The mystery goes on !!

Sadielou · 06-11-2007, 16:19

Just a nother question for you guys and gals following on from my previous thread :
Just An Update ! I;m Not Crazy..... well the car touch wood is running ok until..... the second the petrol (any kind) hits quarter of a tank and limp mode begins and the asr and epc light come on fill it up with fuel again and its fine so any suggestions ?? its booked in with skoda again they love me lol all this money on scanning i could buy a new bloomin car at this rate !! this car is doomed i'm sure lol xsadieloux

KenONeill · 06-11-2007, 16:58

That has just got to be some sort of a fuel pickup problem. I think it's most likely that the bottom of the tank has some sediment in it that's blocking a mesh filter over the pickup point.

This isn't a pop but a serious question. Did this start happening soon after the illustrated prang?

**VRStu** · 06-11-2007, 17:01

Could be the in tank fuel pump or as you say Ken dirt in the tank.

KenONeill · 06-11-2007, 17:17

Why, in the name of sanity, is there a pump in the tank!?

Sadielou · 06-11-2007, 17:27

hi the car smashed up in my pic is my old one that i wrote off ooppss ! the one i have now i a black magic 52 plate is there anyway of draining the tank to clear/clean it ?? or actually finding out if it is the pump ?? xsadieloux

**VRStu** · 06-11-2007, 17:33

My mistake - It doesn't look like there is one in the tank.

**VRStu** · 06-11-2007, 17:35

Attatched is an image showing the tank and an opening in the top which I suspect would be under the rear seat.

KenONeill · 06-11-2007, 17:37

Stu, I didn't disbelieve you; it just struck me as a piece of stupid design, like, say, a plastic water pump impellor.

SadieLou, if there's not a fuel pump in the tank, it's quite reasonably possible to drain and remove the tank, slosh some special cleaners around in it, and reinstall. Well, unless the problem is peeling paint inside the tank (it's been known, but usually on classics IME), when it's time for a new tank.

Sadielou · 06-11-2007, 17:38

thanx for that ,omg ! think im just gonna cry instead lol ! so what would your money be on then - crap/sediment in the tank ?? or ........???

Sadielou · 06-11-2007, 17:40

Thanx guys will throw that idea at skoda tomoz who never seem to actaually offer any 'real' suggestions just hope it is something as simple as that. someone has suggested the egr valve ??? coils (ive replaced) and plugs ?? whats yr thoughts on those ? xx

KenONeill · 06-11-2007, 17:48

Frankly, I'd take something like that to the local garage down the road, and save a small fortune on labour costs.

As to the other things, notice how fast I went from "low fuel" to "fuel pickup problem". I was a bit confused until you added that info, at which point it looked like something I'd seen before.

Tom_vRS · 06-11-2007, 17:50

I think there is a lift pump in the tank... yours wouldn't be the first one to fail.

Sadielou · 06-11-2007, 17:52

Quote:

Originally Posted by KenONeill

Frankly, I'd take something like that to the local garage down the road, and save a small fortune on labour costs.

As to the other things, notice how fast I went from "low fuel" to "fuel pickup problem". I was a bit confused until you added that info, at which point it looked like something I'd seen before.

so your suggesting what sorry ??? ..xx

i understood the take it to a 'normal garage bit' lol x

simonlb · 06-11-2007, 18:19

Quote:

Originally Posted by KenONeill

Why, in the name of sanity, is there a pump in the tank!?

Common fitment on a lot of cars with fuel injection for years - Ford's and Vauxhall's for a start.

kenny rsell · 06-11-2007, 18:31

Quote:

Originally Posted by KenONeill

Why, in the name of sanity, is there a pump in the tank!?

Cause thats where it is,think youve been driving diesels to long lol.

fordfan · 07-11-2007, 08:38

A friend of mine used to have a car thet would run out of fuel when it got to half a tank, it turned out that someone had connected the fuel feed and return pipes the wrong way, don't think this is possible on a modern car but might be worth a check.

KenONeill · 07-11-2007, 09:35

Quote:

Originally Posted by Sadielou

so your suggesting what sorry ??? ..xx

i understood the take it to a 'normal garage bit' lol x

I meant that I wasn't sure what the problem was, until you said it only happened on low fuel, at which point it became clear that the symptoms had to be fuel starvation, which with 2 or 3 gallons in the tank leads naturally to the fuel pump or a blocked pick-up. It's sort of basic diagnostics really.

