Sicken gm automatic transmission

sequoias said:
Wirelessly posted (sent from a smartphone. )



I am talking about the reliabity and servicing them. Mechanics just don't like them because its modern. Lol.
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They dont seem to be to reliable. I have two friends that work at nissan as mechanics. Ive heard from both that they have a number of CVT issues, more than normal A/T cars. As stated above, its much simpler to kill a CVT than a normal A/T
 
Yesterday morning, I installed a new dipstick tube boot and dropped a oil pan to drain ATF, put a pan back. Refill synthetic ATF and moved my van out of the bay and parked on the lot. No time to drive test. I worked very busy to servicing 15 vehicles (alone mechanic in a station for week, my tech is away for a vacation) Lot stress.
Today my van finally launched and drove test in the late afternoon, I can't believe the shifting quality is the same as I bought a brand new van.... soft to medium upshift, and slide 1-2 upshift. On moderate to hard accelerate, I almost can't feel upshifts (hearie can listen the engine revs). Return to the shop, check sign of leaks, no leaks found. I'm thinking of hook up my pressure gauge in a tranny tomorrow,to see what the hydraulic pressure looks like. Hope to update you tomorrow or???
 
deafsmogtech said:
4 years old Fluid Evacuator. I hard use it for sucking fluids out of the reservoirs like coolant tank or power steering, brakes, can be bleeding brakes, recover overfilled ATF or flooded fluid or water. I will get a new one from the parts distributor soon.
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God, they are so tiny and hard to see. Wow, I plan to buy one same like you have one but it's break so easy. What brand of it?

deafsmogtech said:
oh, pics are too small. I have no idea how to resize these pics. Dst
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You cant resize from small to big or it will become more pixel. Just set your mobile camera's setting to large for picture before you take a new picture again.
 
sequoias said:
Wirelessly posted (sent from a smartphone. )



I am talking about the reliabity and servicing them. Mechanics just don't like them because its modern. Lol.
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No matter. The DCT is just new technology over CVT, auto tran and manual. I love DCT for powerful, quick, great reliability, and easy repair than auto tran. Semi-truck plan get DCT.
 
the highlander said:
no matter. The dct is just new technology over cvt, auto tran and manual. I love dct for powerful, quick, great reliability, and easy repair than auto tran. Semi-truck plan get dct.
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dct?
 
No time to take my van on the road for evaluate hydraulic pressure test today. Busy day again. I think I come to work in early morning to check tranny's heartbeat. Before I leave station, my service writer told me that he will loan a mechanic tomorrow from another station to helping me to working on the vehicles. That helps me. I grab my beer and relax at home to cool off my boiled head.
 
Reman Transmission Update

Hello, I evaluated the hydraulic pressure gauge in a reman tranny last week ago, compared to an old modded tranny. The line pressure in a reman tranny is 20 psi under than old tranny. They are still within the line pressure specs. I remember I added stiff springs (from shift kit) in a pressure regulator valve in the oil pump housing to increase line pressure = crispy upshift however the shift kit was not solve the bang and slide 1-2 upshift problems but I like firm/crispy upshifts. I maybe try another brand shift kit like TCM or B&M someday. Here is pressure test report from the reman tranny:

Line pressure specs: 55-189 PSI in Drive, Park or Neutral
64-324 PSI in Reverse

Gear Position:

Park 60PSI
REV 90 "
N 60 "
OD 60 "
Drive 60 "
2 60 "
1 60 "

The shifting quality is ok, the upshift acts like a little girl take a ballet lesson.
 
deafsmogtech said:
Hello, I evaluated the hydraulic pressure gauge in a reman tranny last week ago, compared to an old modded tranny. The line pressure in a reman tranny is 20 psi under than old tranny. They are still within the line pressure specs. I remember I added stiff springs (from shift kit) in a pressure regulator valve in the oil pump housing to increase line pressure = crispy upshift however the shift kit was not solve the bang and slide 1-2 upshift problems but I like firm/crispy upshifts. I maybe try another brand shift kit like TCM or B&M someday. Here is pressure test report from the reman tranny:

Line pressure specs: 55-189 PSI in Drive, Park or Neutral
64-324 PSI in Reverse

Gear Position:

Park 60PSI
REV 90 "
N 60 "
OD 60 "
Drive 60 "
2 60 "
1 60 "

The shifting quality is ok, the upshift acts like a little girl take a ballet lesson.
Click to expand...

You should use DCT. :)
 
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