Tight and squeaky pedal

[bernhund]

Strange. Went out in the car today and all normal. Went into Sainsburys (for ham egg and chips!) and when I drove away the accelerator pedal felt tight under foot and squeaked. It doesn't stick in position, but is tricky to use smoothly. So what's happened there then?

[AMG Merc]

Mat moved and messing with the travel?

[wessexrfc]

Be careful, this could be the throttle cable starting the fray within the sheath. I would look to replace cable once you've had a play to determine. Mine was doing this once it got hot.

[bernhund]

wessexrfc said:

Be careful, this could be the throttle cable starting the fray within the sheath. I would look to replace cable once you've had a play to determine. Mine was doing this once it got hot.

The mat is fine, as I looked at that first. I did have the tunnel cooling mod but is that irrelevant to the fraying?

[wessexrfc]

bernhund said:

wessexrfc said:

Be careful, this could be the throttle cable starting the fray within the sheath. I would look to replace cable once you've had a play to determine. Mine was doing this once it got hot.

The mat is fine, as I looked at that first. I did have the tunnel cooling mod but is that irrelevant to the fraying?

Yes, I have the same, heat seems to affect the cable and it starts to fray. On circuit I had a hand with some penetrating oil that we squirted into the sheath from the pedal end, that worked for a while and then would go stiff again, I didn't get the squeak though. It might be worth a go!!

[bernhund]

wessexrfc said:

bernhund said:

wessexrfc said:

Be careful, this could be the throttle cable starting the fray within the sheath. I would look to replace cable once you've had a play to determine. Mine was doing this once it got hot.

The mat is fine, as I looked at that first. I did have the tunnel cooling mod but is that irrelevant to the fraying?

Yes, I have the same, heat seems to affect the cable and it starts to fray. On circuit I had a hand with some penetrating oil that we squirted into the sheath from the pedal end, that worked for a while and then would go stiff again, I didn't get the squeak though. It might be worth a go!!

OK, thanks. I'll have a closer look over the weekend. I don't want any of that sticking cable nonsense on a motorway!

[AMG Merc]

That's a point: Where does your throttle cable run - over the forward turbo or along the top of the top offside chassis rail?

[bernhund]

AMG Merc said:

That's a point: Where does your throttle cable run - over the forward turbo or along the top of the top offside chassis rail?

That I don't know. I've not owned this one for long and really haven't had a good look around it yet. I think I might be calling Matt & Dave!

[Jarcy]

I experienced my throttle cable sticking whilst on track. Scary when you're not expecting the throttle to stick open!
The cable goes down the tunnel and out over the front turbo - that's where the heat problem lies.
On inspection you couldn't see much visible damage to my old cable, but it was enough to make it stick.

It's a common problem. The solution is to replace the cable and route it down the driver's side side-pod, rather than through the tunnel. It reaches - just.

Having said all that, I wouldn't associate the problem with a squeaky peddle, as the damage is done in the engine-bay.