75 Tourer Diesel Auto - Jumpy Gears

RoverRobson · 25th November 2017, 10:05

Hi all

Our Typhoon 75 has been parked up for around 6 months and we have just put it back on the road for daily use.

However it has developed an intermittent fault between gears 1, 2 and 3 where it jolts into the next gear when accelerating and jolts back down when coming to a stop.

I have read that it is usually the 2/4 brake duty solenoid that causes this but this error has only occurred 3 times out of 12 trips.

I was thinking that if the solenoid has gone, that's it. It doesn't come back therefore not an intermittent fault.

Anything else it could be or just lack of use and it may well just go away? There are no errors on the dashboard.

Cheers
Robson

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trikey · 25th November 2017, 10:26

Duty solenoid mate, i have swapped a few, not a terrible job.

RoverRobson · 25th November 2017, 10:34

Quote:

Originally Posted by trikey

Duty solenoid mate, i have swapped a few, not a terrible job.

Strange how it's only intermittent though?

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trikey · 25th November 2017, 10:59

Quote:

Originally Posted by RoverRobson

Strange how it's only intermittent though?

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Possibly sticking, i have had one do that, changed the duty and time solenoid while i was in there, problem solved.

Astraeus · 25th November 2017, 11:05

Also worth checking the rear engine mount. If failed it can give similar symptoms. Much easier job....

However as Trikey says it is not too difficult to change one of the solenoids if it is the solenoids. Info on here to check resistances on them so you know which one

Chris

genpk · 25th November 2017, 11:50

Had similar thing happen to me a while ago when I'd been away for a month hidY overseas and the car had been standing
.
It did it until it warmed up but each day got a little better .
I put it down to a sticking solenoid, changed the trans oil and never had the issue again

25th November 2017, 10:05	#1
RoverRobson Gets stuck in MG ZT-T Join Date: Feb 2010 Location: County Durham Posts: 887 Thanks: 307 Thanked 262 Times in 150 Posts	75 Tourer Diesel Auto - Jumpy Gears Hi all Our Typhoon 75 has been parked up for around 6 months and we have just put it back on the road for daily use. However it has developed an intermittent fault between gears 1, 2 and 3 where it jolts into the next gear when accelerating and jolts back down when coming to a stop. I have read that it is usually the 2/4 brake duty solenoid that causes this but this error has only occurred 3 times out of 12 trips. I was thinking that if the solenoid has gone, that's it. It doesn't come back therefore not an intermittent fault. Anything else it could be or just lack of use and it may well just go away? There are no errors on the dashboard. Cheers Robson Sent from my SM-G955F using Tapatalk __________________ Kind regards, Robson MG ZT-T SE Sports Auto 2.5 V6 180 Monogram Twilight - 1 of 1 Built "The Purple One"

25th November 2017, 10:26	#2
trikey Premium Trader Rover 75 Join Date: Nov 2010 Location: Devon Posts: 33,773 Thanks: 8,837 Thanked 14,831 Times in 8,030 Posts	Duty solenoid mate, i have swapped a few, not a terrible job. __________________ Lest we forget..

25th November 2017, 11:05	#5
Astraeus Regional Secretary North Scotland MG ZS Exclusive 1.0T Auto 2022 Join Date: Feb 2008 Location: Tayport Posts: 5,754 Thanks: 1,676 Thanked 1,855 Times in 1,058 Posts	Worth checking.. Also worth checking the rear engine mount. If failed it can give similar symptoms. Much easier job.... However as Trikey says it is not too difficult to change one of the solenoids if it is the solenoids. Info on here to check resistances on them so you know which one Chris

25th November 2017, 11:50	#6
genpk Posted a thing or two Rover 75 Saloon MGZT Join Date: Jul 2012 Location: Perth, AUSTRALIA Posts: 1,664 Thanks: 3 Thanked 461 Times in 299 Posts	Had similar thing happen to me a while ago when I'd been away for a month hidY overseas and the car had been standing . It did it until it warmed up but each day got a little better . I put it down to a sticking solenoid, changed the trans oil and never had the issue again