Parking brake

[Amir]

I park my LR3 on an inclined driveway with the front up. After driving up the driveway, when I apply park brake and release the foot brakes (with transmission being in Neutral) the truck rolls back a little (two to three inches, my guess) with some metal-to-metal rubbing noise and then stops. Is this normal behaviour.

Also, after pulling up my driveway, I usually shift transmisison to neutral, apply park brake, release the foot brake, let the truck roll back and settle, and then shift the transmission to "P". Is this the right procedure?

 

[madtownrover]

Just put it in park, then put on the parking brake (if you must).

Why leave it in neutral?

 

[roverman]

Leaving it in neutral would put zero stress on the transmission, especially if the parking brake allows the vehicle to roll back a few inches. Don't know that it's a big deal, but technically it would be better.
I don't have any experience with the rolling back so I can't help you there.

 

[Amir]

you can do a test of applying parking brakes on a slight grade (up or downhill) and see if the truck rolls a bit (with or without the trans in "P")

and madtownrover, i put the truck in neutral only to apply parking brakes and then i put the transmission to "P"

 

[Matt_Grim2]

I don't see how it would make a difference, I just put mine in park then put on the parking brake...

 

[Amir]

matt, i am talking about specifically for parking on a steep grade.

 

[Matt_Grim2]

matt, i am talking about specifically for parking on a steep grade.

Oh alright then i guess it would be done differently, putting it in neutral first would be best...

 

[texas911]

When you put it in Park, there is no stress on the tranny because all automatic transmissions are designed to lock on park.

 

[xcursion]

I forgot where I read it. But there was a thread before that discussed this. And yes, Amir, your procedure was what they said was best. That's how I do it.

As for the parking on an incline, just tried it in my truck and was pretty much what you said. When I pulled the parking brake, there is a slight sound of brakes engaging. Then the truck rolled back slightly. When I disengage the parking brake, same sound is heard again. I never heard this when engaging the brake on level ground.

As for the metal to metal sound, it's probably the brakes trying to grip.

 

[roverdawg]

Amir,

I've always heard the "slight sound of (parking) brake engaging", kind of a soft hydraulic/electronic sound coming from beneath the car when I pull the parking lever. I think it's normal. Have you had any squealing of your brakes at low speed and/or excessive brake dust on your rear wheels? I've had this in the past week or so and came across this bulletin (I believe it pertains to both the Range Rover Sport AND the LR3):

Technical Service Bulletin No.LS206-002
Summary :
A customer may report a concern of a squeal or clicking noise, or of excessive brake dust coming from one or both of the rear brake hubs.
Cause : The electronic parking brake, brake shoe retaining clip has become dislodged or has broken, leading to the above complaint.
Action : Should a customer express concern regarding the above, refer to the Service Procedure detailed in this bulletin.
Parts Required: Parking brake service kit SFS500012
Labour Time: Renew rear parking brake shoes 70.40.09 1.50 hours
Service Instruction
NOTE : In cases where a broken clip has been identified, to ensure a 'right first time' repair, both of the rear brakes should be serviced using the above service kit containing the latest design retaining clip and redesigned brake shoes.
NOTE : The service repair kit should always be used when replacing rear parking brake shoes during routine maintenance, to ensure that the latest specification parts are installed.
CAUTION : Ensure the new retaining clip is correctly positioned into the shoe locating slot.
Renew both rear parking brake shoes using the above parts kit, which includes the modified design shoes, retaining clip and return springs (illustration shows both left-hand and right-hand shoe arrangements and indicates the retaining clip locating slot). For additional information, refer to Global Technical Reference (GTR) Range Rover Sport Workshop Manual Section 206-05, Parking Brake and Actuation - Shoes (70.40.09).