transmission paranoia
Discussion
I might be suffering from it. or then again there might be an actual problem.
My car (Toyota Caldina GTT) has a tiptronic style transmission.
Sometimes when I go a little fast, and then back off it seems to get stuck in 3rd - well it does not want to go into 4th.
When it is in its "don't want to go into 4th" mood, if I change to manual control, I get a flashing light telling me it wont give me manual control, the only choices are to slow down enough to go back into 1st or do about 80mph, so it changes into 4th.
I am assuming that because it is a relatively modern automatic transmission, that it has decided I am going fast and does not want to annoy me by prematurely changing into 4th.
total paranoia? worth a trip to the mechanics?
My car (Toyota Caldina GTT) has a tiptronic style transmission.
Sometimes when I go a little fast, and then back off it seems to get stuck in 3rd - well it does not want to go into 4th.
When it is in its "don't want to go into 4th" mood, if I change to manual control, I get a flashing light telling me it wont give me manual control, the only choices are to slow down enough to go back into 1st or do about 80mph, so it changes into 4th.
I am assuming that because it is a relatively modern automatic transmission, that it has decided I am going fast and does not want to annoy me by prematurely changing into 4th.
total paranoia? worth a trip to the mechanics?
Sadly there could be several reasons for this.
Some auto gearboxes have a sport mod which will exhibit this kind of behaviour when activated. However there's usually a switch.
It's possible that your car has some form of adaptive or learning software so when being driven hard will automatically hold the gears for performance driving. Although I'd expect it to do this in every gear not just 3rd.
To further this thought, some sports modes will remove the OD gear. Does your tranny have 4 gears or more??
On my fathers Astra, sport mode makes it hold the gears longer, increase throttle response and removed 4th/OD so you only have 3 gears to use. But it still has a switch to select this mode.
Lastly it could be a fault with the tranny, maybe a sensor or something in the ECU/PCM or it could be mechanical such as the fluid pressure, clutch bands or OD unit.
Sorry I can't be more help.
Some auto gearboxes have a sport mod which will exhibit this kind of behaviour when activated. However there's usually a switch.
It's possible that your car has some form of adaptive or learning software so when being driven hard will automatically hold the gears for performance driving. Although I'd expect it to do this in every gear not just 3rd.
To further this thought, some sports modes will remove the OD gear. Does your tranny have 4 gears or more??
On my fathers Astra, sport mode makes it hold the gears longer, increase throttle response and removed 4th/OD so you only have 3 gears to use. But it still has a switch to select this mode.
Lastly it could be a fault with the tranny, maybe a sensor or something in the ECU/PCM or it could be mechanical such as the fluid pressure, clutch bands or OD unit.
Sorry I can't be more help.
Airbag said:
horton said:
total paranoia? worth a trip to the mechanics?
Look at the manual. Now go get a manual.horton said:
I would get a manual, firstly, I might need a manual license.
Worthwhile. I know they're perceived as slightly old-fashioned, but I've not driven a car without a clutch-pedal yet (i.e. auto or automated manual) that's as satisfying to drive as a good manual*.- And no, I haven't driven the latest Ferraris, but I have driven a DSG-equipped Audi.
300bhp/ton said:
Sadly there could be several reasons for this.
Some auto gearboxes have a sport mod which will exhibit this kind of behaviour when activated. However there's usually a switch.
It's possible that your car has some form of adaptive or learning software so when being driven hard will automatically hold the gears for performance driving. Although I'd expect it to do this in every gear not just 3rd.
To further this thought, some sports modes will remove the OD gear. Does your tranny have 4 gears or more??
On my fathers Astra, sport mode makes it hold the gears longer, increase throttle response and removed 4th/OD so you only have 3 gears to use. But it still has a switch to select this mode.
Lastly it could be a fault with the tranny, maybe a sensor or something in the ECU/PCM or it could be mechanical such as the fluid pressure, clutch bands or OD unit.
Sorry I can't be more help.
It does not have a sports mode. It is however a Toyota ECT? transmission, which I think means it does try to work out what driving mood I am in, and acts accordingly. Some auto gearboxes have a sport mod which will exhibit this kind of behaviour when activated. However there's usually a switch.
It's possible that your car has some form of adaptive or learning software so when being driven hard will automatically hold the gears for performance driving. Although I'd expect it to do this in every gear not just 3rd.
To further this thought, some sports modes will remove the OD gear. Does your tranny have 4 gears or more??
On my fathers Astra, sport mode makes it hold the gears longer, increase throttle response and removed 4th/OD so you only have 3 gears to use. But it still has a switch to select this mode.
Lastly it could be a fault with the tranny, maybe a sensor or something in the ECU/PCM or it could be mechanical such as the fluid pressure, clutch bands or OD unit.
Sorry I can't be more help.
I assumed that it is just misreading my intentions, and does not like me backing off when I have started to give it a little right foot.
It is 4 speed with overdrive, I can turn the overdrive on and off myself, I don't know if the transmission also does this automatically.
I think I will have the fluid checked, as once in a while it is a little clunky, although this might be my less than smooth driving style, but it won't hurt to have it checked (apart from paying for the check of course)
Parrot of Doom said:
How many miles has it had since it's last fluid and filter change?
not sure, I have only had it 6 weeks or so. but I think the filter was checked as part of the Toyota check, although I will have to have that confirmed by someone who can actually read the paperwork
OllieBirmingham said:
Airbag said:
horton said:
total paranoia? worth a trip to the mechanics?
Look at the manual. Now go get a manual.If I got a manual license, it would just be for a weekend toy, rather than my daily driver
horton said:
Parrot of Doom said:
How many miles has it had since it's last fluid and filter change?
not sure, I have only had it 6 weeks or so. but I think the filter was checked as part of the Toyota check, although I will have to have that confirmed by someone who can actually read the paperwork
On mine, its replaced every 60,000 miles or so. The filter and gasket are replaced at the same time. You can also buy transmission magnets that go on the inside of the pan, the idea being that on replacement of the fluid you check the magnet to see what metals are stuck to it (and it stops metal from circulating in the fluid and causing more wear).
Look in your engine bay, I'd be surprised if there isn't a transmission dipstick tube for checking. You'll probably be able to buy the dipstick from Ebay, that's what I did.
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