Kv6 Cruise Control

DEVYL · 27th April 2017, 22:24

Hello, I have a problem with the cruise control. I press the buton under the climate control, it goes green then I press SET and the yellow light in the instrument panel comes ON but the car is decelerating. My car is a 2003 r75 2.5 v6 auto. Where should I start looking for a problem?

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Phill_190 · 27th April 2017, 23:06

Does the orange light stay on or go out?

DEVYL · 28th April 2017, 04:26

It stays on, like it's operational

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Phill_190 · 28th April 2017, 06:15

Its probably a wheel bearing sensor thinks its passenger front thàt does speed but im sure someone will confirm or say its not soon!

SD1too · 28th April 2017, 08:35

Quote:

Originally Posted by DEVYL

Where should I start looking for a problem?

Well, the electrical side seems to be activating Alexander so I would inspect carefully the vacuum lines between the pump assembly and the actuator.

Simon

john adam · 28th April 2017, 22:18

I had a similar problem which turned out to be caused by the vacuum actuator which had become detached from the control lever. fortunately a very easy fix.

DEVYL · 29th April 2017, 04:01

I did some investigation and found the following. Behind the engine,in the left corner, that is the cruise control actuator right? There is a hose with a cable inside that goes to the accelerator body ( I think ) and that hose is cracked and moving all over the place. I will take a photo today. Could that be a problem?

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SD1too · 29th April 2017, 08:46

Quote:

Originally Posted by DEVYL

I will take a photo today. Could that be a problem?

It could be. Looking out for your photo.

Simon

DEVYL · 29th April 2017, 09:22

Quote:

Originally Posted by SD1too

It could be. Looking out for your photo.

Simon

http://cloud.tapatalk.com/s/59045b51...429_121742.mp4

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SD1too · 29th April 2017, 20:44

That looks like traction control Alexander.

The cruise control actuator is just in front of the throttle body on the engine side. It looks like a distributor vacuum advance unit with an operating linkage attached.

If you follow the vacuum tube from this across the top of the inlet manifold chamber it will descend towards the cruise control pump which is below the unit which you have photographed.

Simon

27th April 2017, 22:24	#1
DEVYL Loves to post Rover 75 2.5 V6 Auto Connoiseur SE Join Date: Apr 2010 Location: Bucharest Posts: 332 Thanks: 23 Thanked 54 Times in 36 Posts	Kv6 Cruise Control Hello, I have a problem with the cruise control. I press the buton under the climate control, it goes green then I press SET and the yellow light in the instrument panel comes ON but the car is decelerating. My car is a 2003 r75 2.5 v6 auto. Where should I start looking for a problem? Sent from my SM-N920I using Tapatalk __________________ The only reason I can't own a ZT 260 is the registration tax in Romania of over 12.000 euros. Looking for a LHD MG ZT 260 on UK plates!

28th April 2017, 04:26	#3
DEVYL Loves to post Rover 75 2.5 V6 Auto Connoiseur SE Join Date: Apr 2010 Location: Bucharest Posts: 332 Thanks: 23 Thanked 54 Times in 36 Posts	It stays on, like it's operational Sent from my SM-N920I using Tapatalk __________________ The only reason I can't own a ZT 260 is the registration tax in Romania of over 12.000 euros. Looking for a LHD MG ZT 260 on UK plates!

29th April 2017, 04:01	#7
DEVYL Loves to post Rover 75 2.5 V6 Auto Connoiseur SE Join Date: Apr 2010 Location: Bucharest Posts: 332 Thanks: 23 Thanked 54 Times in 36 Posts	I did some investigation and found the following. Behind the engine,in the left corner, that is the cruise control actuator right? There is a hose with a cable inside that goes to the accelerator body ( I think ) and that hose is cracked and moving all over the place. I will take a photo today. Could that be a problem? Sent from my SM-N920I using Tapatalk __________________ The only reason I can't own a ZT 260 is the registration tax in Romania of over 12.000 euros. Looking for a LHD MG ZT 260 on UK plates!

29th April 2017, 20:44	#10
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: 20,345 Thanks: 1,587 Thanked 3,749 Times in 3,181 Posts	That looks like traction control Alexander. The cruise control actuator is just in front of the throttle body on the engine side. It looks like a distributor vacuum advance unit with an operating linkage attached. If you follow the vacuum tube from this across the top of the inlet manifold chamber it will descend towards the cruise control pump which is below the unit which you have photographed. Simon __________________ "Whatever is rightly done, however humble, is noble." Sir Henry Royce.

27th April 2017, 23:06	#2
Phill_190 Gets stuck in MG ZT Saloon Join Date: Apr 2016 Location: Kent Posts: 653 Thanks: 36 Thanked 97 Times in 74 Posts	Does the orange light stay on or go out?

28th April 2017, 06:15	#4
Phill_190 Gets stuck in MG ZT Saloon Join Date: Apr 2016 Location: Kent Posts: 653 Thanks: 36 Thanked 97 Times in 74 Posts	Its probably a wheel bearing sensor thinks its passenger front thàt does speed but im sure someone will confirm or say its not soon!

28th April 2017, 22:18	#6
john adam Avid contributor 1999 Rover 75 2.5 Connoisseur saloon Join Date: May 2007 Location: Carterton, NZ Posts: 106 Thanks: 18 Thanked 3 Times in 3 Posts	I had a similar problem which turned out to be caused by the vacuum actuator which had become detached from the control lever. fortunately a very easy fix.