eagle Watch Automotive and we went for a test drive. I showed him the shudder on heavy braking. He asked me to brake more moderately. Then he asked me to do the...
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