I've been reading posts all morning and still could use some advise/opinions as I am still not certain what is going on.
Background: 02 Duramax crew, 140,000K and I have been running a Hypertech Stage 3 since this summer. I have been changing spin off every 12.5K along with fuel filter and change ATF at 25K intervals. It's my daily driver and I drive very conservatively in primarily city traffic and occasionally haul a 6-7Klbs car trailer.
Last change the ATF was dark red but no burnt smell. Used Valvoline Maxlife Dex/Merc. I hauled a 6K load over the North GA mountains (joke for you guys out west) last week with no problem and I was passing people going up the mountain. Fast forward a week.
On way to work yesterday I got into the trottle to pass some a$$hole in a toyota (common in Atlanta traffic who was driving eratically. Rolling at 10mph, I floored it and it shifted at about 3K through the gears but then got hung up at 50mph between 4-5? or 3-4? I backed off and it shifted.
Not sure how long the condition has existed because of High Diesel fuel costs, I haven't pounced on it like that for months. I tried to recreate the problem last night and it's not consistant. It got it to hang up again but after I put it in the haul/Tow mode it shifted fairly smoothly under WOT. I then turned off haul/tow and it shifted ok. The ATF is bright red, no burnt smell. I checked with the programmer and NO CODEs were thrown.
I will change the fuel filter and go to Stage II on the HyperTech. Hopefully it will buy me some time. From other posts, it sounds like I need to start saving for a rebuild. Any good Shops in Atlanta Area?
Thanks for your thoughts in advance,
Mark
Background: 02 Duramax crew, 140,000K and I have been running a Hypertech Stage 3 since this summer. I have been changing spin off every 12.5K along with fuel filter and change ATF at 25K intervals. It's my daily driver and I drive very conservatively in primarily city traffic and occasionally haul a 6-7Klbs car trailer.
Last change the ATF was dark red but no burnt smell. Used Valvoline Maxlife Dex/Merc. I hauled a 6K load over the North GA mountains (joke for you guys out west) last week with no problem and I was passing people going up the mountain. Fast forward a week.
On way to work yesterday I got into the trottle to pass some a$$hole in a toyota (common in Atlanta traffic who was driving eratically. Rolling at 10mph, I floored it and it shifted at about 3K through the gears but then got hung up at 50mph between 4-5? or 3-4? I backed off and it shifted.
Not sure how long the condition has existed because of High Diesel fuel costs, I haven't pounced on it like that for months. I tried to recreate the problem last night and it's not consistant. It got it to hang up again but after I put it in the haul/Tow mode it shifted fairly smoothly under WOT. I then turned off haul/tow and it shifted ok. The ATF is bright red, no burnt smell. I checked with the programmer and NO CODEs were thrown.
I will change the fuel filter and go to Stage II on the HyperTech. Hopefully it will buy me some time. From other posts, it sounds like I need to start saving for a rebuild. Any good Shops in Atlanta Area?
Thanks for your thoughts in advance,
Mark