absolutely crazy
#1
absolutely crazy
well. Following on from my mates GV with the engine cut on hard acceleration. it was really annoying me so I took her out the other day and absolutely nailed it down a long stretch.... practically to the red line on the revs counter and held it there for a good mile or so. she didn't cut out. she just sailed along. so I thought you bitch lol. so I poked her again and proper thrashed it up a hill and proper gave the engine a stretch.... well blow me... its perfect now. no cutting out... starts first turn of key even on freezing mornings... you can put your foot down and she just pulls like a goodn.. 3000 plus revs.. no cutting out. tick over smooth as a nut. what the hell did I do just by braying it for a couple of miles. .. I am thinking there was a fuel blockage or mucky filter and blasting it has cleared it although he is gonna go get the fuel filter changed. I thought it was the filter housing jobbie but obv not. any ideas anyone????
Nick
Nick
#2
#3
You have probably simply burnt off hard carbon deposits from injectors*. This is the only way of doing it short of removing the injectors and having them cleaned ultrasonically. There is no known substance that can dissolve carbon, so it's just a waste of time and money expecting some "magic fluid" in the fuel to do the job. Hence the italian tune-up can work.
Leedsman.
* Current diesel injectors have complicated spray patterns and many holes, six for instance is quite common. They are backed by an injection pressure of something in the order of 25,000lb/sq". Anything distorting the spray pattern, such as a chunk of hard carbon will have a major effect on performance.
Leedsman.
* Current diesel injectors have complicated spray patterns and many holes, six for instance is quite common. They are backed by an injection pressure of something in the order of 25,000lb/sq". Anything distorting the spray pattern, such as a chunk of hard carbon will have a major effect on performance.
#4
could the carbon deposits cause the engine cut on hard acceleration and surely this cant cause the low fuel rail pressure code I had. the low fuel rail pressure is why I was thinking fuel blockage somewhere or plugged up filter hence the italian tune up has shifted what ever was blocking it
#6
hey goggs. car has been running beautiful for nearly 5 days now. was stood for 2 days/nights and still perfect. In fact my mate says its like a new car. I drove it again today after 2 days stood and its perfect. I just cant believe a good thrashing has cleared it like it has. when you start it the starter motor barely spins twice and shes purring like a kitten. I hope others who may suffer similar can read this and try it them selves. all I can put this down to is an air lock in the fuel system somewhere that has been blown out. he usually drives like theres a bomb under the accelerator because he thought keeping the revs down would be good for the engine. he has changed his mind and is going to give her a blast once or twice a month. ... still gobsmacked that a simple thrashing has cured this three year long problem. marvelous I say
#9
My GV was running fine when I got it (like 40K km ago) but the engine was slightly rough when running idle.
I performed more or less the Italian tune up together with some injector cleaner and the idling was fine after that.
Since then I use my GV 50/50 for small towntrips and long highway trips.
In town I surely have a "sporty" driving style and on the highway I ride ~130km/h on average (where possible).
I can state with quite some certainty that the engine runs better, smoother and more powerful compared to when I just got the GV.
That does "proof" my theory: "never buy a car from old ladies"
I performed more or less the Italian tune up together with some injector cleaner and the idling was fine after that.
Since then I use my GV 50/50 for small towntrips and long highway trips.
In town I surely have a "sporty" driving style and on the highway I ride ~130km/h on average (where possible).
I can state with quite some certainty that the engine runs better, smoother and more powerful compared to when I just got the GV.
That does "proof" my theory: "never buy a car from old ladies"
#10
most of my driving is at 50mph (80kph) due to speed cameras all over our local main roads, but it is a speed that is neither a 4th gear or a 5th gear speed. if doing bang on the speed limit the car is ok but any slower by even 3mph I have to change down and sit at around 1900rpms, it's a good 8 mile stretch so really wish it was back up to a 60mph limit really lol