Another problem!!!!!!!!

Mark raw · 04-03-2007, 15:51

I have noticed a few times after running then stopping my fabia does not always start everything makes the right noises but just won't fire up, if it stands for a while it is ok (usually at least 10 mins) the garage (rayrigg)that has the warranty says they can only sort it out if it happens while they have it and as you can guess it does not happen then. Anyone else suffer with this problem or know of caise, I am guessing it may be something simple like sprks need cahanging or it floods a lot???
Please help

Chrispy · 04-03-2007, 16:04

Need more info. Engine type, does the engine turn over, etc.

Mark raw · 06-03-2007, 10:01

Engine makes all right noises but just does not fire up. After standing for a while it will but usually at least 15 minutes, very akward when at petrol station.
Skoda Fabia
1.4 8v 2001 Classic. Not sure of engine TYPE but hope this is of use to you
Y reg

Chrispy · 06-03-2007, 12:18

My CRX used to do the same thing and it was fuel pump related.
Also my BMW displayed similar symptoms when the pump was on it's way out before it died totally. Ran fine once running.

Could be either the fuel pump, the fuel pump rellay or the crankshaft position sensor. Have you had a diag done or do you have access to VAG-COM?

The fuel pump will be inside the fuel tank and so when it does it again get in the back seat, quickly pull up the rear bench like when hatching the car and thump the floor under the seat with your fist. That may jolt the dodgy fuel pump into life. If that works its deffo the pump. That worked on my BMW several times and got me to work when I thought the car was dead.

If not, it could be the relay. Would be nice if you could replicate the issue at a place where people are not waiting and you're not in their way.
I would suggest then flicking all the relays in the fuse box to see if one is sticking if it does it again and the above method does not work.

A diag would be the only way of telling if it's the crank position sensor, but this normally gives symptoms all the time, or quite frequently anyway. It results in long cranking times meaning the car will start but takes ages to do it. Leaving it 10 mins should make no difference if it's the crank pos sensor so I am doubtful of this, but you never know.

Once running does the car run ok? No misfiring or anything? Is it good on juice?
Does it only do it when the engine is hot or sometimes cold too?

Mark raw · 06-03-2007, 19:06

It only seems to do it when the engine is hot, if it has been left for a while (say 10 minutes or more) it does not do it. The garage say there is no problem thay can find which is so annoying as it still under warranty (well extra warranty i took out) Thanks for you reply I have no idea bouat mechanics and even ess about electricals.Car runs no probs usually abd v good on fuel etc.
Very gratefull

H Bomb · 06-03-2007, 19:21

This sounds similar to a problem my dad has with his new (1 month ish) Fabia 1.2. He can start the engine, it'll tick over no problem, but when he drives it out of the garage it sometimes just cuts out for no apparent reason. If he revs its nuts off before setting off it dosen't do it.

I had a similar problem coupla years back with my old (now long gone!) 1.4 8v - it turned out to be a sensor at fault.

Chrispy · 06-03-2007, 20:25

Quote:

Originally Posted by Mark raw

It only seems to do it when the engine is hot, if it has been left for a while (say 10 minutes or more) it does not do it. The garage say there is no problem thay can find which is so annoying as it still under warranty (well extra warranty i took out) Thanks for you reply I have no idea bouat mechanics and even ess about electricals.Car runs no probs usually abd v good on fuel etc.
Very gratefull

Sounds more and more like fuel pump to me. Trouble is a fuel pressure check will register it ok. Also a diag wont show it up as being faulty.
The windings on them can break down and stop them spinning. But once they're going they're ok and provide normal pressure.

Next time it does it, pull up the rear seat and thump under it really hard to try and jarr the fuel tank/ pump. See if it starts.

Mark raw · 07-03-2007, 09:26

where abouts do I thump it? driver side or pass and how hard?
Bit scared of hitting it too hard.

heresmo · 07-03-2007, 09:36

Mine (1.4 8V) had the same problem, virtually identical to your description, Mark raw, and it was the temperature sensor which had gone. Is your gauge still moving as expected normally / previously?

