Occasional sticking throttle
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Occasional sticking throttle
This evening I got stuck in road works, and out of nowhere, the throttle started to stick, at about 1500 or 2000rpm. If I blipped the throttle, sometimes it went back down to normal, other times just went straight back to 2000rpm, and on one memorable occasion, it dropped back down to normal, then crept slowly back up to 2000rpm. I got to my destination (football training), was there for an hour, then had the same journey home - but with no road works - and no throttle problem. Went out later for a short drive to collect a bike, again, no problem. This happened once or twice before, a long time ago, but then it was only once or twice then it settled back down to normal. This time it was continuous for fifteen minutes or so whilst I was moving in very slow traffic. I switched it off a few times, but each time it went back to sticking at about 2000rpm.
Any ideas? Frayed cable? Throttle return spring? Carbs spindles?
Any ideas? Frayed cable? Throttle return spring? Carbs spindles?
1990 2.1 DJ Syncro Caravelle/Westfalia conversion RHD
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Re: Occasional sticking throttle
This is bizarre. Mine did exactly as you describe yesterday and the day before. Seems to be when it's all thoroughly heat soaked. Was OK today.
2.1 injection SS
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2.1 injection SS
Sent from my SM-G930F using Tapatalk
1990 Atlantic 2.1 SS
1996 Lotus Esprit S4s
1996 Lotus Esprit S4s
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Re: Occasional sticking throttle
Er, no....I've still got the fuel injection, so please disregard me rambling on about carb spindles.kevtherev wrote:You got this 2.1 on a Pierburg?
rockthebus seems to have had a similar problem - yes, it was when the van was running hot. Coil need relocating?
1990 2.1 DJ Syncro Caravelle/Westfalia conversion RHD
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Re: Occasional sticking throttle
Since ambient temps are now cooler, mines been fine. Has yours?
Sent from my SM-G930F using Tapatalk
Sent from my SM-G930F using Tapatalk
1990 Atlantic 2.1 SS
1996 Lotus Esprit S4s
1996 Lotus Esprit S4s
Re: Occasional sticking throttle
When mine was doing this a couple of years back it turned out to be a frayed throttle cable. I would be able to lower the revs sometimes by hooking my foot under the pedal and lifting it up, sometimes though the pedal would pop off the linkage. When I got round to changing it I lubed up the whole linkage, no issues since
If a wall looks like a door, attach new hinges to it so you can use it.
89 1.9DG Autosleeper trident
89 1.9DG Autosleeper trident
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Re: Occasional sticking throttle
Hi,
I seem to get this when changing gear; I first thought I was accidentally keepin my foot on the throttle, but found the revs increased as I dipped the clutch to change gear, with the revs dropping as I moved into a different gear.
Regards
Graham
I seem to get this when changing gear; I first thought I was accidentally keepin my foot on the throttle, but found the revs increased as I dipped the clutch to change gear, with the revs dropping as I moved into a different gear.
Regards
Graham
Atlantic Hightop,1.6td
Saab 96 two stroke
Saab 99 GL
Saab 9-3
Saab 9-5 Aero Sportswagon
Saab 96 two stroke
Saab 99 GL
Saab 9-3
Saab 9-5 Aero Sportswagon
Re: Occasional sticking throttle
That sounds exactly how mine started misbehaving, check the throttle cable runs freely.....
If a wall looks like a door, attach new hinges to it so you can use it.
89 1.9DG Autosleeper trident
89 1.9DG Autosleeper trident
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Re: Occasional sticking throttle
A year on, and this weekend, it happened again. I haven't changed the cable since this time last year, mainly because I've had no problems with it, up until now. I don't do a huge amount of miles, just out and about around town a few days a week, but I have done a few 50-mile trips - all with no problems. The circumstances were the same as last time - I was queuing in slow moving traffic - so it's linked to engine temperature. It definitely wasn't over-heating, the fan kicked in as normal, but I still had the sticking throttle. And it doesn't stick wide open, but appears to stick at about 2000rpm.
Any ideas, or should I really think about changing the cable? Alternatively, is there any way I can lubricate it?
Any ideas, or should I really think about changing the cable? Alternatively, is there any way I can lubricate it?
1990 2.1 DJ Syncro Caravelle/Westfalia conversion RHD
- kevtherev
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Re: Occasional sticking throttle
Yes it can be lubed once off.
Pretty easy.
I think its right that you eliminate the small stuff first.
If it doesn't fix it then you can move on to more expensive things
Pretty easy.
I think its right that you eliminate the small stuff first.
If it doesn't fix it then you can move on to more expensive things
AGG 2.0L 8V. (Golf GTi MkIII)
- captain Byrne
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Re: Occasional sticking throttle
Got the same problem with my 2e3. All ok when cold but it starts sticking when warmed up. I've found that if I spray WD40 on the spindle return spring it temporarily solves the problem. It returns after a hundred miles or so. Needs a strip down & clean I guess.
1983 LHD Westfalia poptop 1.9 DG petrol.
Re: Occasional sticking throttle
captain Byrne wrote:Got the same problem with my 2e3. All ok when cold but it starts sticking when warmed up. I've found that if I spray WD40 on the spindle return spring it temporarily solves the problem. It returns after a hundred miles or so. Needs a strip down & clean I guess.
On the 2E3 there's a chance that this could be caused by the accelerator pump cam jamming behind the accelerator pump lever. If the gaskets below your carb are a bit thin, and/or if there's a lot of muck on top of the inlet manifold, the end of the pump lever can make contact with the manifold, and the cam can push past the lever and get jammed. If it's this, get in there with a screwdriver to clear some of the muck off the manifold where the lever makes contact.
"I'm a man of means, by no means....King of the Road!"
1983 Viking Xplorer, 2.1DJ
1983 Viking Xplorer, 2.1DJ
- captain Byrne
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Re: Occasional sticking throttle
Thanks CJH - will have a look at that.
1983 LHD Westfalia poptop 1.9 DG petrol.