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Jun 14th, 2026
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Joined: Mar 2019
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OP
New to Talk Morgan
Joined: Mar 2019
Posts: 8 |
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.
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Joined: Jan 2017
Posts: 637
Talk Morgan Regular
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Talk Morgan Regular
Joined: Jan 2017
Posts: 637 |
I had the same problem. If I recall rightly, I think there was a spring involved and it had broken and needed replacing.
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Joined: Jun 2012
Posts: 2,242 Likes: 72
Talk Morgan Expert
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Talk Morgan Expert
Joined: Jun 2012
Posts: 2,242 Likes: 72 |
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.
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Joined: May 2011
Posts: 1,625 Likes: 25
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: May 2011
Posts: 1,625 Likes: 25 |
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.
2021 M3W
2013 M3W - Sold
1971 4/4 2 Seater
1934 Sports
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Joined: Mar 2014
Posts: 1,737 Likes: 55
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Mar 2014
Posts: 1,737 Likes: 55 |
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
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Joined: Jul 2019
Posts: 107
L - Learner Plates On
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L - Learner Plates On
Joined: Jul 2019
Posts: 107 |
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..:-)
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Joined: Jul 2013
Posts: 3,732 Likes: 79
Talk Morgan Addict
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Talk Morgan Addict
Joined: Jul 2013
Posts: 3,732 Likes: 79 |
Bear in mind that if the throttle is stuck slightly open then the car won't start.
Red Leader 
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Joined: Feb 2019
Posts: 3,857 Likes: 2
Talk Morgan Addict
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Talk Morgan Addict
Joined: Feb 2019
Posts: 3,857 Likes: 2 |
Bear in mind that if the throttle is stuck slightly open then the car won't start. That is an interesting and useful fact.
2019 M3W Sold and is now in Las Vegas enjoying the showgirls :-)
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Joined: Nov 2015
Posts: 8,671 Likes: 489
Just barreling along Needs to Get Out More!
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Just barreling along Needs to Get Out More!
Joined: Nov 2015
Posts: 8,671 Likes: 489 |
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
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Joined: Jan 2017
Posts: 637
Talk Morgan Regular
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Talk Morgan Regular
Joined: Jan 2017
Posts: 637 |
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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