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  1. 29tomt

    Blue Devil Rear Main Seal Stop Leak

    I had previously posted that I had a leaking rear main seal on my 2003 Tahoe 5.3 with 223K miles. It had started out a small drip drip but began to show up on the dip stick. Vehicle has never budged off of full on the stick. Having last year had the oil pan gasket replaced along with the oil...
  2. 29tomt

    2003 Yukon Power Seat Controls

    My 2003 driver seat switch that moves the seat front to back and reverse does same thing. I just assumed PO put in the wrong switch to fix a broken switch. I decided to just leave it that way since it works.
  3. 29tomt

    Leaking Rear Main Seal?

    My 2003 Tahoe with 5.3 and 225K on the clock started leaking. the oil pressure sending unit and oil pan gasket had been replaced not too long ago. Anyway, I took a shot and added a container of Blue Devil 00284 Rear Main Sealer and after several days, the leak stopped. Have seen no fallout...
  4. 29tomt

    2001 Tahoe Radio Volume Not Adjusting

    I am referring to my 2003 Tahoe and probably the 2000-2006 range of Tahoes.
  5. 29tomt

    2001 Tahoe Radio Volume Not Adjusting

    Are you getting a chime when you do not put on seat belts, leave key in ignition getting out, lights on, etc? If not, you most likely have same problem that I have and others have had for which I have not seen a specific fix. Mine started out with what you are experiencing and all of a sudden...
  6. 29tomt

    03 GMC Yukon P0300 misfire 5.3

    My 2003 Tahoe played every trick in the book including rough idle, no crank, crank then shut off immediately, etc until I replaced the MAS after having cleaned it and the throttle body. Engine has run as new every since and has 224K on it now.
  7. 29tomt

    Odd Bose radio issues. No sound when cold. Randomly powers off for a few seconds. Occasional theftlock briefly then works fine.

    I have a 2003 Tahoe same issue that started 3 or 4 years ago. Each year the temp in the cabin needs to get hotter before the radio and chimes work. This year with the heat wave, it took 100 in the cabin for it to all work. I too tried installing a different amp and checked all the connectors...
  8. 29tomt

    Help needed. 03 Tahoe

    Had same on my 03 Tahoe. Was the MAS. Mine started weeks earlier with a slight miss at idle. Then, as you say, crank, shut off, crank, nothing then it finally starrted up. Drove it to my mechanic who has an analyzer and traced problem to MAS (which had been prev cleaned). Anyway, new MAS...
  9. 29tomt

    '05 Tahoe 5.3 / P0171 / Rough Idle / Misses

    When I bought my 2003 Tahoe in 2015 and for a while afterwards , it had a little roughness in idle. One day it crak and shutoff immediately and then it finally did crank and I booked it to the shop I use. Prior to that I had cleaned the mass airflow sensor and the throttle valve butterfly and...
  10. 29tomt

    Sound System silent when cold

    Did anyone ever solve this?
  11. 29tomt

    Sound System silent when cold

    Did you find the problem? Tkx
  12. 29tomt

    2003 Tahoe with Bose Amp etc

    I have posted before that the speaker and chimes only work at a certain temp in the cabin. Has moved up past 90 now to work after steady progression over several years. Dont care about radio as much as the chimes. use the cellphone for radio when I want it. I already tried replacing the amp...
  13. 29tomt

    Can’t Fill Gas Tank

    Same problem on my 2003 Tahoe. My repair shop replaced entire evap system including wiring harness using GM parts and problem solved. It has been several years now. Seems I was getting a code also.
  14. 29tomt

    Seat belt retractor grabs

    I got a NOS replacement for $80 from a recycler on Ebay and replaced it. The bugger was getting the bolts out that were installed with blue tread locker.
  15. 29tomt

    Automatic Temperature Control

    2003 Tahoe. When I try to dial the desired termperature on a cold morning, the display will go to the high 60s and stop. As the car warm up, it begins to increase incrementally but differently left side and right side. For years I would just dial both sides to 90 and when it got hot enough...
  16. 29tomt

    Factory Bose Entertainment System: Radio Lights Up. No Sound

    Since I replaced the amp with same results, I am guessing something going on in the radio head in the dash or one of many wiring connections. I am selling truck to my son and let him deal with it. I am too old to be messing with it any more.
  17. 29tomt

    Factory Bose Entertainment System: Radio Lights Up. No Sound

    I have the same problem with a 2003 Tahoe with Bose. It has to do with temperature for some reason. I got another amp and plugged it in under console and got same results. I could care less about the radio as I play radio on my Iphone.. the issue would be that the chimes quit so if you leave...
  18. 29tomt

    Sound System silent when cold

    2003 Tahoe. Same problem. Replaced amp. Did not fix the problem. Fuses ok.
  19. 29tomt

    2003 Yukon radio

    Mine does same thing. I had read that it had to do with a failing Bose amp or something cold sensitive. I replaced the amp with a used amp and got the same results. After a while, the speakers and chimes etc start working. Not sure where I am going with this next.
  20. 29tomt

    03 Tahoe - 4l60e "lurches" on 1-2 shift

    My 2003 Tahoe, which I purchased in 2014, has been doing that since I bought it with 128K miles on the odo and today it has 221K. It has been serviced with fluid and filter changes at least 3 times and it has had the Corvette servo installed as others have mentioned. It still does it but is...
  21. 29tomt

    Hi I am new to this form I have a 2001 Chevy Tahoe with a 5.3 would like to be able to increase the fuel mileage

    https://www.fueleconomy.gov/feg/noframes/22636.shtml
  22. 29tomt

    2006 Tahoe Z71 mileage

    https://www.fueleconomy.gov/feg/noframes/22636.shtml Looks like you are slightly below the average when tested new. Other than proper tire inflation and alignment, maybe having it put on a diagnostic computer to see how the engine is performing and some possible tweaks there.
  23. 29tomt

    What about vehicles built and sitting incomplete??

    My understanding is that there are a raft of 2021 and I guess now 2022 vehicles of all kinds built in various stages awaiting chips and completion. What happens to the market when these are completed and leave those storage yards? My understanding this could drag out into 2023.....
  24. 29tomt

    Please help!!

    Are you seeing signs externally that it is overheating like steam or whatever? As another posted indicated, maybe a temp sensor?
  25. 29tomt

    My “new” 05 - updates, upgrades and service plans

    Like MO Vietvet said, evap system will give you fits. I had my mechanic replace the entire system after screwing around with it and that includes the GM wiring harness that goes with it. Problem solved.

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