Impending Autobox Epic Failure?

Sebastienclement · 24th November 2015, 17:50

Hello chaps,

Quick questions, only noticed this yesterday with my CDT auto. A couple of times when coasting (in D, but revs at idle) to a roundabout, then putting my foot back on the accelerator to enter the roundabout at anything above 10mph (so 2nd gear) I have noticed a momentary lack of drive and then it picks up the drive a little harshly. I don't know whether this is down to it (probably) needing a fluid change and cold weather or some impending borkage of doom?

Only noticed it last night and tonight on the way home from work. It's not normal torque converter slip, stick the foot on the accelerator and no drive for about 1 second then it picks up a little harshly.

Any ideas? No noises or errors on dash!

Cheers.

James.uk · 24th November 2015, 18:02

First thing to do is a gearbox oil change, hopefully that will solve the problem.

If that doesn't solve anything, please refer back to us.

...

Mr Bone · 24th November 2015, 18:10

Lower mount bush?

Sebastienclement · 24th November 2015, 18:10

Quote:

Originally Posted by Mr Bone

Lower mount bush?

I do have a fore-aft squidge noise...

James.uk · 24th November 2015, 18:14

>>>I do have a fore-aft squidge noise...<<<

?? and? do you wish to preserve it?

...

DMGRS · 24th November 2015, 19:06

If there's any play in the lower mount, it'll show up on engaging of drive.
Check your lower mount, and if faulty we have them here:
75/ZT CDTi Lower Engine Mount

I'd also consider a gearbox oil change as mentioned above - it transformed my automatic (I didn't realise how sluggish kickdown was before!)

Sebastienclement · 24th November 2015, 19:26

Thanks gents. All getting a bit costly this month! Suspension work, alignment, tyres and now these jobs :p

DMGRS · 24th November 2015, 19:44

Quote:

Originally Posted by Sebastienclement

Thanks gents. All getting a bit costly this month! Suspension work, alignment, tyres and now these jobs :p

If it's any consolation, this month my ZT-T decided to break it's 6 months of being un-broken, with a hefty list of jobs that I now need to do...

sworks · 25th November 2015, 18:16

I'm going to be different and suggest airflow meter, try disconnecting and seeing what it's like

Anon3 · 29th November 2015, 01:27

Quote:

no drive for about 1 second then it picks up a little harshly.

Doesn't sound like the lower mount to me.
If that 1 second is correct, surely that's way too long to take up any slack?

Do the revs rise in this 1 second gap?
If so, it could be low oil and it's taking that long to get sufficient pressure up.
If not, as Sworks suggests, it could be an engine problem.

24th November 2015, 17:50	#1
Sebastienclement Posted a thing or two Rover 75 Connoisseur SE Join Date: Nov 2012 Location: London Posts: 1,237 Thanks: 136 Thanked 160 Times in 85 Posts	Impending Autobox Epic Failure? Hello chaps, Quick questions, only noticed this yesterday with my CDT auto. A couple of times when coasting (in D, but revs at idle) to a roundabout, then putting my foot back on the accelerator to enter the roundabout at anything above 10mph (so 2nd gear) I have noticed a momentary lack of drive and then it picks up the drive a little harshly. I don't know whether this is down to it (probably) needing a fluid change and cold weather or some impending borkage of doom? Only noticed it last night and tonight on the way home from work. It's not normal torque converter slip, stick the foot on the accelerator and no drive for about 1 second then it picks up a little harshly. Any ideas? No noises or errors on dash! Cheers.

24th November 2015, 19:06	#6
DMGRS Discount MG Rover Spares Rover 75 CDTi, 2x MG ZS180 Join Date: Jun 2011 Location: Hythe, Southampton Posts: 11,320 Thanks: 456 Thanked 3,377 Times in 2,027 Posts	If there's any play in the lower mount, it'll show up on engaging of drive. Check your lower mount, and if faulty we have them here: 75/ZT CDTi Lower Engine Mount I'd also consider a gearbox oil change as mentioned above - it transformed my automatic (I didn't realise how sluggish kickdown was before!) __________________ Your trusted MG Rover specialist! Tel: 02380 001133 / Email: [email protected] We now have a 'chat' function on our site for even quicker replies. Give it a try! Remember - discount code FORUM5 for 5% off

25th November 2015, 18:16	#9
sworks Been absent for a while… Rover 75 Tourer, Classic mini Cooper S, Abarth 595 competizione, MG TF and a Hyundai Tucson PHEV Join Date: Feb 2007 Location: Cumbria Posts: 13,065 Thanks: 1,033 Thanked 1,686 Times in 1,040 Posts	I'm going to be different and suggest airflow meter, try disconnecting and seeing what it's like __________________ ................................................. 'Marmite' Possibly one of the most famous 75 tourers produced! left the production line as the last of only Three Rover 75 tourers produced in Trophy Yellow. 48 hours later Longbridge closed. The last sold ordered 75 Tourer. Paid for by the Phoenix Four and handed over by John Towers to the Warwickshire Northampton Air ambulance service as a Rapid Response vehicle

24th November 2015, 18:02	#2
James.uk Passed Away 2002 Pale Blue. Rover 75 CDTi Connoisseur auto. 170K miles Join Date: Dec 2008 Location: Near the M67. Posts: 14,509 Thanks: 199 Thanked 585 Times in 397 Posts	First thing to do is a gearbox oil change, hopefully that will solve the problem. If that doesn't solve anything, please refer back to us. ...

24th November 2015, 18:10	#3
Mr Bone Gets stuck in 75 Cdt. VW Touareg V6 Tdi. Galaxy 1.9Tdi (x2). R1200GS Join Date: Sep 2012 Location: Planet Zog Posts: 742 Thanks: 169 Thanked 206 Times in 145 Posts	Lower mount bush?

24th November 2015, 18:14	#5
James.uk Passed Away 2002 Pale Blue. Rover 75 CDTi Connoisseur auto. 170K miles Join Date: Dec 2008 Location: Near the M67. Posts: 14,509 Thanks: 199 Thanked 585 Times in 397 Posts	>>>I do have a fore-aft squidge noise...<<< ?? and? do you wish to preserve it? ...

24th November 2015, 19:26	#7
Sebastienclement Posted a thing or two Rover 75 Connoisseur SE Join Date: Nov 2012 Location: London Posts: 1,237 Thanks: 136 Thanked 160 Times in 85 Posts	Thanks gents. All getting a bit costly this month! Suspension work, alignment, tyres and now these jobs :p