Sadielou · 07-11-2007, 09:51

so that means we are possibly looking at maybe 2 things then ; fuel pick up (sediment in tank causing blockage) or fuel pump as apposed to anything ecu/sensor based the coils etc skoda have seemed pretty useless now compared to you guys offering these suggestions they have never even so much as floated over these possibilties xxsadielouxx so what would you try first now then ??

mbames · 07-11-2007, 12:22

Quote:

Originally Posted by kenny rsell

Cause thats where it is,think youve been driving diesels to long lol.

My 306 HDi has a low pressure pump in the tank. It failed my brother was driving the car near to Birmingham. Breakdown man had no idea, but when my brother phoned me later I suggested that pump within seconds when he explained that the car would not start (and after I asked if it still had fuel in it....!)

KenONeill · 07-11-2007, 12:23

Did it start running rough on low fuel after being filled up at an unfamiliar (place and brand) outlet? My Dad had a similar problem with one of his cars, and the cause must have been a fill at a "Q8" station in North Yorkshire that put a load of sediment in the tank.

If so, I'd suspect the sediment being more likely. If not, I have no idea which is more likely, or easier to test.

Sadielou · 07-11-2007, 12:54

Quote:

Originally Posted by KenONeill

Did it start running rough on low fuel after being filled up at an unfamiliar (place and brand) outlet? My Dad had a similar problem with one of his cars, and the cause must have been a fill at a "Q8" station in North Yorkshire that put a load of sediment in the tank.

If so, I'd suspect the sediment being more likely. If not, I have no idea which is more likely, or easier to test.

thats exactly when it started i always use tescos fuel but they had a tanker in and only 4 pumps working so i went to shell and my problems started there after i have had the car scanned to day and it is coming up code ' 17579 - throttle actuator potenometer sign 2
any one know what this is ?? xxsadielouxx

06-11-2007, 16:19	#1
Sadielou Briskodian Join Date: Sep 2007 Posts: 91 Thanks: 6 Thanked 0 Times in 0 Posts	The mystery goes on !! Just a nother question for you guys and gals following on from my previous thread : Just An Update ! I;m Not Crazy..... well the car touch wood is running ok until..... the second the petrol (any kind) hits quarter of a tank and limp mode begins and the asr and epc light come on fill it up with fuel again and its fine so any suggestions ?? its booked in with skoda again they love me lol all this money on scanning i could buy a new bloomin car at this rate !! this car is doomed i'm sure lol xsadieloux

06-11-2007, 16:58	#2
KenONeill Briskodian Join Date: May 2006 Location: Normally somewhere in Scotland! Posts: 11,043 Thanks: 63 Thanked 548 Times in 536 Posts	Re: The mystery goes on !! That has just got to be some sort of a fuel pickup problem. I think it's most likely that the bottom of the tank has some sediment in it that's blocking a mesh filter over the pickup point. This isn't a pop but a serious question. Did this start happening soon after the illustrated prang?

06-11-2007, 17:01	#3
VRStu Txt Spk Police Join Date: Dec 2004 Location: Hampshire Posts: 20,763 Thanks: 142 Thanked 987 Times in 884 Posts	Re: The mystery goes on !! Could be the in tank fuel pump or as you say Ken dirt in the tank. __________________ Stu Stu's Websites - http://www.fabia-vrs.com & http://www.octavia-vrs.com Stu's Car - 2008 Audi S3 - Ibis White, Black Optics Pack, Privacy Glass, Auto Bi Xenon Headlights, Rain Sensing Wipers, Bose Sound System, Ipod Prep, GSM Phone Prep, Flat Bottom Multi Function Steering Wheel, Electric Folding Mirrors, Acoustic Parking, Cruise Control, Interior Light Pack, Non Smokers Pack. SWMBO's Car - 2008 Seat LEON TDi Stylance, Black Magic, Sports Pack, Rear Parking Sensors. Something for Weekend - A Patio

06-11-2007, 17:17	#4
KenONeill Briskodian Join Date: May 2006 Location: Normally somewhere in Scotland! Posts: 11,043 Thanks: 63 Thanked 548 Times in 536 Posts	Re: The mystery goes on !! Why, in the name of sanity, is there a pump in the tank!?

