Automatc Transmission adaptions

Hello

Searched and couldn't find an answer to this.

I had posted about loss of power at lower speed where if you lift off the gas the power comes back. Could be all sorts of things. I drive quite smoothly around town wjere it has been happening and not an aggressive driver my any means in terms of acceleration etc

What I've found is this issue doesn't happen when I drive more aggressively, or at least it hadn't happened yet when I drive with a heavier right foot.

I found a post on another forum , I think maybe an LR3 forum, where it was being hotly debated that the car having learned a certain driving style , might drop power if driven differently as the system can think there is something wrong.

I've not had the car long and did think about resetting adaptions but as it is higher mileage I figured they woukd have been set to account for component wear etc

This seems implausible to me, however if it is true might explain why driving more aggressively is keeping my issues away.

Could also be blind luck and pure coincidence.

Ant thoughts on this or is this nonsense?

My thoughts are, resetting adaptions should only be done when major mechanical items have been changed.

J

There is a 'soft' adaption clear which could be useful to you, definitely wouldn't do a hard adaption unless solenoids have been checked & changed as required. That said, the dynamic adaptions are a rolling 150 mile cycle IIRC, so if you're mindful of this, you can ease your transmission into behaving better over a decent journey or two.

Just done an adaptation on a Volvo xc70, running with just a percentage of its oil capacity. It eventually ended up trying to force itself to lock the tc up causing a fault saying the valve was stuck open ... After putting 3.25ltrs of oil back into it due to an oring leak and resetting it, it runs really well... The guy had been towing classic cars with it not to mention injector return flow issues on on on brand new bosch injectors of more then 30% flow differences... And over filled engine oil... I don't know how the box wasn't destroyed

If it's an older XC70, they are relatively nuke-proof, especially the T5's

Graculus said:

If it's an older XC70, they are relatively nuke-proof, especially the T5's

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2009 d5 2.4... Err somewhat particularly sensitive engine... Saying that, I've a client that has a 2005 v70 edition that ran all the way from England back to France on 30% petrol. Apparently not the first time he's done it his version of the pierburg egr isn't avaliable anymore


The world has lost the plot I tell thee....
Thars it I'm buying an effing horse

Graculus said:

If it's an older XC70, they are relatively nuke-proof, especially the T5's

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I'd love a v50 with t5 and awd, now that would be fun along with the focus chassis it uses

Mark Piercy said:

2009 d5 2.4... Err somewhat particularly sensitive engine... Saying that, I've a client that has a 2005 v70 edition that ran all the way from England back to France on 30% petrol. Apparently not the first time he's done it his version of the pierburg egr isn't avaliable anymore


The world has lost the plot I tell thee....
Thars it I'm buying an effing horse

Click to expand...

The only issue we really had was the pipe for the exhaust backpressure sensor blocking with carbon, most of the tech's hated changing them - I just had a bowden cable in a drill and powered through all those bends.... Maybe they got more problematic once beyond the dealer network? we had some old farts who would only use dealers though, I don't remember any fragility other than the driver!

Graculus said:

I don't remember any fragility other than the driver!

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You nailed it
My brothers volvos cylinder head broke down around the camshaft follower assembly on one of his.. Random problem I know.

Mark Piercy said:

2009 d5 2.4... Err somewhat particularly sensitive engine... Saying that, I've a client that has a 2005 v70 edition that ran all the way from England back to France on 30% petrol. Apparently not the first time he's done it his version of the pierburg egr isn't avaliable anymore


The world has lost the plot I tell thee....
Thars it I'm buying an effing horse

Click to expand...

A donkey & trap will do us for trips to the village store, horses require too much fuel.

Datatek said:

A donkey & trap will do us for trips to the village store, horses require too much fuel.

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Dude, we've a field each full of grass

Mark Piercy said:

Dude, we've a field each full of grass

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Yes, enough in my case for a Donkey but not enough for a horse. If I can sell the LHD P38, it might just buy me a donkey