Go Back   The 75 and ZT Owners Club Forums > The 75 and ZT Owners Club Forums > Technical Help Forum
Register FAQ Image Gallery Members List Calendar Mark Forums Read
Notices

Reply
 
Thread Tools Display Modes
Old 25th October 2020, 12:19   #1
DRWMGTF
Loves to post
 
Rover 75 2.0 CDT Connoisseur, Rover 75 CDT Connoisseur SE, Rover 75 1.8 Connoisseur SE

Join Date: Sep 2017
Location: CONSETT
Posts: 477
Thanks: 617
Thanked 121 Times in 80 Posts
Default Very Sluggish Automatic Diesel

Afternoon,
Just been shopping. On my way there the car drove beautifully however on my way home the car appeared to be in "limp home" mode. More or less all down hill home so I got home eventually although very slowly. The last part of the journey home was on an uphill gradient and when I depressed the accelerator the car eventually appeared to accelerate but was still very sluggish. Any suggestions? Thanks for your help.
Regards David
DRWMGTF is offline   Reply With Quote
Old 25th October 2020, 13:10   #2
trikey
Premium Trader
 
trikey's Avatar
 
Rover 75

Join Date: Nov 2010
Location: Devon
Posts: 33,714
Thanks: 8,837
Thanked 14,831 Times in 8,030 Posts
Default

Intercooler hose split of come off?
__________________
Lest we forget..
trikey is offline   Reply With Quote
Old 25th October 2020, 15:07   #3
DRWMGTF
Loves to post
 
Rover 75 2.0 CDT Connoisseur, Rover 75 CDT Connoisseur SE, Rover 75 1.8 Connoisseur SE

Join Date: Sep 2017
Location: CONSETT
Posts: 477
Thanks: 617
Thanked 121 Times in 80 Posts
Default

Quote:
Originally Posted by trikey View Post
Intercooler hose split of come off?

Thanks Andy.
DRWMGTF is offline   Reply With Quote
Old 25th October 2020, 15:13   #4
Arctic
Give to Learn
 
Arctic's Avatar
 
Freelander 2

Join Date: Aug 2010
Location: West Midlands
Posts: 18,654
Thanks: 1,155
Thanked 6,407 Times in 3,874 Posts
Default

It could be the MAF unplug it and see if it make any difference, any black smoke when trying to get power, check the EGR hose also the O-rings any recent work done on the car ?
__________________
Arctic
Givology Learn to Give
Everything is Achievable

ad altiora tendo.

Check out our Nano meet dates
http://www.midlandsnanomeets.co.uk/

http://www.the75andztclub.co.uk/index.php?thepage=howto

" You do the work , we supply the expertise "
Arctic is offline   Reply With Quote
Old 25th October 2020, 18:23   #5
DRWMGTF
Loves to post
 
Rover 75 2.0 CDT Connoisseur, Rover 75 CDT Connoisseur SE, Rover 75 1.8 Connoisseur SE

Join Date: Sep 2017
Location: CONSETT
Posts: 477
Thanks: 617
Thanked 121 Times in 80 Posts
Default

Good evening,
Update on the car. I went out this afternoon after the Grand Prix to try the car and it is working perfectly or should I say normally! I haven't driven any other automatic diesels.
Would a split or detached intercooler hose create an intermittent problem? Similarly could a problem with the MAF or the EGR hose cause an intermittent problem? As regards the O rings, Jules replaced these with "Unrated viton intercooler seals" in February 2018.
Having looked through Jules's report on the car he said "It has EGR delete kit fitted too".
As regards recent work. I have had the rear springs and the front to back brake pipes replaced in May this year.
Before today I have not had any problems with car.
Any thoughts on what could be wrong with the car?
Thanks for your help.
Regards David
DRWMGTF is offline   Reply With Quote
Old 25th October 2020, 18:25   #6
DRWMGTF
Loves to post
 
Rover 75 2.0 CDT Connoisseur, Rover 75 CDT Connoisseur SE, Rover 75 1.8 Connoisseur SE

Join Date: Sep 2017
Location: CONSETT
Posts: 477
Thanks: 617
Thanked 121 Times in 80 Posts
Default

Quote:
Originally Posted by Arctic View Post
It could be the MAF unplug it and see if it make any difference, any black smoke when trying to get power, check the EGR hose also the O-rings any recent work done on the car ?
Thanks Steve.
See my comments about the car ....above or will it be below?
DRWMGTF is offline   Reply With Quote
Old 25th October 2020, 20:18   #7
2Diesels
Trader
 
ZT 260SE, Connoisseur CDT

Join Date: Mar 2009
Location: The Ancient Shire Of Bedlington
Posts: 12,597
Thanks: 68
Thanked 506 Times in 305 Posts
Default

Intercooler hose would be a permanent issue, has it had a fuel filter recently? Could be as simple as the filter clogged or collapsed internally.
2Diesels is offline   Reply With Quote
Old 25th October 2020, 20:21   #8
2Diesels
Trader
 
ZT 260SE, Connoisseur CDT

Join Date: Mar 2009
Location: The Ancient Shire Of Bedlington
Posts: 12,597
Thanks: 68
Thanked 506 Times in 305 Posts
Default

Or a brake hanging on, would explain why it was ok when you went back to it, ie the brake had cooled & wasn’t dragging as badly
2Diesels is offline   Reply With Quote
Old 25th October 2020, 20:48   #9
Arctic
Give to Learn
 
Arctic's Avatar
 
Freelander 2

Join Date: Aug 2010
Location: West Midlands
Posts: 18,654
Thanks: 1,155
Thanked 6,407 Times in 3,874 Posts
Default

Quote:
Quote:
Originally Posted by DRWMGTF View Post
Thanks Steve.
See my comments about the car ....above or will it be below?
Hi David.
A failing MAF will give an intermittent fault/reading alternately functioning properly and improperly at certain times, if it happens again then unplug the MAF to see if the car runs as it should pull in low gears as well as high and at speed.

https://www.the75andztclub.co.uk/for...74&postcount=1
__________________
Arctic
Givology Learn to Give
Everything is Achievable

ad altiora tendo.

Check out our Nano meet dates
http://www.midlandsnanomeets.co.uk/

http://www.the75andztclub.co.uk/index.php?thepage=howto

" You do the work , we supply the expertise "
Arctic is offline   Reply With Quote
Old 26th October 2020, 10:37   #10
MacRob
Loves to post
 
MacRob's Avatar
 
Rover 75 Saloon

Join Date: Sep 2019
Location: Deal, Kent
Posts: 264
Thanks: 44
Thanked 81 Times in 58 Posts
Default

I would say that the fact you were going down hill at the time and it wasn’t running right but started to do so once you started going up hill that it is nothing more than fuel starvation. The tank design has a ridge in it and with the sender been one side and the pump the other you can sometimes be showing more fuel than the pump can pick up. This is even more so going down hill or round a corner. Now you’re home and tried it again when on a flat surface the fuel is feeding as it should and so no problems.
__________________
MG Rover South East admin
MacRob is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 15:39.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright © 2006-2023, The Rover 75 & MG ZT Owners Club Ltd