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Shuddering and cutting out when under 1/2 tank!
Posted: Sun Aug 19, 2018 4:03 pm
by Sammo
Afternoon,
My first post here and it's a question. I'm looking to buy my first Scirocco but the one I'm looking at has been sat for a few years and only recently back up and running with MOT etc. The guy has told me that when the fuel gets below 1/2 tank the car will struggle to run and then cut out. Above 1/2 tank and it's fine. Any ideas what might be causing this? The car is cheap enough that I can spend some money sorting this fault but I don't want to open a can of worms with it!
Cheers,
Sammo
Re: Shuddering and cutting out when under 1/2 tank!
Posted: Mon Aug 20, 2018 6:37 am
by BlackGTX
Possibly holes in the filler neck so the tank is at a lower pressure than normal
Re: Shuddering and cutting out when under 1/2 tank!
Posted: Mon Aug 20, 2018 8:55 am
by essextom
Sammo wrote: ↑Sun Aug 19, 2018 4:03 pm
Afternoon,
My first post here and it's a question. I'm looking to buy my first Scirocco but the one I'm looking at has been sat for a few years and only recently back up and running with MOT etc. The guy has told me that when the fuel gets below 1/2 tank the car will struggle to run and then cut out. Above 1/2 tank and it's fine. Any ideas what might be causing this? The car is cheap enough that I can spend some money sorting this fault but I don't want to open a can of worms with it!
Cheers,
Sammo
Id say its more likely to be the fuel sender/ pick up in the tank that has a crack/leak so when fuel falls below it only sucks air in.
Re: Shuddering and cutting out when under 1/2 tank!
Posted: Mon Aug 20, 2018 11:41 am
by mr.brown
Each answer above is valid - depending on whether the car in question is injection or carburettor. What year/model/engine is it?
Re: Shuddering and cutting out when under 1/2 tank!
Posted: Mon Aug 20, 2018 11:03 pm
by mark1gls
^^^^ what Mr Brown said... a little more info will help as the cars do differ from what year it is and type of fuel intake the engine has.
Re: Shuddering and cutting out when under 1/2 tank!
Posted: Tue Aug 28, 2018 5:38 pm
by Eagle1
When I got mine I dropped the rear axle, gives you a chance to do all the brake pipes, put the flexy ones on first. I also cleaned the underside of the car and waxoyled it. Painted everything in sight and renewed everything as well. Most importantly the tank came out and I now possess what I call "Dip", (see Roger Rabbit if you're not sure), or time expired fuel. All the fuel lines were replaced along with a new filter.