Regards
Mo

Mark raw · 08-03-2007, 09:37

The temerature gauge has eventually been sorted with a replaement thermostat it now worknormally however it does not see to have made any difference to restarting problem
If I leave the car soem time it starts but 10 minutes or less then it takes uite a few goes to get it going. Dealer just does not seem interested at all.

heresmo · 08-03-2007, 10:23

Hello again

Because your problem is so similar to the one I had, I've just had a word with the Skoda garage who fixed mine. They reckon (without seeing it of course) that it is most likely to be the temperature thingy. This is what they said (as near as I can recall):

Did he replace only the thermostat? The problem could be caused by the thermostat, the sensor, or the housing itself. The housing can develop a hairline crack which is difficult to see as it's hidden behind. Therefore it would be best to replace the housing, which comes complete with a new sensor anyway and assuming the new thermostat already installed isn't faulty already, that should solve the problem. (Edit: It wouldn't necessarily affect the dashboard gauge.)

I asked about the fuel pump things, but they reckoned the above was the most likely cause. They don't recommend thumping anything by the way (hardly surprisingly) in case that in itself causes damage.

HTH
Mo

Mark raw · 12-03-2007, 20:43

just happened again by the garage so went in and mechanic came out wiv me just as i guessed it started first time. they phoned the skoda garage and they said it may be thermostsat problem. The garages relied we have replaced that taking it back on friday lets hope it works out this time. Thanks for your help all

04-03-2007, 15:51	#1
Mark raw Briskodian Join Date: Jul 2006 Posts: 217 Thanks: 2 Thanked 5 Times in 5 Posts	Another problem!!!!!!!! I have noticed a few times after running then stopping my fabia does not always start everything makes the right noises but just won't fire up, if it stands for a while it is ok (usually at least 10 mins) the garage (rayrigg)that has the warranty says they can only sort it out if it happens while they have it and as you can guess it does not happen then. Anyone else suffer with this problem or know of caise, I am guessing it may be something simple like sprks need cahanging or it floods a lot??? Please help

04-03-2007, 16:04	#2
Chrispy I said HOT DAMN Join Date: Sep 2006 Location: Normanton, West Yorks Posts: 1,714 Thanks: 28 Thanked 65 Times in 54 Posts	Re: Another problem!!!!!!!! Need more info. Engine type, does the engine turn over, etc. __________________ Silver '04 Fabia vRS. Jabba Custom Remap, Seat Surgeons Leather interior, Whiteline RARB, Cupra Console Bushes

06-03-2007, 10:01	#3
Mark raw Briskodian Join Date: Jul 2006 Posts: 217 Thanks: 2 Thanked 5 Times in 5 Posts	Re: Another problem!!!!!!!! Engine makes all right noises but just does not fire up. After standing for a while it will but usually at least 15 minutes, very akward when at petrol station. Skoda Fabia 1.4 8v 2001 Classic. Not sure of engine TYPE but hope this is of use to you Y reg

06-03-2007, 12:18	#4
Chrispy I said HOT DAMN Join Date: Sep 2006 Location: Normanton, West Yorks Posts: 1,714 Thanks: 28 Thanked 65 Times in 54 Posts	Re: Another problem!!!!!!!! My CRX used to do the same thing and it was fuel pump related. Also my BMW displayed similar symptoms when the pump was on it's way out before it died totally. Ran fine once running. Could be either the fuel pump, the fuel pump rellay or the crankshaft position sensor. Have you had a diag done or do you have access to VAG-COM? The fuel pump will be inside the fuel tank and so when it does it again get in the back seat, quickly pull up the rear bench like when hatching the car and thump the floor under the seat with your fist. That may jolt the dodgy fuel pump into life. If that works its deffo the pump. That worked on my BMW several times and got me to work when I thought the car was dead. If not, it could be the relay. Would be nice if you could replicate the issue at a place where people are not waiting and you're not in their way. I would suggest then flicking all the relays in the fuse box to see if one is sticking if it does it again and the above method does not work. A diag would be the only way of telling if it's the crank position sensor, but this normally gives symptoms all the time, or quite frequently anyway. It results in long cranking times meaning the car will start but takes ages to do it. Leaving it 10 mins should make no difference if it's the crank pos sensor so I am doubtful of this, but you never know. Once running does the car run ok? No misfiring or anything? Is it good on juice? Does it only do it when the engine is hot or sometimes cold too? __________________ Silver '04 Fabia vRS. Jabba Custom Remap, Seat Surgeons Leather interior, Whiteline RARB, Cupra Console Bushes

