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  1. tom3

    Need measurement, ATF, cold

    Sure appreciate it if someone would give me a measurement from the bottom of the stick to the fluid line on your 6L80 trans. dipstick when sitting level, cold, and engine off. I know this is not how it's supposed to be checked but: Did a filter and fluid change on the 6l80 (2019) transmission...
  2. tom3

    Oil pressure sensor connector release?

    Need to change the oil pressure sensor on son's 04 with the 5.3. Can't see much back there, work mostly by feel. How does the terminal plug release so I can pull the wires off the sensor? Push tab? Or some other aggravation?
  3. tom3

    Rear suspension noise, any suggestion appreciated

    I've heard of the Tahoe Squeak so maybe someone has found this problem? Left rear side, standard suspension package on our 2019 Tahoe. I spent a couple hours under there looking, cleaning, lubing anything moves, didn't change it a bit. Is there one common thing back there that causes this...
  4. tom3

    Starting to feel vibration in 4cyl mode

    About to hit 30K miles on the 2019 with 5.3 standard motor. Has been totally smooth in 8 and 4 cylinder mode at cruising speeds up to now. Wouldn't know it even had the AFM deal. Just starting to feel some engine vibration in 4 cyl mode on the highway at easy cruise. Hasn't used a drop of oil...
  5. tom3

    2019 Tahoe transmission service at 28k miles

    I've been seeing all the problems with the 6l80 transmissions lately, son's GMC took a dump at 100k miles, scared me some. Decided to do a mid cycle service on our Tahoe to see what it looks like. Pretty surprised (nice) to see the inside of the pan. Also changed the thermo valve while I was...
  6. tom3

    Road trip MPG, 2019 Tahoe

    Took a 500 mile road trip today, Sunday. Light to medium traffic, two people with luggage, no drag racing, no big hurry, mostly at a couple above the speed limit. 2019 Tahoe, 5.3, 3:08 gear, mid grade gas. I'm pretty satisfied with this:
  7. tom3

    2016 transmission replace/rebuild, reprogram?

    Son's Sierra has the 6 speed transmission, 5.3 engine, just hit 100k miles. Transmission started a minor jerking at easy cruise, light acceleration, then let go completely. Fluid brown and smelled. But the question - Looks like a reman. unit has to have the TCM reprogrammed? If we take the...
  8. tom3

    Delco battery date coding?

    I can decode most replacement brand batteries but this Delco has me stumped. Anybody know how these numbers work on a Delco?
  9. tom3

    Suggestions for code scanner tech tool?

    Looking for a basic code scanner for the newer GM vehicles. I have the 2019 Tahoe, son has a 2017 with the same drive train. Not looking for bi-directional operation or to reprogram anything, just pull codes, reset SES, see live monitoring inputs. I see several that look good, priced right, but...
  10. tom3

    Oops, turned key on with MAF unplugged, service engine light on

    Changing battery and air filter today. Hooked up 12 standby power while battery was unhooked but after I put the new air filter in I turned on the key to get mileage with the MAF unhooked. Now I see the service engine light on, also see the oil pressure was reading high on the first drive...
  11. tom3

    Time for new battery, need info, 2019 Tahoe

    For our 2019 Tahoe. OE battery is a 94RPG or H7 size flooded acid standard type battery. Looking at new batteries I see that for a few more dollars I can get the same physical sized AGM H7 with a better amp rating and better warranty (4 year free replacement). But I'm not really up to date on...
  12. tom3

    Changing flat tire, lug nut removal?

    Looked down at a rear tire and see a drywall screw in it. Head to Discount Tire and got it fixed. Got me to thinking. How do I get those lug nuts off if I'm on the side of the road? At 140 ftlbs I can't imagine having anything in the factory equipment to get those off. Anyone ever have to...
  13. tom3

    PM on exhaust manifold bolts?

