Viz motors

tworodrod · 31st August 2020, 07:43

Hi all could someone please tell me the symptoms of failing vi's motors as I was on the motorway yesterday and my 75 2.0 ltr auto just did not want to accelerate it wasn't being responsive to the accelerator at all any suggestions many thanks Rod

SD1too · 31st August 2020, 08:05

Put simply Rod, poor performance is the result of a VIS system fault. It feels as if you don't have 150 bhp under the bonnet.

All you need is a screwdriver to check the 'balance' actuator and flap. These have the greatest effect upon everyday driving.

A blocked crankcase breather also has a major effect upon the response of a KV6 auto.

Simon

tworodrod · 31st August 2020, 08:58

Thanks very much for that it's just when pressing pedal it just does not respond anyway I will take your suggestion and give those a look at many thanks

SD1too · 31st August 2020, 10:32

Quote:

Originally Posted by tworodrod

... it's just when pressing pedal it just does not respond ...

Do you mean that the car doesn't accelerate at all?

Can you give a bit more detail please Rod. At what speed does this occur? Does the car behave normally at non-motorway speeds?

Simon

stocktake · 31st August 2020, 12:13

1st thing I would check is the accelerator cable for play and take up any slack

tworodrod · 31st August 2020, 13:40

Hi I was doing about 70 mph but it did not want to accelerate it only crept up slowly I checked engine breather earlier that was clear not checked vi's motors yet but I have just been out in it and it seemed fine around town although it sounded a little bit revy I will have a longer look. Later in the week many thanks Simon

SD1too · 31st August 2020, 13:54

Thanks for your reply Rod.

How many miles has the car done and when was the engine last serviced? Do you do your own maintenance?

Simon

31st August 2020, 07:43	#1
tworodrod Newbie Rover 75 saloon Join Date: May 2019 Location: tyldesley Posts: 23 Thanks: 17 Thanked 0 Times in 0 Posts	Viz motors Hi all could someone please tell me the symptoms of failing vi's motors as I was on the motorway yesterday and my 75 2.0 ltr auto just did not want to accelerate it wasn't being responsive to the accelerator at all any suggestions many thanks Rod

31st August 2020, 08:05	#2
SD1too Doesn't do things by halves Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007 Location: Former Middlesex Posts: 20,344 Thanks: 1,587 Thanked 3,749 Times in 3,181 Posts	Put simply Rod, poor performance is the result of a VIS system fault. It feels as if you don't have 150 bhp under the bonnet. All you need is a screwdriver to check the 'balance' actuator and flap. These have the greatest effect upon everyday driving. A blocked crankcase breather also has a major effect upon the response of a KV6 auto. Simon __________________ "Whatever is rightly done, however humble, is noble." Sir Henry Royce.

31st August 2020, 12:13	#5
stocktake Vis Whiz Rover 75 2.5 auto Saloon Join Date: Jun 2007 Location: LEEDS Posts: 20,586 Thanks: 2,057 Thanked 3,056 Times in 1,621 Posts	1st thing I would check is the accelerator cable for play and take up any slack __________________ Dave... Lost a few stones and a Gall Bladder and part of a bile duct and all of my dignity in the suppository incident

31st August 2020, 13:54	#7
SD1too Doesn't do things by halves Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007 Location: Former Middlesex Posts: 20,344 Thanks: 1,587 Thanked 3,749 Times in 3,181 Posts	Thanks for your reply Rod. How many miles has the car done and when was the engine last serviced? Do you do your own maintenance? Simon __________________ "Whatever is rightly done, however humble, is noble." Sir Henry Royce.

31st August 2020, 08:58	#3
tworodrod Newbie Rover 75 saloon Join Date: May 2019 Location: tyldesley Posts: 23 Thanks: 17 Thanked 0 Times in 0 Posts	Thanks very much for that it's just when pressing pedal it just does not respond anyway I will take your suggestion and give those a look at many thanks

31st August 2020, 13:40	#6
tworodrod Newbie Rover 75 saloon Join Date: May 2019 Location: tyldesley Posts: 23 Thanks: 17 Thanked 0 Times in 0 Posts	Hi I was doing about 70 mph but it did not want to accelerate it only crept up slowly I checked engine breather earlier that was clear not checked vi's motors yet but I have just been out in it and it seemed fine around town although it sounded a little bit revy I will have a longer look. Later in the week many thanks Simon