Ain't that the truth. Very hard to find a genuine mechanic anymore.Ronzuki wrote:Another reason why a tech and his 'computer' wouldn't find squat being wrong. A TC is a purely mechanical device. Besides, if there weren't sensors or the programming (firmware) in place, one wouldn't expect the all knowing computer to tell you anything. Gone are the days of old school mechanics able to diagnose w/o an electronic device telling him what's wrong.
engine vibration
Alcohol, Tobacco, and Firearms
Should be a convenience store, not a government agency
Should be a convenience store, not a government agency
Yup... exactly what happened.LPSISRL wrote:I'm going to shift into neutral at about 10 MPH when coming to a stop and I bet it won't happen. That will tell you pretty much for sure that it's tranny. We should all try this test and see if we all get the same result.
Good to know it's not an isolated case... or it going to cost me dearly down the road.
A mass recall in a few years - like the Volkswagen Golf DSG saga?CLLee wrote:Yup... exactly what happened.LPSISRL wrote:I'm going to shift into neutral at about 10 MPH when coming to a stop and I bet it won't happen. That will tell you pretty much for sure that it's tranny. We should all try this test and see if we all get the same result.
Good to know it's not an isolated case... or it going to cost me dearly down the road.
David
Not likely to happen.murcod wrote:A mass recall in a few years - like the Volkswagen Golf DSG saga?CLLee wrote:Yup... exactly what happened.LPSISRL wrote:I'm going to shift into neutral at about 10 MPH when coming to a stop and I bet it won't happen. That will tell you pretty much for sure that it's tranny. We should all try this test and see if we all get the same result.
Good to know it's not an isolated case... or it going to cost me dearly down the road.
Ron
2010 Kizashi GTS, CVT, iAWD (3/10 build date)
2011 SX4 Premium Hatch, CVT, iAWD (12/10 build date)
2018 Mazda CX-5 iAWD Touring
2014 Wrangler JKUW (GONE, traded
)
1991 Samurai, 5-Speed, EFI, Soft-Top (
sold)
2010 Kizashi GTS, CVT, iAWD (3/10 build date)
2011 SX4 Premium Hatch, CVT, iAWD (12/10 build date)
2018 Mazda CX-5 iAWD Touring
2014 Wrangler JKUW (GONE, traded
) 1991 Samurai, 5-Speed, EFI, Soft-Top (
sold)Negative, unless the zuk employs some new whiz-bang TC technology, they either work as designed or they don't...nothing for 'programming' in a TC to control.murcod wrote: I'd imagine it is a programming issue as the torque converter lock should be some sort of electrical device?
http://auto.howstuffworks.com/auto-part ... verter.htm
Ron
2010 Kizashi GTS, CVT, iAWD (3/10 build date)
2011 SX4 Premium Hatch, CVT, iAWD (12/10 build date)
2018 Mazda CX-5 iAWD Touring
2014 Wrangler JKUW (GONE, traded )
1991 Samurai, 5-Speed, EFI, Soft-Top ( sold)
2010 Kizashi GTS, CVT, iAWD (3/10 build date)
2011 SX4 Premium Hatch, CVT, iAWD (12/10 build date)
2018 Mazda CX-5 iAWD Touring
2014 Wrangler JKUW (GONE, traded
) 1991 Samurai, 5-Speed, EFI, Soft-Top (
sold)I remember reading about similar issues on the sx4 forum. Some people upgraded their ground wires and that seemed to eliminate the shuddering/shaking issues at idle. It could very easily be something different but it wouldn't be a bad cheap test. I know the ground cables aren't much more then adequate on our cars.
What other vehicles use this exact transmission? I think I've read that Nissan uses this Jatco transmission. Maybe the Nissan Altima? Might be good to visit one of their forums and see if the same issues is occurring with other vehicles that use the same tranny.
If I'm not mistaken, it's in the SX4's w/ CVTs.
Ron
2010 Kizashi GTS, CVT, iAWD (3/10 build date)
2011 SX4 Premium Hatch, CVT, iAWD (12/10 build date)
2018 Mazda CX-5 iAWD Touring
2014 Wrangler JKUW (GONE, traded )
1991 Samurai, 5-Speed, EFI, Soft-Top ( sold)
2010 Kizashi GTS, CVT, iAWD (3/10 build date)
2011 SX4 Premium Hatch, CVT, iAWD (12/10 build date)
2018 Mazda CX-5 iAWD Touring
2014 Wrangler JKUW (GONE, traded
) 1991 Samurai, 5-Speed, EFI, Soft-Top (
sold)No, the lock up part in a modern torque converter is electronically controlled:Ronzuki wrote:Negative, unless the zuk employs some new whiz-bang TC technology, they either work as designed or they don't...nothing for 'programming' in a TC to control.murcod wrote: I'd imagine it is a programming issue as the torque converter lock should be some sort of electrical device?
http://auto.howstuffworks.com/auto-part ... verter.htm
from : http://www.baileyautomatics.com.au/torq ... rters.htmlLock up Torque converters
Lock up Torque converters have a clutch inside- the clutch grips together (controlled electronically) and allows better fuel economy by dropping the rpms down. When the clutch engages the converter locks the engine to the transmission input shaft so there is a direct connection between the motor and the transmission. It works like a fluid coupler, with an outside drum spinning, then the inside spins on the shaft of the transmission. This can produce tremendous heat and heat within the torque converter is bad for fuel economy! It can also transfer to the transmission or clutch and damage them by causing separation. The lock-up torque converter reduces the slippage which reduces heat which means better fuel economy.
They've been around for quite a few years like that. I know some auto 4WD owners mod the wiring to enable them to manually lock the torque converter by flicking a switch in the cabin.
David