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  1. bowtie2

    Tahoe 2003 mysterious stalls

    Just to let know that 2 years and 6 month later...the problem occurred again! Symptoms where little different: couple months ago it stalled suddenly when stopping at a stop light, juste a few times, and one day, 3 weeks ago it stalled after 1/2 mile when idling or engine running under 1000rpm on...
  2. bowtie2

    4L60E slow speed changes after rebuilt, same as before.

    On my 2003 Tahoe, 5.3 4X4, I am having difficult to cure shifting problems. The 4L60E trans has recently been completely rebuilt, due to slow 2/3 and 3/4 speed changes. The solenoids have been replaced to. The situation is exactely the same as before the rebuilt. I must tell that, I cannot find...
  3. bowtie2

    Another transmission question...

    On my 2003 Tahoe with 120k miles on it with part time hauling (horse trailer)from previous owner, I am facing 2/3rd and 3/4th slugish upshifts. Before going to a complete overhaul of the 4L60E (which is difficult to remove from an AWD like tis one), I will appreciate some infos or ideas. Few...
  4. bowtie2

    2003 Tahoe 3D to 4D lazy

    Since I own 6 months ago, this 2003 Tahoe, 11000k, original trans, the car shifting from 3D to 4D is slow at low speed and specially when I leave the car rolling smoothly on the gaz pedal. When I ask more power the 3D to 4D shifting is normal. No strange noise, bad oil level in the trans. Could...
  5. bowtie2

    Tahoe 2003 mysterious stalls

    yes Schloe! The mechanic told me that usualy these CKP sensor failure drives to a no start when cold or warm. Not very often to my stall after 5 mn. He also told me it's not that often that these CKP sensor fail on these 223ci engines.
  6. bowtie2

    '03 Yukon 5.3l Random, intermittent loss of power and stall

    Yes! OK! the problem was that Crankshaft Position Sensor, so I went to the garage, they changed it and erased the PO336 code, then that was it! For info, the mechanic told me that this Crankshaft position sensor failure usualy provoques impossible starts when engine is hot, but not there, it's...
  7. bowtie2

    Tahoe 2003 mysterious stalls

    OK! the problem was that Crankshaft Position Sensor, so I went to the garage, they changed it and retrieve the PO336 code, then that was it! For info, the mechanic told me that this Crankshaft position sensor failure usualy provoques impossible starts when engine is hot, but not there, it's the...
  8. bowtie2

    Tahoe 2003 mysterious stalls

    No, I dont have that live sensor data device, just a code reader /eraser. The vehicule is to go to the garage next friday, I 'll let you know what it is. I'd like to do again that no start test you suggest, but I lack time this week . I am pretty sure I don't have sparks, because I have gas...
  9. bowtie2

    Tahoe 2003 mysterious stalls

    OK, no luck, I was pretty sure these 2 last parts change didn't help. Vehicule stalled again after a 10 mn drive...
  10. bowtie2

    '03 Yukon 5.3l Random, intermittent loss of power and stall

    Thank you Vinniety for the update. it's a good way too to solve your problem! There are so many sensors on these vehicules though... IMPORTANT: About the crankshaft position sensor, did your mechanic had to do a relearn procedure after changing the sensor? I opened another post on that...
  11. bowtie2

    Tahoe 2003 mysterious stalls

    Today I worked on the Tahoe and decided first to put new spark plug wires, they were original and 115000 miles old. I put good new AC Delco quality ones. Doing that on the right cylinder bank, I remarked a little water coolant coming out one of the 2 heater hoses. The clamp was loose, for how...
  12. bowtie2

    crankshaft position sensor

    On my 2003 Tahoe, the check engine light shows on now a P0336 code, which is Crankshaft Position sensor failure. Truck keeps on stalling everytime I use it for weeks now, and it's getting worse and worse Before attempting changing it I saw that this CPS needs the PCM to relearn the new sensor...
  13. bowtie2

    Tahoe 2003 mysterious stalls

    Hello Andrewg29, my pump is new, you were lucky fixing it this way!
  14. bowtie2

    Tahoe 2003 mysterious stalls

    Ok, the default code shows P0336, Crankshaft position sensor, which is very logical. I will change it as soon as I get it through my mailbox (I live in France). I checked that these sensor have to be re initialised, so let's hope it won't be necessary. I also know that the starter removal is...
  15. bowtie2

    Tahoe 2003 mysterious stalls

    Thanks for your infos. As I am writting this answer, the vehicule is cooling down in a street nearby! I tried today a TPS module change with the Dorman replacement device. Easy change, but I didn't want to use their new plug with all white wires. The truck did start very well and idles perfect...
  16. bowtie2

    Tahoe 2003 mysterious stalls

    Hello, My 2003 Tahoe, 5.3L stalls everytime after 30 mn drive from a cold engine, living me on side of the road suddenly, I then need to wait 30 other minutes to let it cool down, and it starts back straight for a couple more minutes. Anoying and dangerous. When the engine runs, it spurrs like...
  17. bowtie2

    '03 Yukon 5.3l Random, intermittent loss of power and stall

    Hello, Have the same issue on my 2003 Tahoe, stalls everytime after 30 mn drive then need to wait at least 30 other minutes to ccol down, and starts fine. Did: Put new Delphi sending unit and filter, cleaned throttle body, Map and Mas sensors, new battery, cleaned all ground cable bolts on the...
  18. bowtie2

    New with 2003 Tahoe

    Hi, I live in France and have a 2003 Tahoe. rather a good mechanic myself on antique cars, this new 21st century Tahoe is a mystery for me, so I will look for some help solving issues on mine, because there are no many trained mechanics here on these Us rigs!

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