06-11-2007, 17:27	#5
Sadielou Briskodian Join Date: Sep 2007 Posts: 91 Thanks: 6 Thanked 0 Times in 0 Posts	Re: The mystery goes on !! hi the car smashed up in my pic is my old one that i wrote off ooppss ! the one i have now i a black magic 52 plate is there anyway of draining the tank to clear/clean it ?? or actually finding out if it is the pump ?? xsadieloux

06-11-2007, 17:33	#6
VRStu Txt Spk Police Join Date: Dec 2004 Location: Hampshire Posts: 20,763 Thanks: 142 Thanked 987 Times in 884 Posts	Re: The mystery goes on !! My mistake - It doesn't look like there is one in the tank. __________________ Stu Stu's Websites - http://www.fabia-vrs.com & http://www.octavia-vrs.com Stu's Car - 2008 Audi S3 - Ibis White, Black Optics Pack, Privacy Glass, Auto Bi Xenon Headlights, Rain Sensing Wipers, Bose Sound System, Ipod Prep, GSM Phone Prep, Flat Bottom Multi Function Steering Wheel, Electric Folding Mirrors, Acoustic Parking, Cruise Control, Interior Light Pack, Non Smokers Pack. SWMBO's Car - 2008 Seat LEON TDi Stylance, Black Magic, Sports Pack, Rear Parking Sensors. Something for Weekend - A Patio

06-11-2007, 17:37	#8
KenONeill Briskodian Join Date: May 2006 Location: Normally somewhere in Scotland! Posts: 11,043 Thanks: 63 Thanked 548 Times in 536 Posts	Re: The mystery goes on !! Stu, I didn't disbelieve you; it just struck me as a piece of stupid design, like, say, a plastic water pump impellor. SadieLou, if there's not a fuel pump in the tank, it's quite reasonably possible to drain and remove the tank, slosh some special cleaners around in it, and reinstall. Well, unless the problem is peeling paint inside the tank (it's been known, but usually on classics IME), when it's time for a new tank.

06-11-2007, 17:38	#9
Sadielou Briskodian Join Date: Sep 2007 Posts: 91 Thanks: 6 Thanked 0 Times in 0 Posts	Re: The mystery goes on !! thanx for that ,omg ! think im just gonna cry instead lol ! so what would your money be on then - crap/sediment in the tank ?? or ........???

06-11-2007, 17:40	#10
Sadielou Briskodian Join Date: Sep 2007 Posts: 91 Thanks: 6 Thanked 0 Times in 0 Posts	Re: The mystery goes on !! Thanx guys will throw that idea at skoda tomoz who never seem to actaually offer any 'real' suggestions just hope it is something as simple as that. someone has suggested the egr valve ??? coils (ive replaced) and plugs ?? whats yr thoughts on those ? xx

06-11-2007, 17:48	#11
KenONeill Briskodian Join Date: May 2006 Location: Normally somewhere in Scotland! Posts: 11,043 Thanks: 63 Thanked 548 Times in 536 Posts	Re: The mystery goes on !! Frankly, I'd take something like that to the local garage down the road, and save a small fortune on labour costs. As to the other things, notice how fast I went from "low fuel" to "fuel pickup problem". I was a bit confused until you added that info, at which point it looked like something I'd seen before.

06-11-2007, 17:50	#12
Tom_vRS Briskodaholic Join Date: Dec 2004 Location: Fenland, Cambridgeshire Posts: 11,529 Thanks: 675 Thanked 422 Times in 302 Posts	Re: The mystery goes on !! I think there is a lift pump in the tank... yours wouldn't be the first one to fail. __________________ 97/R BMW 328i in Boston Green.

07-11-2007, 08:38	#16
fordfan ECUless Join Date: Mar 2005 Posts: 2,042 Thanks: 30 Thanked 241 Times in 210 Posts	Re: The mystery goes on !! A friend of mine used to have a car thet would run out of fuel when it got to half a tank, it turned out that someone had connected the fuel feed and return pipes the wrong way, don't think this is possible on a modern car but might be worth a check.

07-11-2007, 09:51	#18
Sadielou Briskodian Join Date: Sep 2007 Posts: 91 Thanks: 6 Thanked 0 Times in 0 Posts	Re: The mystery goes on !! so that means we are possibly looking at maybe 2 things then ; fuel pick up (sediment in tank causing blockage) or fuel pump as apposed to anything ecu/sensor based the coils etc skoda have seemed pretty useless now compared to you guys offering these suggestions they have never even so much as floated over these possibilties xxsadielouxx so what would you try first now then ??

07-11-2007, 12:23	#20
KenONeill Briskodian Join Date: May 2006 Location: Normally somewhere in Scotland! Posts: 11,043 Thanks: 63 Thanked 548 Times in 536 Posts	Re: The mystery goes on !! Did it start running rough on low fuel after being filled up at an unfamiliar (place and brand) outlet? My Dad had a similar problem with one of his cars, and the cause must have been a fill at a "Q8" station in North Yorkshire that put a load of sediment in the tank. If so, I'd suspect the sediment being more likely. If not, I have no idea which is more likely, or easier to test.

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