Diesel Manual feeling resistance when driving

jim_k · 4th February 2018, 14:10

Hi,
I've got a 2001 75 manual diesel with ~75k miles. I tend to use the car only at weekends but noticed something strange again today. I was doing 30mph in 3rd gear and when I lifted my foot of the accelerate and the car started to slow I detected some sort of resistance. It was a sensation pulling the car speed down a little like if you are driving on shingle or if you have a flat tyre.

Tyres are all inflated.
Clutch is good.
Brakes are all good and recently had new front calipers and pads.
Car doesn't feel like it's got a brake jammed on - doesn't pull to one side or anything

There isn't a loud sound however I can sense an almost rubbing sensation a bit like driving in gravel / a rough surface or flat tyre

I took the car for a 20min journey and it cleared completed. I've noticed this before. Any suggestions on what this can be appreciated, is there anything I can do now as I wonder if this is the start of some problem?

Many thanks.

Rick-sta · 4th February 2018, 14:31

hi mate, I know you've mentioned that your brakes are ok, but I had the same on my diesel ZT and it was due to a sticky rear caliper. It wasn't completely seized, it just wasn't releasing completely so was slightly applied at all times and every now and again it would fully release. Could feel it dragging the car's speed and power down and after some time it would cause a slight vibration too.

After a long journey the brake disc and even the wheel would give off quite a bit of heat, and you could smell burning from the brake, which made it clear it was a sticky caliper.

On short journeys it wasn't too obvious that the caliper was sticking, was more noticeable once the brake + disc got hot. It never caused the car to pull to one side either.

jim_k · 4th February 2018, 14:38

Thanks for that. I had a front brake stuck on last year so maybe what you describe is the back ones playing up. This would make sense. It seems to clear up after a short drive.

Comfortably Numb · 5th February 2018, 22:14

If you only drive it at weekends, with the winter weather, you can get quite a build up of surface rust on the discs, and if the pads do not back off much, they will be wearing this off for the first few miles. Look at the faces of your discs before you set off next weekend, and then check them once the sound has disappeared- they will be much shinier.

jim_k · 30th March 2018, 13:48

A quick update. My mobile mechanic jacked up the car the other day. He notice the drivers side wheel rotate freely. The passenger side wheel did not. He checked the calipers and all good.
He took it for a drive initially and noticed nothing so it's not that bad yet. We think it could be a wheel bearing although he also mentioned the diff... Any suggestions of what it could be?

slovcan · 30th March 2018, 14:33

Everyone should have one of these at home https://en.wikipedia.org/wiki/Infrared_thermometer . After a drive immediately check the brake rotor temps through the wheel spokes, if possible, or even the wheel itself by the lug bolts (same place on every wheel). If you have a sticking caliper (or even a worn bearing, but less obvious until it gets bad) you will see a noticeable temp spike.

Ravinder is having a similar problem, isn't he? Do these cars have a limited slip differential?

Cheers,
Glenn

oswestryalex · 30th March 2018, 19:42

Hi,
I had a leaking power steering pump that caused problems that might be similar to these - easy to check - see if there's any weeping of power steering fluid from the pump.

jim_k · 30th March 2018, 23:27

Hi, Thanks for the replies. The mechanic pushed open the callipers to double check they are not fouling or causing resistance. He's very honest so I'm in good hands. He mentioned the diff but said problems such as these are normally very obvious and the noise is not consistent with a diff issue. I'll check power steering levels tomorrow. Please can I ask how they would cause these symptoms?

There is certainly some noticeable resistance, a very slight rubbing sound akin to corrosion on brake disks or a very flat tyre (but it's not these). I'm sure it's on the front wheels. Thanks again.

Ravinder · 31st March 2018, 00:57

I’ve had three sticky calipers over the last couple of years. Easiest way to tell is after driving is touch all the wheels. All the wheels should be quite cool, even after a drive. IF one is quite warm or hot, then it’s likely that caliper is sticking which will cause drag, burning smell etc.

As someone mentioned, I currently have an issue with my front passenger side wheel not spinning freely when car is in the air. I suspect the flexi hose has collapsed internally. I have a replacement on order and this will be changed soon which I hope fixes this issue.