    I'm wondering if it would be a good idea to remove the exhaust manifold bolts and put a dose of Never Seize on them? 4 year old Tahoe @ 30k miles. How common is it for those bolts to break off - even at this point? Might be asking for trouble to do this?
  14. tom3

    Fuel filter replacement?

    Coming up on 30k miles on our 2019 Tahoe and wondering about replacing the fuel filter. Can't find anything in the owner's manual, can't find a part number for a replacement. Every time I search I get everything except an actual replacement OE type fuel filter. Is this something special that...
  15. tom3

    Transmission fluid/filter change - gasket?

    Coming up on 30k miles on our 2019 Tahoe and time for a minor tune up, air and cabin filter, transmission service. Looking at a replacement OE AC filter and it doesn't come with a pan gasket, can't find a PN for an OE type gasket either. So, question, is the factory filter re-usable? I'd...
  16. tom3

    2019 Tahoe wiper blades?

    I figure it's about time for new wipers. Looking around (Rock Auto) and see about 20 different types of blades that are listed for this 2019 Tahoe and they all look different than what I'm seeing on my Tahoe. The beam style blade is pretty standard but the attachment point is a weird looking...
  17. tom3

    Spare ignition key?

    Looking to get a spare key for the 2019 Tahoe. Don't see any chip or anything in this key, just grooves. Anybody had one made for this series SUV or truck? Dealer only or can a lock shop cut the grooves for this? Thanks.
  18. tom3

    Chrome wheels, plastic coated?

    Thinking about some chrome multi spoke wheels of some sort, OE styled. Friend of mine was telling me that all the current factory chrome wheels like this are actually chrome plastic coated. Says some guys remove that plastic and polish up the actual aluminum to get that type look. Are the...
  19. tom3

    Transmission service, changing bypass thermal valve, part numbers?

    Posted in wrong forum previously. Getting ready to drop the pan and change lube and filter on the 2019 Tahoe transmission. Like to change to the lower temp. thermal bypass thermostat valve while I'm into it. I see the original lower temp valve no.86774933 is "unobtainum" these days, searched...
  20. tom3

    Oil coolers, standard or option?

    Looking at the RPO codes on our 2019 and I see KC4 and KNP for engine and transmission coolers. Are these standard equipment on most Tahoes or an extra cooling deal. This a 5.3 4x4 and 6sp with trailering package but a 3:08 gear.
  21. tom3

    Current pricing, 2022 & 23

    This from another forum, maybe a good start for anyone in the market. For reference, here are the 2022 and 2023 Chevy Tahoe trim levels and their corresponding starting MSRPs, including the $1,895 destination freight charge: 2022 Tahoe LS – $53,795 LT – $59,295 RST –...
  22. tom3

    New battery install, question

    Had a new battery installed at the dealer for our 2019. Noticed that behind the passenger seat the floor mat was pulled out and our junk that we had stuffed under that seat was lying on the floor. Is there a module or something that would need unplugged or reflashed for the install? Noticed...
  23. tom3

    Battery type and replacement in a 2019

    Our Tahoe is over three years old now and I usually go four years on a premium battery. These vehicles seem to hit the batteries hard. Should I be looking for a new on or run it another year or two? What's in the 19? AGM or standard? We don't drive this a lot, sits for a week or two...
  24. tom3

    Transmission temperature readout, found it

    Took a road trip today and spent some time with the DIC looking for the trans temp readout. Finally got it by going through two or three screens to add it to the info menu. Drove 40 miles on the highway on a 70 degree day and the temp was 172 degrees. Went through town to the house and it went...
  25. tom3

    Trailering package rpo code info.

    Our 2019 Tahoe has a trailering package listed rpo Z82. I see code - KC4 engine oil cooler and KNP - Hd aux. trans cooling system. Are these added on coolers or built in to the radiator? Would this rig have the lower temp transmission thermostat? Also see a 3:08 rear end ratio which seems a...

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