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Sticky Throttle - M3W #595712
18/09/19 10:29 PM
18/09/19 10:29 PM
Joined: Mar 2019
Posts: 4
Sheffield, UK
B
Birchenall Offline OP
New to Talk Morgan
Birchenall  Offline OP
New to Talk Morgan
B

Joined: Mar 2019
Posts: 4
Sheffield, UK
Starting this morning and perhaps getting slightly worse throughout the day I have what I would describe as a sticky throttle.

I noticed this morning that I appeared to have cruse control after the car continued forward at around 30mph without my foot on the accelerator. This continued when I stopped at traffic lights with the engine on a high rev idle with the clutch pedal down.

A quick blip of the accelerator tends to sort it.

I would really like to sort this out myself as I'm a long way from a Morgan Dealer. (Sheffield) Where do I start!? A bit of lubricant on a cable somewhere I presume?

The car is around a year old with roughly 2k miles. I've not done much to it other than move the pedals back a few weeks after I got it last spring.

Re: Sticky Throttle - M3W [Re: Birchenall] #595718
18/09/19 11:01 PM
18/09/19 11:01 PM
Joined: Jan 2017
Posts: 547
Oxford
S
ShaunD Offline
Talk Morgan Regular
ShaunD  Offline
Talk Morgan Regular
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Joined: Jan 2017
Posts: 547
Oxford
I had the same problem. If I recall rightly, I think there was a spring involved and it had broken and needed replacing.

Re: Sticky Throttle - M3W [Re: Birchenall] #595722
18/09/19 11:26 PM
18/09/19 11:26 PM
Joined: Jun 2012
Posts: 1,148
United Kingdom, Lincolnshire
planenut Offline
Has a lot to Say!
planenut  Offline
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Joined: Jun 2012
Posts: 1,148
United Kingdom, Lincolnshire

A frayed throttle cable maybe, or lubrication if it is actually sticking? Also a faulty idle air control motor or wheel speed sensor will hold the revs higher than normal.

Re: Sticky Throttle - M3W [Re: ShaunD] #595736
19/09/19 07:43 AM
19/09/19 07:43 AM
Joined: May 2011
Posts: 1,012
Near Windsor Berkshire
R
Rog G Online content
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Rog G  Online Content
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Joined: May 2011
Posts: 1,012
Near Windsor Berkshire
Originally Posted by ShaunD
I had the same problem. If I recall rightly, I think there was a spring involved and it had broken and needed replacing.

Return spring on the throttle pedal.


2013 M3W
1971 4/4 2 Seater
1934 Sports
Re: Sticky Throttle - M3W [Re: Birchenall] #595749
19/09/19 09:09 AM
19/09/19 09:09 AM
Joined: Mar 2014
Posts: 877
Leicestershire, UK
Bunny Offline
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Bunny  Offline
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Joined: Mar 2014
Posts: 877
Leicestershire, UK
I've heard of throttle cables 'sticking' a couple of times recently. Does anyone lubricate the cable as part of their preventative maintenance?

Last edited by Bunny; 19/09/19 09:10 AM.

Andy
Re: Sticky Throttle - M3W [Re: Birchenall] #595762
19/09/19 11:10 AM
19/09/19 11:10 AM
Joined: Jul 2019
Posts: 44
Sweden
Swedewheeler Offline
Just Getting Started
Swedewheeler  Offline
Just Getting Started

Joined: Jul 2019
Posts: 44
Sweden
I had my throttle cable touching the cylinder and melted just enough to get the throttle to stick from time to time.....it was quite interesting to drive sometimes until I found the problem..:-)

Re: Sticky Throttle - M3W [Re: Birchenall] #595772
19/09/19 12:29 PM
19/09/19 12:29 PM
Joined: Jul 2013
Posts: 2,767
West Sussex, UK
Chris99 Offline
Talk Morgan Expert
Chris99  Offline
Talk Morgan Expert

Joined: Jul 2013
Posts: 2,767
West Sussex, UK
Bear in mind that if the throttle is stuck slightly open then the car won't start.


Red Leader drive
Re: Sticky Throttle - M3W [Re: Chris99] #595774
19/09/19 12:31 PM
19/09/19 12:31 PM
Joined: Feb 2019
Posts: 1,202
West of Seattle, USA
LightSpeed Offline
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LightSpeed  Offline
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West of Seattle, USA
Originally Posted by Chris99
Bear in mind that if the throttle is stuck slightly open then the car won't start.


That is an interesting and useful fact.


Stephen
2019 M3W

Re: Sticky Throttle - M3W [Re: Birchenall] #595777
19/09/19 12:46 PM
19/09/19 12:46 PM
Joined: Nov 2015
Posts: 1,323
Yorkshire
CooperMan Offline
Has a lot to Say!
CooperMan  Offline
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Joined: Nov 2015
Posts: 1,323
Yorkshire
Originally Posted by Birchenall
Starting this morning and perhaps getting slightly worse throughout the day I have what I would describe as a sticky throttle.

I noticed this morning that I appeared to have cruse control after the car continued forward at around 30mph without my foot on the accelerator. This continued when I stopped at traffic lights with the engine on a high rev idle with the clutch pedal down.

A quick blip of the accelerator tends to sort it.

I would really like to sort this out myself as I'm a long way from a Morgan Dealer. (Sheffield) Where do I start!? A bit of lubricant on a cable somewhere I presume?

The car is around a year old with roughly 2k miles. I've not done much to it other than move the pedals back a few weeks after I got it last spring.


Birchenall, if you want some help or an extra pair of hands, give me a shout (via PM) as I'm Mog tinkering this weekend & located in the 'Peoples Republic of South Yorks'


Jon M
Re: Sticky Throttle - M3W [Re: Rog G] #595865
19/09/19 09:35 PM
19/09/19 09:35 PM
Joined: Jan 2017
Posts: 547
Oxford
S
ShaunD Offline
Talk Morgan Regular
ShaunD  Offline
Talk Morgan Regular
S

Joined: Jan 2017
Posts: 547
Oxford
Originally Posted by Rog G
Originally Posted by ShaunD
I had the same problem. If I recall rightly, I think there was a spring involved and it had broken and needed replacing.

Return spring on the throttle pedal.

Thanks, Rog. Yes, that was it!

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