06-03-2007, 19:06	#5
Mark raw Briskodian Join Date: Jul 2006 Posts: 217 Thanks: 2 Thanked 5 Times in 5 Posts	Re: Another problem!!!!!!!! It only seems to do it when the engine is hot, if it has been left for a while (say 10 minutes or more) it does not do it. The garage say there is no problem thay can find which is so annoying as it still under warranty (well extra warranty i took out) Thanks for you reply I have no idea bouat mechanics and even ess about electricals.Car runs no probs usually abd v good on fuel etc. Very gratefull

06-03-2007, 19:21	#6
H Bomb Briskodian Join Date: Feb 2005 Location: Carlisle UK Posts: 230 Thanks: 0 Thanked 1 Time in 1 Post	Re: Another problem!!!!!!!! This sounds similar to a problem my dad has with his new (1 month ish) Fabia 1.2. He can start the engine, it'll tick over no problem, but when he drives it out of the garage it sometimes just cuts out for no apparent reason. If he revs its nuts off before setting off it dosen't do it. I had a similar problem coupla years back with my old (now long gone!) 1.4 8v - it turned out to be a sensor at fault. __________________ Furby Girlie Yellow Fabia Sport 1.2 White Citroen Berlingo 1.8 Furby Girlie

07-03-2007, 09:26	#8
Mark raw Briskodian Join Date: Jul 2006 Posts: 217 Thanks: 2 Thanked 5 Times in 5 Posts	Re: Another problem!!!!!!!! where abouts do I thump it? driver side or pass and how hard? Bit scared of hitting it too hard.

07-03-2007, 09:36	#9
heresmo Briskodian Join Date: Jan 2005 Posts: 12,283 Thanks: 33 Thanked 118 Times in 99 Posts	Re: Another problem!!!!!!!! Mine (1.4 8V) had the same problem, virtually identical to your description, Mark raw, and it was the temperature sensor which had gone. Is your gauge still moving as expected normally / previously? Regards Mo __________________

08-03-2007, 09:37	#10
Mark raw Briskodian Join Date: Jul 2006 Posts: 217 Thanks: 2 Thanked 5 Times in 5 Posts	Re: Another problem!!!!!!!! The temerature gauge has eventually been sorted with a replaement thermostat it now worknormally however it does not see to have made any difference to restarting problem If I leave the car soem time it starts but 10 minutes or less then it takes uite a few goes to get it going. Dealer just does not seem interested at all.

08-03-2007, 10:23	#11
heresmo Briskodian Join Date: Jan 2005 Posts: 12,283 Thanks: 33 Thanked 118 Times in 99 Posts	Re: Another problem!!!!!!!! Hello again Because your problem is so similar to the one I had, I've just had a word with the Skoda garage who fixed mine. They reckon (without seeing it of course) that it is most likely to be the temperature thingy. This is what they said (as near as I can recall): Did he replace only the thermostat? The problem could be caused by the thermostat, the sensor, or the housing itself. The housing can develop a hairline crack which is difficult to see as it's hidden behind. Therefore it would be best to replace the housing, which comes complete with a new sensor anyway and assuming the new thermostat already installed isn't faulty already, that should solve the problem. (Edit: It wouldn't necessarily affect the dashboard gauge.) I asked about the fuel pump things, but they reckoned the above was the most likely cause. They don't recommend thumping anything by the way (hardly surprisingly) in case that in itself causes damage. HTH Mo __________________ Last edited by heresmo; 08-03-2007 at 10:24.

12-03-2007, 20:43	#12
Mark raw Briskodian Join Date: Jul 2006 Posts: 217 Thanks: 2 Thanked 5 Times in 5 Posts	Re: Another problem!!!!!!!! just happened again by the garage so went in and mechanic came out wiv me just as i guessed it started first time. they phoned the skoda garage and they said it may be thermostsat problem. The garages relied we have replaced that taking it back on friday lets hope it works out this time. Thanks for your help all

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