Transmission Ownership Surprises/Shocks

[pwuser151967054480]

Yeah and that's why Hyundai/Kia don't make a lot of sense in Pakistan as they're selling for honda/Toyota prices and you can't even trust their engines. Plus the parts are super expensive as well.

Unfortunately there really isn't any option here for people looking to buy new, relatively reliable sedans with an auto transmission so have to settle for honda or Toyota CVTs. Manuals are getting very rare and are becoming pretty much undriveable in local traffic.

The only reliable option with a true auto is Altis 1.6 4at which is also being discontinued next year and shifting to CVT. Plus that car is terrible to drive as well, horrible fuel economy and performance.

[crema]

The suzuki ags have the below notification as ags warning:

Thanks for sharing this. My wife owns AGS vehicle, I will check in its owner's manual.
I was not sure because I have driven this vehicle in severe traffic jams and never saw heat up indicator. Even though it's very commonly reported by Alsvin DCT owners.

In my presonal experience of driving Suzuki Cultus AGS from Zero to 18,000 kms, the AGS or ots components never heated in stop and go traffic and worked perfectly well. I upgraded to another car afterwards.

Other than routine oil change, I took it once to dealership at about 13k kms as it has started to shiver alot in 2nd gear pickup, they checked using the scan tool and serviced the TB after that it remained good.

[ifadey]

Actually, we own Alto AGS 2019 model. Even though it has only 12,600 km driven in 3 years, but it's used under severe conditions i.e, lots of short trips, and excessive gear shifting between 1, 2, and 3rd gears. Thank God so far I have not faced the clutch issues because at least I drive that vehicle in manual mode and never let the clutch slip. Whenever I feel the computer is slipping the clutch, I downshift.

the AGS or ots components never heated in stop and go traffic and worked perfectly well.

It looks like the heat up issue is more common with DCTs

[ifadey]

Corolla Grande CVT belt broke

[pwuser162557941033]

I wonder if people can chime in with how they drive their manual transmissions.

I was a passenger recently with someone who didn't engine brake at all. Every time they had to coast to a stop, they put the car in neutral and let go of the clutch, at any speed. Not only is this fuel-inefficient, it puts more wear on your brakes.

You're decoupling the transmission shafts constantly and having them rotating independently at different speeds with the clutch engaged. I don't think this causes any discernable wear but... why?

I'd imagine some basic manual transmission etiquette includes:

• Fully engage and disengage the clutch, avoid slip, especially in traffic.
• Don't rest your foot on the pedal. Don't rest your hand on the gear lever.
• Use engine braking when decelerating.
• At a stop, put the transmission in neutral and release the clutch pedal. Don't unnecessarily wear out your throwout bearing.
• Be gentle with the gear lever, allow the synchros to engage and spin to speed, don't force the gear in.
• Use the right gear and don't lug the engine, stay in the torque band. Don't overuse second, especially from a standstill.
• Allow for the revs to match the engagement point of the next gear, whether shifting up (wait for them to drop) or shifting down (apply throttle to match the revs.) Don't slip the clutch through the changes.
• Use the handbrake when ascending a hill from a standstill. Don't just mash the throttle at the clutch bite point.

Also, for torque converter transmissions, just leave it in D. Why shift to neutral constantly and wear out the selector and associated solenoids?

[ifadey]

Thanks for sharing these tips for the manual owners.

Use engine braking when decelerating.

This reminded me of engine braking with CVTs. Many people complain about poor engine braking with CVTs. I bought first CVT vehicle last year and I experienced the same so far. Initially I never understood why the engine braking is weak in D mode. There are S and L modes which increase the engine braking further to some extent.

I knew CVT is a weak transmission so from day 1, I keep monitoring CVT fluid temperatures as I drive. I learned a lot in the past 1 year what causes CVTF temp to rise which is one of the major reason for these transmission failures.

On my way back from a recent trip to the north, I used S and L modes to increase engine braking over the lengthy downhill drive. The CVTF temperatures shoot more up to 116 C with L mode. I quickly stopped the vehicle and let it cool down. It was eye-opening for me and on that day I understood why manufacturers don't program hard engine braking for CVTs. The engineers choose to let the brakes toast over the transmission which makes sense since the brake pads cost pennies in front of complete transmission.

The rise of CVTF temp to such level degrade the transmission fluid significantly. The additives in the fluid are shot. I changed the CVT fluid next day after reaching home even though it has not reached its change interval limit. Usually it's not a good idea to keep driving with fluid temperatures over 105 C.

From all these observations, we can conclude CVTs are not good for people who drive on hilly areas frequently. They overheat not only driving uphill, but also on downhill when you try to use increase engine braking. Basically CVTF temp rise at high engine rpm. In both uphill and downhill (with engine braking) situation, rpm increase significantly. One additional observation is engine coolant temp plays a big role in controlling CVTF temp.

CVTs work really well in city traffic and on flat highways/motorways (if the speed stays under limit) with impressive fuel economy numbers and the temperature stay within limits.

[Xulfiqar]

Wait till you see some “driver hazraat” who hold the car on an uphill ascent with the clutch at bite point claiming that they are “saving” the brakes.

🤪

I usually have a special LOL moment when I see people dance the lever side to side to check neutral in order to start the engine, while never pressing in the clutch pedal.

To the point that they have the clutch interlock disabled because “kya faltoo system hai”

A simple one position check to check for a gear engagement and then out of it confirms neutral position. No need to dance the lever and cause the shift fork detents to work dry.

[farhan_khan_h1]

What about those on hilly areas where passenger vans (bolans mostly) on downhill switches off the engine, gear in neutral and saving few drops of fuel.

[Xulfiqar]

They are trying to make a jake brake of the engine but actually causing issues because the engine oil will get sucked past the rings into the combustion chamber and being a side canted engine, will falter.

Better engine braking can be had by using a very low gear. (1st gear)

[Xulfiqar]

Very true, cvt will overheat extremely quick on both up and downhill efforts.

To the point of roasting the gearbox to its death.

[ifadey]

What these drivers don't know is fuel cut is automatically done on downhills when the vehicle is in gear.

Apart from that starting the engine consume significant fuel. It's better to keep it on if you know idling will be less than 30~60 sec.

[Xulfiqar]

Carburetor engine doesnt care. Idle fuel is still going in.

[ifadey]

Isn't Bolan van was converted to efi like Mehran Euro II?

[farhan_khan_h1]

Around 2012, they moved to the state of the art technology called EFI and they were so proud that they slapped the Euro ll stickers as well.
Anyways, it's one way or another, its better not to switch off the engine, even if the fuel is cut-off but the lubrication will be impacted is what I got from above.

[Xulfiqar]

The mountain bolans are 99% carby engines

[farhan_khan_h1]

After seeing your post and coming back from Naran, I've also replaced the CVTF, though honda was saying it's still good, no issues. Anyways, Ive changed it. Will by lofi as well to monitor.

[ifadey]

If your temperature stayed within limits, then you don't need to change it.
Temperature in my case rose up to 116C when going to Shogran from Kiwai. Same happened when going back to Kiwami from Shogran due to engine braking in L mode. It was a bad decision to take the car to Shogran. The road is very bad after 2 km.
Other than that temperature stayed within limits since roads were not very steep.

[farhan_khan_h1]

The way i used paddle shifters for engine braking from Naran till Balakot, I could hear noises.

[ifadey]

It's better to get the fluid change than the transmission change

[faizi91]

Salam To Every one
I need AGS Review
people says its jerks alot
its not smooth like CVT