HighClass SS Posted January 28, 2014 Report Share Posted January 28, 2014 The only way to say this is the WINTER been hell on truck. I noticed both my tranny cooler lines were leaking, haven't replaced yet due to -20. But I had NTB due a flush and filter figuring I'll go back once a swapped the lines for a fill. Now up shifting has become a struggle it seems. It takes it about 300RPM or 5-10SECS up shift from any gear. When im at 40% under on throttle the truck shifts fine. codes are: P0116 Engine Coolant Temperature Circuit Range/Performance P0125 Insufficient Coolant Temperature for Closed Loop Fuel Control P0128 Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature) P0131 O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1) P0132 O2 Sensor Circuit High Voltage (Bank 1 Sensor 1) P0420 Catalyst System Efficiency Below Threshold (Bank 1) P0430 Catalyst System Efficiency Below Threshold (Bank 2) O2 sensors need replacing? P0740 Torque Converter Clutch Circuit Malfuction P0741 Torque Converter Clutch Circuit Performance or Stuck Off p0740-1 are my tranny issues what do you think deal is? I am redoing both drive shafts u-joints and balance. Also a front driveside diff seal.This thursday. Quote Link to comment Share on other sites More sharing options...
NipRing Posted January 28, 2014 Report Share Posted January 28, 2014 (edited) I just replaced all four of my O2 sensors last weekend. After seeing the prices at Autozone (anywhere from 60-80 each) I did a lot of searching on ebay. Best prices on both the up and down sensors were from the same seller. I paid $112 shipped for all four and got them in 5 days. Heres one http://www.ebay.com/itm/150837315003?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649 Heres the other http://www.ebay.com/itm/380812422839?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649 Hope this helps And yes, its cold as f*** out! Edited January 28, 2014 by NipRing (see edit history) Quote Link to comment Share on other sites More sharing options...
synyster_SS Posted January 28, 2014 Report Share Posted January 28, 2014 I'd be paying attention to the coolant related and torque converter clutch DTC's. If your truck is thinking it's stuck in open loop because the engine coolant isn't getting up to operating temperature, it's going to shift like a bag of shit. Open loop means it's running off of a pre-determined set of tables, the PCM isn't using feedback from the O2 sensors. Hence why you are getting O2 sensor codes. Don't throw parts at it, electrical diagnosis to figure out your problems are going to be your best bet. Hope that helps! Quote Link to comment Share on other sites More sharing options...
HighClass SS Posted January 29, 2014 Author Report Share Posted January 29, 2014 Well I checked the tranny level and its fnnn 3/4" over the hash mark. Called NTB they said bring it in. But the question remains what damage can happen by over filling it? Quote Link to comment Share on other sites More sharing options...
HighClass SS Posted January 29, 2014 Author Report Share Posted January 29, 2014 I just replaced all four of my O2 sensors last weekend. After seeing the prices at Autozone (anywhere from 60-80 each) I did a lot of searching on ebay. Best prices on both the up and down sensors were from the same seller. I paid $112 shipped for all four and got them in 5 days. Heres one http://www.ebay.com/itm/150837315003?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649 Heres the other http://www.ebay.com/itm/380812422839?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649 Hope this helps And yes, its cold as f*** out! ThankSS Quote Link to comment Share on other sites More sharing options...
HighClass SS Posted February 4, 2014 Author Report Share Posted February 4, 2014 Trans is going bad! Quote Link to comment Share on other sites More sharing options...
cb2big4u Posted February 4, 2014 Report Share Posted February 4, 2014 I did a flush on my trans at 50-60 thousand and it ended up shiting the bed at 70 thousand. I won't flush again. Sent using Tapatalk. Quote Link to comment Share on other sites More sharing options...
Downeast Johnny Posted February 5, 2014 Report Share Posted February 5, 2014 Trans is going bad! Bummer. Fluid smell burnt? Rebuild her stronger than ever. FTW. Quote Link to comment Share on other sites More sharing options...
HighClass SS Posted February 8, 2014 Author Report Share Posted February 8, 2014 th Bummer. Fluid smell burnt? Rebuild her stronger than ever. FTW. thanks. i having trouble deciding. 1. rebuild stock $1400 or buy reman from GM +/-$ 2000 2. stage 2 hd kit with a 24 or 2500 stall $1900 3. i found a performance 4l65e at gm performance but i cant find any info on it for $2200 p# 19260380 what to do errrrrrrrrrr! th thanks. i having trouble deciding. 1. rebuild stock $1400 or buy reman from GM +/-$ 2000 2. stage 2 hd kit with a 24 or 2500 stall $1900 3. i found a performance 4l65e at gm performance but i cant find any info on it for $2200 p#19260380 what to do errrrrrrrrrr! and no jus had it flushed new ujoints and front left diff seal and rear tcase seal Quote Link to comment Share on other sites More sharing options...
onebadmax Posted February 9, 2014 Report Share Posted February 9, 2014 FLT level 5 2295. Problem solved. Quote Link to comment Share on other sites More sharing options...
demonte1997 Posted February 10, 2014 Report Share Posted February 10, 2014 Was the trans giving you symptoms of going south prior to the flush? If it was leaking from the cooler lines prior, that's one thing. But having it flushed couldn't have done anything good for the system. It seems like every other time I hear someone doing this on a trans system, something terrible happens. The flush seems like a good idea, in theory. But it just stirs up any silt and debris in the system. That debris ends up clogging passages and solenoids, which ultimately ruins the trans because it is so sensitive to pressures. I probably missed something but if I am close to hitting the situation with my blurb above, you probably should be asking the shop to compensate you at least partially for the rebuild. Quote Link to comment Share on other sites More sharing options...
HighClass SS Posted February 10, 2014 Author Report Share Posted February 10, 2014 Was the trans giving you symptoms of going south prior to the flush? If it was leaking from the cooler lines prior, that's one thing. But having it flushed couldn't have done anything good for the system. It seems like every other time I hear someone doing this on a trans system, something terrible happens. The flush seems like a good idea, in theory. But it just stirs up any silt and debris in the system. That debris ends up clogging passages and solenoids, which ultimately ruins the trans because it is so sensitive to pressures. I probably missed something but if I am close to hitting the situation with my blurb above, you probably should be asking the shop to compensate you at least partially for the rebuild. My good guy at the service counter but not at chevy anymore told me the same. he did it on a 5.3 and he said it drove in and never drove out flush took the trans right out. hes been a service provider from chevy to gmc to vw i been bringing all my vehicles since 16. its the stealership that i dont like. but he swears by you should drop the pan and filter change an adding on all vehicles. flush is to violent. should of called him first but damn coupons. and ya to the trans leak. Quote Link to comment Share on other sites More sharing options...
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