169,000 original miles--what should I do? - Page 2 - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 Vortec 5.3L V8 Engine and Drivetrain > OEM Issues

OEM Issues Original Equipment Repairs and/or Problems

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  #11  
Old 08-23-2018, 06:23 AM
princej99 princej99 is offline
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2008 GMC Envoy SLE
Bordeaux Red Metallic 4.2L I6 4X4
Join Date: Jan 2018
Location: ont
Posts: 370
Quote:
Originally Posted by mddombrowski View Post
You and I both. Iím at 154k. Iím shooting for 300k without needing an engine or tranny. The 4L60E is the weak link IMO. Iíd probably drop a GM reman trans/t-case if needed. I still think itís a lower overall cost than dumping the car and going back to a car payment.
im at 137k kms or 86k miles.

long way to catch up.
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  #12  
Old 09-05-2018, 04:13 PM
John in RI John in RI is offline
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2005 BowTie TrailBlazer LT
Olympic White '50U' 4.2L I6 4X4
Join Date: Aug 2018
Location: Greene, RI
Posts: 40
Ambam has a truck with unchanged tranny fluid @ 169 thousand miles. IMO he should change the fluid and filter, NOT a FLUSH.

My first Trailblazer was an 04 that got 1 tranny fluid change - and that tranny died @ 190K. I recently bought my second Trailblazer, it's an 05 with 165K original mileage and a blown tranny,.... I'm pretty sure that the tranny fluid is original. (The second owner had it for 8 years and never changed it. ) For anyone reading this in the future I wanted to share a pic; This is what came out of the 05 tranny with 165,000 miles when I dropped it.




Tranny fluid is the color of old axle/gear oil, about as thin as water, and smells like dead fish. The reason you shouldn't flush all the fluid out is because there is a lot of debris in this old fluid that actually helps an old tranny internals activate. However; there is simply too much debris in oil like this too much debris causes problems by blocking the internal fluid passages By dropping the pan to replace the filter your going to be leaving a fair amount of old fluid in the tranny to mix with the new stuff.

IMO - This is just My Opinion - If you've got a 160+ mile tranny with original fluid,...... you should be saving for a tranny re-build cause it's GOING TO FAIL. At this point the tranny has been neglected and changing the fluid/filter in the pan might just help you to get a few extra miles from a tranny that should have already failed. Just leaving oil like this in the tranny and 'hoping for the best' isn't going to make anything better.

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  #13  
Old 09-05-2018, 04:20 PM
John in RI John in RI is offline
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2005 BowTie TrailBlazer LT
Olympic White '50U' 4.2L I6 4X4
Join Date: Aug 2018
Location: Greene, RI
Posts: 40
Picture =

http://berlinetta.info/mypics/Trailb...annyFluid1.JPG


Sorry no picture,..... Maybe it will show up once I reach 10 posts ??


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  #14  
Old 09-05-2018, 08:10 PM
russ455 russ455 is offline
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Rainier Buick Rainier
Graphite Metallic 4.2L I6 AWD
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Location: south bend
Posts: 5
High miles

My 07 rainier is at 292,000. Done the trans and transfer case fluids twice. Still runs well but I can tell it's down a little on power.....might be time to change spark plugs for the second time.
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  #15  
Old 10-09-2018, 01:56 PM
Ambam Ambam is offline
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2008 Chevy TrailBlazer LT
Silver, not sure of type 4.2L I6 4X4
Join Date: Aug 2014
Location: St. Louis, MO
Posts: 7
Ready to start

Ok, life went nuts but things are settling down. The vehicle now has full replacement of the front shocks/bearings/etc due to failure and new rear shocks as well. I had a mechanic do the front and I took care of the rear (it was only 4 bolts after all). Now I'm ready to look at the transmission fluid, and I'm not sure if I should be doing a "drain and fill" or a "Flush". I've looked at the fluid, and it is still a red color, clear, and viscous (not thick or sticky) . It doesn't look anything like the "bad" transmission fluids online. Would I be ok with just a drain and fill? Since I don't have the ability to safely dispose of the chemicals, I plan to take it to a shop to have it done. (I don't have a regular mechanic, but I've used CarX, Firestone, and the dealership previously)

Thanks!
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  #16  
Old 10-09-2018, 10:09 PM
John in RI John in RI is offline
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2005 BowTie TrailBlazer LT
Olympic White '50U' 4.2L I6 4X4
Join Date: Aug 2018
Location: Greene, RI
Posts: 40
Should be G-T-G with a filter and fluid change. If your current fluid is still red and looks/smells OK than you would probably be fine with a flush,...... but I'd stick with a filter and fluid.

If it's red then it can't possibly be 169K mile fluid.

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  #17  
Old 10-10-2018, 10:22 AM
Ambam Ambam is offline
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2008 Chevy TrailBlazer LT
Silver, not sure of type 4.2L I6 4X4
Join Date: Aug 2014
Location: St. Louis, MO
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Wink Thanks!

Quote:
Originally Posted by John in RI View Post
Should be G-T-G with a filter and fluid change. If your current fluid is still red and looks/smells OK than you would probably be fine with a flush,...... but I'd stick with a filter and fluid.

If it's red then it can't possibly be 169K mile fluid.

Well, technically it's a 160,000 mile fluid. The day I drove it off the lot (used, with 9k miles) I got less than hour down the road when the transmission failed. The dealer replaced it. And gave me free oil changes. And a loaner car. And begged I not go all "lemon law" on them. So, yes, it is less than 169k, technically

Ambam
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