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grhhm

Integra's DCT cannot shift gear up while accelerating

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grhhm

Hi guys,

 

Another strange issue with the DCT in Honda NC700D Integra 2012.

 

When accelerating slowly, running the engine below 3500 RPM, the DCT works perfectly, shifting up from 1 to 6.

When accelerating at >3500RPM (let's say 4000 RPM), the DCT shifts up from 1 to 4 OK and then struggles to shift into 5th gear.

Temporary I workaround this issue by reducing the trust below 3500RPM when reaching 4th gear to switch to 5th.

Maybe this is mechanical problem because very similar behavior is in manual shifting mode. It sounds like servomotor tries to shift up but cannot... like something blocks it.

This is annoying. Likely, the DCT needs to be shown to a dealer.

 

Did anyone encounter this?

What was the root cause of the problem?

Electrical or mechanical?

 

Thanks!

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slowboy

Shift motor getting a bit tired and emotional? Maybe it needs more effort at higher revs to shift. Trouble is it’s an expensive thing to test by replacement. Most of the few issues on here with DCT seem to be shift motor related. 
 

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davebike

Either shift motor as Slowboy said or the Shift pin  Unless there is a fault light up

I tend to recommend an oil change and renew BOTH oil filters before stripping just incase

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MikeBike
19 hours ago, slowboy said:

Shift motor getting a bit tired and emotional? Maybe it needs more effort at higher revs to shift. Trouble is it’s an expensive thing to test by replacement. Most of the few issues on here with DCT seem to be shift motor related. 
 

@kayz1 (Lyn) says the way the dealer here checks them is to test with 12v and  feel if it can be held (resisted) by hand. Apparently used on quad bikes too and lots here for years so use a simple test to indicate if the problem lies with the motor.

Edited by MikeBike
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grhhm
On 4/6/2021 at 14:18, slowboy said:

tired and emotional?

Haha... and makes the owner nervous and sad :)

 

11 hours ago, davebike said:

oil change and renew BOTH oil filters

Yepp, the oil and at least one filter was replaced recently by the mechanic. Maybe he replaced two filters, IDK. 

 

@MikeBike Thanks for the 'handful' hint!

 

Thanks guys for the advices!

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