Ravinder · 31st March 2018, 01:06

https://the75andztclub.co.uk/forum/s...d.php?t=280937

4th February 2018, 14:10	#1
jim_k Avid contributor Rover 75 saloon Join Date: Sep 2017 Location: Reading Posts: 199 Thanks: 47 Thanked 44 Times in 31 Posts	Diesel Manual feeling resistance when driving Hi, I've got a 2001 75 manual diesel with ~75k miles. I tend to use the car only at weekends but noticed something strange again today. I was doing 30mph in 3rd gear and when I lifted my foot of the accelerate and the car started to slow I detected some sort of resistance. It was a sensation pulling the car speed down a little like if you are driving on shingle or if you have a flat tyre. Tyres are all inflated. Clutch is good. Brakes are all good and recently had new front calipers and pads. Car doesn't feel like it's got a brake jammed on - doesn't pull to one side or anything There isn't a loud sound however I can sense an almost rubbing sensation a bit like driving in gravel / a rough surface or flat tyre I took the car for a 20min journey and it cleared completed. I've noticed this before. Any suggestions on what this can be appreciated, is there anything I can do now as I wonder if this is the start of some problem? Many thanks. Last edited by jim_k; 4th February 2018 at 14:12..

4th February 2018, 14:31	#2
Rick-sta This is my second home MG ZT 2.0 CDTI+ in Typhoon, MG TF 135 in Typhoon & Rover 75 Connoisseur CDTI SE in Pearl Black Join Date: Oct 2012 Location: Norfolk Posts: 7,534 Thanks: 2,718 Thanked 2,827 Times in 1,462 Posts	hi mate, I know you've mentioned that your brakes are ok, but I had the same on my diesel ZT and it was due to a sticky rear caliper. It wasn't completely seized, it just wasn't releasing completely so was slightly applied at all times and every now and again it would fully release. Could feel it dragging the car's speed and power down and after some time it would cause a slight vibration too. After a long journey the brake disc and even the wheel would give off quite a bit of heat, and you could smell burning from the brake, which made it clear it was a sticky caliper. On short journeys it wasn't too obvious that the caliper was sticking, was more noticeable once the brake + disc got hot. It never caused the car to pull to one side either. __________________ How to retrofit Cruise Control on a diesel with no OEM wiring in place: Link How to retrofit heated electric memory seats with no OEM wiring in place: Link How to operate FBH and ATC via text Link How to restore cloudy projector headlights Link

30th March 2018, 14:33	#6
slovcan Gets stuck in 75 Tourer CDT MK2 manual in Glorious Grey Join Date: Jan 2018 Location: Slovakia Posts: 987 Thanks: 926 Thanked 346 Times in 252 Posts	Everyone should have one of these at home https://en.wikipedia.org/wiki/Infrared_thermometer . After a drive immediately check the brake rotor temps through the wheel spokes, if possible, or even the wheel itself by the lug bolts (same place on every wheel). If you have a sticking caliper (or even a worn bearing, but less obvious until it gets bad) you will see a noticeable temp spike. Ravinder is having a similar problem, isn't he? Do these cars have a limited slip differential? Cheers, Glenn __________________ Southern Slovakia Anything can happen in Formula 1 and usually does - Murray Walker 1999 Triumph Trophy 900, Saddlesore 1600, Iron Butt Riders Association #63720 2005 Rover 75 CDT Tourer MK2

