View Full Version : Car jammed at max power today!
I was on the A1 today in the outside lane when suddenly the engine revved to max and wouldn't slow down!
I dipped the clutch and pulled over to the hard shoulder with it still bouncing off the red line and switched it off and took and the key OUT and it STILL continued to bounce off the red line! No key, ignition off and still going!
After about 30 seconds of this, something let go in the engine and she started bellowing smoke so I jumped back in and stalled the engine by putting it into gear as the smoke was cholking the road.
very scary moment and I'm just glad that I was in the car and not the girlfriend. She wouldn't have known what to do and would have been stuck at full speed.
The engine is a gonner so I doubt I'll find out what caused it.
So of you have a peugeot 406 turbo diesel, ask peugeot why this happens! It may save your life!
Carl
oooo shiz mate, bet that shat you up a bit. glad ya didnt get hurt or anything, shame about the car tho, but you can get another one of thoes ( insurance cover it?)
chompy
dizzyblonde
22-03-09, 05:24 PM
gosh.......was it a bit of a brown trouser moment?:(
I'm not sure on this one but I think this can be caused by oil getting into the turbo. not sure of the ins and outs but it's bad.
glad u got to stop safely, I'm sure a garage will be able to tell u what happened.
TheStudent
22-03-09, 05:37 PM
French cars... bad news. German or Jap!
skeetly
22-03-09, 05:51 PM
Overfilled with engine oil............................
missyburd
22-03-09, 05:53 PM
Scary $hit, glad you're ok! :-(
Diesel engine runaway (http://en.wikipedia.org/wiki/Diesel_engine_runaway)
Quick thinking to shut it off, but not quite quick enough unfortunately.
EDIT: Quote for those that don't want to read the link...
A diesel engine will run on this oil mist, since engine oil has the same energy content as diesel fuel, and so the engine revolutions increase as this extra "fuel" is taken in. As a result of increased revolutions, more oil mist is forced out of the crankcase and into the engine, and a vicious cycle (http://en.wikipedia.org/wiki/Vicious_cycle) is created. The engine reaches a point where it is generating enough oil mist from its own crankcase oil that shutting off the fuel supply or cutting the ignition will not stop it and it will run faster and faster until it is destroyed.
svdemon
22-03-09, 05:59 PM
Exact same thing happened to me in a Royal Mail post van, funny thing was it only had 300 miles on the clock!!
gettin2dizzy
22-03-09, 06:00 PM
More common than you'd imagine. Wouldn't like to be on a train when that happens!
Thats the exact symptoms! looks like I'll be needing a new car then :(
missyburd
22-03-09, 06:02 PM
More common than you'd imagine. Wouldn't like to be on a train when that happens!
Why, would be cheaper than the Japanese bullet train :D
(Ok just kiddng, it would be most scary :rolleyes:)
Warthog
22-03-09, 06:02 PM
wow, that must have been scary! Well done for quick thinking and getting yourself or anyone else injured.
Extremely common, especially in renault laguna 1.9dci's
Turbo oil seals go which feed the engine with a constant fuel until the engine runs out and the engine goes pop.
The only hope you have is to stall the engine in 5th/6th gear......but even doing that will just reduce the bill.
They usually use alot of oil before it happens and the turbo will be making alot of whinning noises, usually very easy to spot.
Gene genie
22-03-09, 06:05 PM
very scary moment and I'm just glad that I was in the car and not the girlfriend.
:rolleyes::rolleyes:
Gene genie
22-03-09, 06:16 PM
glad your okay mate.
Exact same thing happend to me a couple of years back in a company Pug 306 turbo diesel.
Didn't know what to do at the time, pulled over, got out and waited for it to go bang. Wasn't until after I thought about stalling it.
markryker
22-03-09, 06:33 PM
I'm not sure on this one but I think this can be caused by oil getting into the turbo. not sure of the ins and outs but it's bad.
glad u got to stop safely, I'm sure a garage will be able to tell u what happened.
Same thing happened to a friend of mine, oil in turbo, middle lane M56 by time he had got to the hard shoulder it was a new engine job. Glad your ok.
BanditPat
22-03-09, 06:46 PM
Seen it happen to a rover 200, quite funny to see. Especially when some one doesent think of stalling it
Gene genie
22-03-09, 06:47 PM
so i guess turbo's are to be avoided at all costs then.
i never realised it was such a common problem.
Gutted. If the ignition is cut what ignites the oil mist? Pure temperature?
She wouldn't have known what to do and would have been stuck at full speed.
If you seriously mean that maybe its time to get her some extra lessons or take her off the road!
skeetly
22-03-09, 07:28 PM
what ignites the oil mist?
Compression. Diesel engine innit..
Alpinestarhero
22-03-09, 07:32 PM
. stuff .
Hence why stopping the engine didnt stop the engine running
Miles; diesal engines don't have spark plugs like petrol engines, since the diesal (or whatever else is in there like...engine oil, or chip fat) self-combust's. There are, however, glow-plugs to heat the combustion chambers prior to engine start-up. Diesal engines have relativly high compression ratios in comparison to a petrol engine :D
skeetly
22-03-09, 07:33 PM
so i guess turbo's are to be avoided at all costs then.
i never realised it was such a common problem.
Doesnt have to be anything wrong with the engine and it doesnt have to be a turbo. Just put too much oil in :)
Alpinestarhero
22-03-09, 07:34 PM
I thought most diesal engines are now turbo-assisted?
punyXpress
22-03-09, 07:42 PM
Pal worked for a well-known diesel engine manufacturer near Peterborough.
Oil refineries had problems with runaways & he was sent to sort it. ( not the place for a virtual grenade ). They weren't turbo & not sure what was done to fix it. The atmosphere in some areas of those places was enough to support combustion.
skeetly
22-03-09, 07:43 PM
Mostly I guess but I have a couple that arent :)
And as I am very unyoung I can remember diesel over runs in non turbo diesels so I include this information for completeness and so that no one labours under the misunderstanding that their non turbo diesel might be immune from over run destruction :)
JohnMcL7
22-03-09, 07:45 PM
I had this happen on a Rover 1.1S petrol (definitely not turbocharged) when in a queue of traffic, just put the clutch in and out until I reached a layby - the performance of the car was pretty poor so it wasn't much work to deal with it. After powering it down I waited a few minutes then headed onwards with no further issues.
John
Did this happen when going past a horse by any chance?
:D
Mostly I guess but I have a couple that arent :)
And as I am very unyoung I can remember diesel over runs in non turbo diesels so I include this information for completeness and so that no one labours under the misunderstanding that their non turbo diesel might be immune from over run destruction :)
Non turbo's do it when the piston seals are shot.
skeetly
22-03-09, 10:52 PM
They dont have to be shot.
Just over fill the thing :)
punyXpress
22-03-09, 11:34 PM
Hey Berlin - bet you wish you'd used the bike!
Bu99er - he knows where I live!
vBulletin® , Copyright ©2000-2025, Jelsoft Enterprises Ltd.