4L80E. Uploaded by Jesús Guerrero. FAMOUS GM TRANSMISSION 4L80E, ENJOY IT!. Copyright: © All · Prueba Lírica. ldw · atg tape refill 1/4 · 2hw5n · rnr-b · clabb · biunvhp-b · bfkv18ts · sdve 9mm accessories · motorola sbv · 5a · au65wp20 · orizon. what cross members fit? what drive shaft yoke? part #? HERES SOME INFO ON THE 4L80E
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Dan Tucker transman prodigy. Thanks to all who responded!!!!!! Bob Ryan gave me a trick for checking the converter on the bench. Vehicle ahs not left shop, belongs to our local parts distributor and any hwlp will be greatly appreciated.
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I changed it and the same thing. At idle, the input speed is about two and a half times engine RPM. Good luck and post the fix. Brian Crisp huckssouth aol. Oldani Motorsports oldani forbin. I have a few questions.
After the rebuild it has quick and sloppy and and shift. Kirt Koeller – europetransman hotmail. So far I’ve searched fix databases to determine if truck was in limp mode and found that the output sensor reading on the scanner is erratic; the numbers with the Snap-On scanner go from 2 RPM up to and bounces around. It had even heat treated the direct drum. I checked around with some other people I know and they all thought or said that the atv 43 shouldn’t bea problem so I order the ecm and put it in an it worked great.
Luckily I had a very patient farmer. Best Match Best Match. Louis MO Jimmy Newman – cttranny aol. Replaced xtg and the flywheel and rebuilt tq.
That’s why I asked what the actual Sonnaflow numbers meant. Upon road test,yeppers the ole 68 popped back up.
There are so many varibles on reading data on the 4L80E’s. Warranty see all Warranty. I would start with a presure test this tranny is known for regulator problems. Also if you fix the AFL valve bore, I would peen those solenoid feed hole back down to about.
No codes were found, and even with the strange OSS readings, it had normal upshifts and worked fine. Found the front band smoked Rear band was not in good shape either replaced both Left the pump alone. 4l80s just return the one you purchased as defective. What will happen if I have put the tcc enable valve in the wrong way ,? Then try qtg manual and see how the bump feels.
Dale 4l80f Snyder – dalesnip hotmail.
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Hope someone out there has seen this before and can help me, I’m in day three and can’t change it no matter what I have tried. If nothing is found this unit will become a 4WD. Wed Oct 4l80ee Fri Sep 29 It is very likely that it does not need any further discussion and thus bumping it serves no purpose. Wed Sep 27 If you atv have a TISS reading when the wheels are turning, that is the culprit.
Just the way you describe it, it sounds like low pump pressure or volume. 4l80r for all the replies! Is it hidden somewhere? And install OEM solenoids. If you can’t get any movement, then you are going to need to put a scan tool on it and take a movie or snapshot of the problem as it happens. The problem is that 4l80d you put the trans at Reverse it will roll forward on a hill until you give it some throttle and when you put the selector in drive the vehicle will start to move forward and when you give it gas the RPM’s go up and the vehicle stays moving the same for a second then bang you start to move with the RPM’s I am hopeing some one will give me some insites as to what I did wrong.
Time to plant and farmer needs trucks so I play detective again and ask more? It was suggested to change the EPC solenoid and that is what I did.
Thu Nov 29 It appears that I have two different problems, the TCC not working, and the commanded high line pressure. To make a long story short, it 4,80e out that this vehicle STILL had warrantymiles and GM is having a terrible aatg with the injestor pumps and the fuel solenoid driver. With the trans in the truck would have never seen any of the problems but what I can’t figure is why everything on scanner checked out.
Replacement of same is required. If I was to guess, this unit had a worn PR boost valve and was opperated at high line long enough to wear the pump body. Item Location see all Item Location. I’m using a Genisys and I’m using the Pathfinder cartridge reader part of it. Also since you replaced the shift valve spring, is there any chance of a mixup or wrong spring installed.
Brand see all Brand. Also thanks to Bill from ATG, who was the first to suggest to replace the internal wiring harness.