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 9th November 2019, 18:06   #1
wixyw
Regular poster
 
Rover 75 Saloon

Join Date: Jan 2016
Location: Gargrave, Nr. Skipton, North Yorkshire
Posts: 98
Thanks: 33
Thanked 31 Times in 15 Posts
Default Strange symptoms on the 1.8Turbo

Whilst on the motorway last night, cruising along in top, the wife accelerated to pass a slow moving car, there was a short squealing noise from under the bonnet, the engine cut out with a jolt, then picked up again once the accelerator was eased off, this was followed by a strange smell ! Any idea as to what it may be ? It used to do a a similar cut out thing a couple of years ago, which was eventually put down to a sticking waste gate valve but only under very hard acceleration.

Phil
wixyw is offline   Reply With Quote
Old 9th November 2019, 18:25   #2
Yorkshire GOC
I really should get out more.......
 
Yorkshire GOC's Avatar
 
Rover 75 connoisseur se v6 auto

Join Date: May 2014
Location: Hull
Posts: 2,058
Thanks: 1,842
Thanked 623 Times in 469 Posts
Default

If the squealing sound you describe is like what i call a police siren and you lost power then i would be looking at the Turbo itself Give her a good rev to see if the exhaust has a bluish tinge - if so this points to a failing turbo.
-
__________________
She came off the Longbridge Line on 20-05-2003

The Silver Machine was the 13th of 160 Rover 75's to come off the production line that day and is the 100th of 527 Starlight Silver Rover 75 2.5 V6 Connoisseur SE Auto saloons listed in the build records produced world wide.
Yorkshire GOC is offline   Reply With Quote
Old 9th November 2019, 20:06   #3
wixyw
Regular poster
 
Rover 75 Saloon

Join Date: Jan 2016
Location: Gargrave, Nr. Skipton, North Yorkshire
Posts: 98
Thanks: 33
Thanked 31 Times in 15 Posts
Default

Thanks for that ! Will check it out in the morning.

Phil
wixyw is offline   Reply With Quote
Old 10th November 2019, 17:57   #4
Avulon
This is my second home
 
1.8t Tourer

Join Date: Oct 2011
Location: Tanelorn
Posts: 4,830
Thanks: 956
Thanked 1,148 Times in 916 Posts
Default

Or slipping Aux belt?
__________________
Need a T4 ?: T4 Owners Map thanks to Stevestrat ( use at your own risk)

Where?:
https://en.wikipedia.org/wiki/Tanelorn
Mods/Retrofits:

PCV vortex 'filter'; bluetooth; inline thermostat; reversing sensors; plenum spyhole ; headlamp washers ; Diy mp3 player replacing CD multichanger; FBH with remote; Headlamp washers; black/chrome front grille, rear blind; Xenon projectors
To do:
puddle lights; 2 Din cd/nav to fit; boot release button
Avulon is offline   Reply With Quote
Old 10th November 2019, 18:11   #5
COLVERT
This is my second home
 
R75 Saloon.

Join Date: Feb 2009
Location: France/or Devon.
Posts: 14,003
Thanks: 3,851
Thanked 2,167 Times in 1,816 Posts
Default

Quote:
Originally Posted by Avulon View Post
Or slipping Aux belt?
But would that make the engine cut out ??---
COLVERT is offline   Reply With Quote
Old 10th November 2019, 22:35   #6
wixyw
Regular poster
 
Rover 75 Saloon

Join Date: Jan 2016
Location: Gargrave, Nr. Skipton, North Yorkshire
Posts: 98
Thanks: 33
Thanked 31 Times in 15 Posts
Default

It cuts out with a real jolt, then, when you ease off it's back in. Put your foot down again and it cuts out !
wixyw is offline   Reply With Quote
Old 11th November 2019, 11:42   #7
Sheraton
Posted a thing or two
 
Rover 75 1.8t

Join Date: Oct 2015
Location: Edinburgh
Posts: 1,377
Thanks: 384
Thanked 409 Times in 267 Posts
Default

Quote:
Originally Posted by wixyw View Post
It cuts out with a real jolt, then, when you ease off it's back in. Put your foot down again and it cuts out !

I'm not sure about the "Squealing Noise" or "Strange Smell" mentioned in your initial post, however - this sounds like fuel cut - if not as a result of Overboost relating to Boost Control issues (faulty Solenoid, Hoses not connected or sticking Wastegate)

Could it be Fuel Filter Seperation ?




Paul.
Sheraton is offline   Reply With Quote
Old 11th November 2019, 13:56   #8
COLVERT
This is my second home
 
R75 Saloon.

Join Date: Feb 2009
Location: France/or Devon.
Posts: 14,003
Thanks: 3,851
Thanked 2,167 Times in 1,816 Posts
Default

As the post above or crank sensor problems.
COLVERT is offline   Reply With Quote
Old 11th November 2019, 19:06   #9
T-Cut
This is my second home
 
Rover75 and Mreg Corsa.

Join Date: Nov 2006
Location: Sumweer onat mote o'dust (Sagin)
Posts: 21,751
Thanks: 341
Thanked 3,660 Times in 2,924 Posts
Default

Quote:
Originally Posted by wixyw View Post
Whilst on the motorway last night, cruising along in top, the wife accelerated to pass a slow moving car, there was a short squealing noise from under the bonnet, the engine cut out with a jolt, then picked up again once the accelerator was eased off, this was followed by a strange smell!
By 'cut out' do you mean it lost power or it effectively switched off? Travelling at speed with the engine in gear, it would act as a heavy brake if it had stopped firing. The car would slow down quite quickly.
Could the strange smell be from an overheated clutch? If it stopped firing at motorway speed and was then restarted on the clutch, I imagine that would create a lot of friction heat/smoke, which has a quite unusual smell.

Quote:
Any idea as to what it may be ? It used to do a a similar cut out thing a couple of years ago, which was eventually put down to a sticking waste gate valve but only under very hard acceleration.
Turbocharger issues have been highlighted and need checking out. It could also be fuel starvation during high power demand. The Fuel Filter Syndrome (FFS) has also been suggested and could be involved if the car is later than 2001. Is it? (Your profile says you have a diesel ??)

TC
T-Cut is offline   Reply With Quote
Old 12th November 2019, 20:35   #10
wixyw
Regular poster
 
Rover 75 Saloon

Join Date: Jan 2016
Location: Gargrave, Nr. Skipton, North Yorkshire
Posts: 98
Thanks: 33
Thanked 31 Times in 15 Posts
Default

Will look into all the suggestions, thanks, much appreciated.

To describe the cutting out, you press the throttle, the car picks up, it starts to accelerate then just cuts out for a second or two. It is quite severe, you can feel a jolt, then it just picks up again. but by that time you have lost revs and momentum. No lights come on the dash, but for a second or so the engine is dead.

The car is a 2003 K series 1.8T tourer. I have a diesel, just never got around to adding the tourer on !

A friend has plugged it into his garage computer and it has come up with two faults, a misfire and a weak mixture, if this throws any more light on the problem.

Phil
wixyw 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 06:26.


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