31st March 2018, 00:57	#9
Ravinder This is my second home Rover 75 saloon x2, Rover 75 Tourer x2, Rover 220 Coupe Turbo Join Date: Aug 2010 Location: Kirkcaldy, Fife Posts: 9,036 Thanks: 2,278 Thanked 2,852 Times in 1,718 Posts	I’ve had three sticky calipers over the last couple of years. Easiest way to tell is after driving is touch all the wheels. All the wheels should be quite cool, even after a drive. IF one is quite warm or hot, then it’s likely that caliper is sticking which will cause drag, burning smell etc. As someone mentioned, I currently have an issue with my front passenger side wheel not spinning freely when car is in the air. I suspect the flexi hose has collapsed internally. I have a replacement on order and this will be changed soon which I hope fixes this issue. __________________ Wanted - Indian bride. Cash waiting. (All sorted - bargain) First name and forum name: Ravinder Rover 75 2.0 CDT Connoisseur SE 116 (160 remap) Royal Blue (JFM) This vehicle was the 50,481st 75 to run off the production line, out of 112,381 This vehicle was the 2,238th 75 CDT Connoisseur SE to be made out of 3,775 This vehicle was the 5,002nd 75 in Royal Blue (code: JFM) to be made out of 14,420 Royal Blue 75s

31st March 2018, 01:06	#10
Ravinder This is my second home Rover 75 saloon x2, Rover 75 Tourer x2, Rover 220 Coupe Turbo Join Date: Aug 2010 Location: Kirkcaldy, Fife Posts: 9,036 Thanks: 2,278 Thanked 2,852 Times in 1,718 Posts	https://the75andztclub.co.uk/forum/s...d.php?t=280937 __________________ Wanted - Indian bride. Cash waiting. (All sorted - bargain) First name and forum name: Ravinder Rover 75 2.0 CDT Connoisseur SE 116 (160 remap) Royal Blue (JFM) This vehicle was the 50,481st 75 to run off the production line, out of 112,381 This vehicle was the 2,238th 75 CDT Connoisseur SE to be made out of 3,775 This vehicle was the 5,002nd 75 in Royal Blue (code: JFM) to be made out of 14,420 Royal Blue 75s

4th February 2018, 14:38	#3
jim_k Avid contributor Rover 75 saloon Join Date: Sep 2017 Location: Reading Posts: 199 Thanks: 47 Thanked 44 Times in 31 Posts	Thanks for that. I had a front brake stuck on last year so maybe what you describe is the back ones playing up. This would make sense. It seems to clear up after a short drive.

5th February 2018, 22:14	#4
Comfortably Numb Posted a thing or two Rover 75 Saloon Join Date: Dec 2017 Location: Penrith Posts: 1,336 Thanks: 165 Thanked 303 Times in 241 Posts	If you only drive it at weekends, with the winter weather, you can get quite a build up of surface rust on the discs, and if the pads do not back off much, they will be wearing this off for the first few miles. Look at the faces of your discs before you set off next weekend, and then check them once the sound has disappeared- they will be much shinier.

30th March 2018, 13:48	#5
jim_k Avid contributor Rover 75 saloon Join Date: Sep 2017 Location: Reading Posts: 199 Thanks: 47 Thanked 44 Times in 31 Posts	A quick update. My mobile mechanic jacked up the car the other day. He notice the drivers side wheel rotate freely. The passenger side wheel did not. He checked the calipers and all good. He took it for a drive initially and noticed nothing so it's not that bad yet. We think it could be a wheel bearing although he also mentioned the diff... Any suggestions of what it could be?

30th March 2018, 19:42	#7
oswestryalex Loves to post Rover 75 1.8T connoisseur saloon 2003 in blue , MG ZT 190+ 2003 Join Date: Jul 2012 Location: Oswestry Posts: 308 Thanks: 159 Thanked 99 Times in 57 Posts	Hi, I had a leaking power steering pump that caused problems that might be similar to these - easy to check - see if there's any weeping of power steering fluid from the pump.

30th March 2018, 23:27	#8
jim_k Avid contributor Rover 75 saloon Join Date: Sep 2017 Location: Reading Posts: 199 Thanks: 47 Thanked 44 Times in 31 Posts	Hi, Thanks for the replies. The mechanic pushed open the callipers to double check they are not fouling or causing resistance. He's very honest so I'm in good hands. He mentioned the diff but said problems such as these are normally very obvious and the noise is not consistent with a diff issue. I'll check power steering levels tomorrow. Please can I ask how they would cause these symptoms? There is certainly some noticeable resistance, a very slight rubbing sound akin to corrosion on brake disks or a very flat tyre (but it's not these). I'm sure it's on the front wheels. Thanks again.