Throttle is Sticking on Disco II

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Throttle is Sticking on Disco II

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Throttle is Sticking on Disco II - 1/24/2008 5:29:32 PM

ClayinSA

Posts: 6
Joined: 1/24/2008
Status: offline

99 Disco II, 70K, well taken care of. Recently, from idle, trying to push the throttle pedal takes a lot of force to get it to 'dislodge' then it works fine until I pull up to a stop. Requires some force (not as much as first time when cold), but still enough to snap your head when you do it. When parked and under the hood, same amount of force is required when trying to manually operate the throttle. When cold, after you break it loose, sometimes it hangs at 2K-3K RPM's until a pump or two brings it back down.

Is this a Throttle body that needs to be replaced? cleaned? If so, any pitfalls to avoid when replacing? process on cleaning?

Thanks,
Clay

Post #: 1

RE: Throttle is Sticking on Disco II - 1/24/2008 6:14:40 PM

sideburns

Posts: 93
Joined: 8/22/2007
Status: offline

I would suggest a throttle body service,that should take care of it

(in reply to ClayinSA)

Post #: 2

RE: Throttle is Sticking on Disco II - 1/24/2008 6:15:28 PM

Disco Mike

Posts: 10490
Joined: 4/27/2006
Status: offline

Most likely the throttle cable, or cruise control cable is about to break.
Unhook them both from the t/body then see how the t/body opens.

_____________________________

Mike
Retired service manager. Member of the Solihull Society, NCLR club,past member of the SCLR club and Santa Barbara 4 Wheelers.
99 D2, 3" lift, lockers, H.D. axles, 4:11 gears, Custom front and rear bumpers, Warn winch, HID lights and an Engel 45.

(in reply to ClayinSA)

Post #: 3

RE: Throttle is Sticking on Disco II - 1/24/2008 6:16:04 PM

DiscoOn22s

Posts: 77
Joined: 12/8/2007
Status: offline

YEAH THAT SOUNDS LIKE THROTTLE BODY TO ME. TRY REMOVING YOUR INTAKE TUBE AND JUST TAKE A LOOK AT THE THROTTLE BODY. OBVIOUSLY WITH THE ENGINE TURNED OFF. LET US KNOW WHAT IT LOOKS LIKE. MAYBE POST A PICTURE IF THERES SOMETHING THAT LOOKS ODD.

(in reply to ClayinSA)

Post #: 4

RE: Throttle is Sticking on Disco II - 1/24/2008 6:25:19 PM

ClayinSA

Posts: 6
Joined: 1/24/2008
Status: offline

it's actually a 01, not 99, don't know if that makes a difference. I thought the cable also, except when turning the throttle by hand on the throttle body, i get the same resistance, thus eliminating the cable from the equation.
What is involved in serving a throttle body? I would prefer not to pay my local LR dealer a few hundred duckies if it is just spraying it down with some B12.

(in reply to ClayinSA)

Post #: 5

RE: Throttle is Sticking on Disco II - 1/24/2008 6:27:19 PM

WolfPack

Posts: 498
Joined: 1/3/2008
Status: offline

Probably just carbon buildup in the intake. Ever heard of a Seafoam treatment? That's what I used on my Blazer when I had the pedal-sticking problem, fixed it right up.

_____________________________

2001 Range Rover 4.6 SE - Coil Sprung
2000 Chevy Blazer 4x4 4.3L V6 - The Beast

(in reply to ClayinSA)

Post #: 6

RE: Throttle is Sticking on Disco II - 1/25/2008 5:57:05 AM

Disco Mike

Posts: 10490
Joined: 4/27/2006
Status: offline

When you turned the thrpttle plate by had, were the cables still hooked up, unhook them and try it?
Carbon build up will not cause it to stick as you are describing.

_____________________________

Mike
Retired service manager. Member of the Solihull Society, NCLR club,past member of the SCLR club and Santa Barbara 4 Wheelers.
99 D2, 3" lift, lockers, H.D. axles, 4:11 gears, Custom front and rear bumpers, Warn winch, HID lights and an Engel 45.

(in reply to WolfPack)

Post #: 7

RE: Throttle is Sticking on Disco II - 1/25/2008 8:33:29 AM

WolfPack

Posts: 498
Joined: 1/3/2008
Status: offline

Dang..maybe I'm going crazy..I thought it worked

_____________________________

2001 Range Rover 4.6 SE - Coil Sprung
2000 Chevy Blazer 4x4 4.3L V6 - The Beast

(in reply to Disco Mike)

Post #: 8

RE: Throttle is Sticking on Disco II - 1/25/2008 10:50:21 AM

dkeach

Posts: 70
Joined: 11/6/2007
Status: offline

Do as suggested earlier....remove the tube that runs between your air cleaner and throttle body. 2 clips on air cleaner end....hose clamp holding it to throttle body.
When you do this you will see a big "butterfly" in there. You will also see a bunch of brown crap on it and around the ID of this air inlet. spray carb cleaner up in there and use a lint free rag to wipe it off as best as you can. Important.....hold the butterfly open and clean the bottom edge of it as well. the butterfly is sticking in its home position due to this brown crap.
Call the crap whatever you want...it's crap that shouldn't be there. ( just did mine..same problem)
Done deal....Bob's your uncle.
Doug

< Message edited by dkeach -- 1/25/2008 10:52:02 AM >

(in reply to WolfPack)

Post #: 9

RE: Throttle is Sticking on Disco II - 1/25/2008 11:46:23 AM

Disco Mike

Posts: 10490
Joined: 4/27/2006
Status: offline

A fouled t/body won't stick to the extent he is describing, I think it is a cable still.

< Message edited by Disco Mike -- 1/25/2008 11:47:21 AM >

_____________________________

Mike
Retired service manager. Member of the Solihull Society, NCLR club,past member of the SCLR club and Santa Barbara 4 Wheelers.
99 D2, 3" lift, lockers, H.D. axles, 4:11 gears, Custom front and rear bumpers, Warn winch, HID lights and an Engel 45.

(in reply to dkeach)

Post #: 10