V6 loss of low down power.

sjc · 13th June 2011, 21:09

In the last couple of hundred miles, my car ( 2.5 V6 auto 46K miles)has suddenly felt sluggish at low revs. It happens in any gear, and is particularly frustrating when pulling away, or when cruising at low revs and it suddenly needs to cog down a gear when you increase speed a little. There is still a step iup n performance at around 3000 revs, so I'm not sure it's a VIS motor.
Any other ideas ,it feels like it's missing 30 BHP or do?

Rabett_Rover · 13th June 2011, 21:11

Well if you want your VIS motors testing I am happy to do it

Thomas · 13th June 2011, 21:12

Moved to technical help forum.

sjc · 14th June 2011, 07:33

Quote:

Originally Posted by Rabett_Rover

Well if you want your VIS motors testing I am happy to do it

Cheers for that.It could just be me imagining, but it would put my mind at rest.

Rabett_Rover · 14th June 2011, 07:59

Quote:

Originally Posted by sjc

Cheers for that.It could just be me imagining, but it would put my mind at rest.

If you want to drop me a PM we can arrange a time,

Lewis

sjc · 23rd June 2011, 07:35

Hi Lewis, have hada problem with the fan ( repalcement on it's way from Jules) and strangely since I've kept teh air-com off so as to not have the fans ( that have obviously been struggling, if working at all) kicking in the lethargy in the lowdown performance seems to have gone. When the fan is fitted will report back,but just wondered if it could be connected at all!

daveb57 · 24th June 2011, 21:00

Hi mate,

Just a thought , take a look at this thread from 'tother side'.

http://forums.mg-rover.org/showthread.php?t=320933

If you have a bit of play in the accelerator pedal then do the simple mod that is shown in the thread. I could not believe the resulting increase in performance and believe it or not improvement in fuel economy.

I have recently had fan issues with mine and over the week or so that the fan was not working, it did not appea rto effect the low down performance of the car at all. If it takes off at 30000 rpm and again at 40000 rpm the problem does not lay with the vis motors.

Have a look at the throttle cable, bet there is a bit of slack there.

Regards,

Dave.

sjc · 25th June 2011, 06:06

Cheers Dave, will have a look at that.

13th June 2011, 21:09	#1
sjc Posted a thing or two MG ZT-T 180 Sports +, 2007 completely restored XJ 4.2 LWB Sovereign,Noble M400,LR Discovery 3 Join Date: Dec 2009 Location: Little Baddow Posts: 1,315 Thanks: 65 Thanked 148 Times in 70 Posts	V6 loss of low down power. In the last couple of hundred miles, my car ( 2.5 V6 auto 46K miles)has suddenly felt sluggish at low revs. It happens in any gear, and is particularly frustrating when pulling away, or when cruising at low revs and it suddenly needs to cog down a gear when you increase speed a little. There is still a step iup n performance at around 3000 revs, so I'm not sure it's a VIS motor. Any other ideas ,it feels like it's missing 30 BHP or do? __________________ The 75... " It's lovely isn't it ? Makes you wonder why people are obsessed with modern rubbish". Tiff Needell

13th June 2011, 21:12	#3
Thomas This is my second home MG6 1.8T GT SE Join Date: Mar 2009 Location: Falkirk Posts: 9,510 Thanks: 106 Thanked 173 Times in 128 Posts	Moved to technical help forum. __________________ MG6 1.8 TCi in Artic White 1975 Land Rover Series 3

23rd June 2011, 07:35	#6
sjc Posted a thing or two MG ZT-T 180 Sports +, 2007 completely restored XJ 4.2 LWB Sovereign,Noble M400,LR Discovery 3 Join Date: Dec 2009 Location: Little Baddow Posts: 1,315 Thanks: 65 Thanked 148 Times in 70 Posts	Hi Lewis, have hada problem with the fan ( repalcement on it's way from Jules) and strangely since I've kept teh air-com off so as to not have the fans ( that have obviously been struggling, if working at all) kicking in the lethargy in the lowdown performance seems to have gone. When the fan is fitted will report back,but just wondered if it could be connected at all! __________________ The 75... " It's lovely isn't it ? Makes you wonder why people are obsessed with modern rubbish". Tiff Needell

24th June 2011, 21:00	#7
daveb57 Loves to post Mercedes Benz E 350 Coupe Peugeot 407 SW 1.9 HDI Join Date: Mar 2009 Location: Around jcn 26 of the M1 Posts: 483 Thanks: 74 Thanked 61 Times in 29 Posts	Hi mate, Just a thought , take a look at this thread from 'tother side'. http://forums.mg-rover.org/showthread.php?t=320933 If you have a bit of play in the accelerator pedal then do the simple mod that is shown in the thread. I could not believe the resulting increase in performance and believe it or not improvement in fuel economy. I have recently had fan issues with mine and over the week or so that the fan was not working, it did not appea rto effect the low down performance of the car at all. If it takes off at 30000 rpm and again at 40000 rpm the problem does not lay with the vis motors. Have a look at the throttle cable, bet there is a bit of slack there. Regards, Dave. Last edited by daveb57; 24th June 2011 at 21:51..

25th June 2011, 06:06	#8
sjc Posted a thing or two MG ZT-T 180 Sports +, 2007 completely restored XJ 4.2 LWB Sovereign,Noble M400,LR Discovery 3 Join Date: Dec 2009 Location: Little Baddow Posts: 1,315 Thanks: 65 Thanked 148 Times in 70 Posts	Cheers Dave, will have a look at that. __________________ The 75... " It's lovely isn't it ? Makes you wonder why people are obsessed with modern rubbish". Tiff Needell

13th June 2011, 21:11	#2
Rabett_Rover This is my second home Rover 75 Join Date: Nov 2006 Location: - Posts: 5,895 Thanks: 0 Thanked 7 Times in 7 Posts	Well if you want your VIS motors testing I am happy to do it