Complete Loss Of Power And Blows Fuse

[mrggt]

hi i have a 1.9 tdi auto 1999 which has started to blow fuse no' 14 under the steering wheel, it's intermitant and when it blows i lose complete power often happens but not exclusively when waiting at junctions. when i replace fuse it normally runs ok for while perhaps as long as 2/3 weeks any ideas where to look?

any help much appreciated

[Amarok]

According to the owners manual Fuse 14 is 15A and covers reversing lights, elec door mirrors, elec sunroof, Speed Control System (Cruise Control) and Heated Front Screen.

 

Do you have cruise control on yours ?

Edited June 10, 2011 by Amarok

[mrggt]

According to the owners manual Fuse 14 is 15A and covers reversing lights, elec door mirrors, elec sunroof, Speed Control System (Cruise Control) and Heated Front Screen.

 

Do you have cruise control on yours ?

thanks for reply amarok

in my owners guide it states that fuse 14 is 10 or 20 amp and is fuel supply [turbo diesel], fuel injection, engine management,secondary air injection[petrol engine]have i got the wrong owners guide? where best should i look for reason fuse blows?

if you have any ideas much appreciated as the car drives well apart from this and can't really afford to change it at the moment

[chrispb123456]

hi i have a 1.9 tdi auto 1999 which has started to blow fuse no' 14 under the steering wheel, it's intermitant and when it blows i lose complete power often happens but not exclusively when waiting at junctions. when i replace fuse it normally runs ok for while perhaps as long as 2/3 weeks any ideas where to look?

any help much appreciated

Hi and welcome to the forum

Can you give us your engine code and the build month 1999 is not precise enough as your on a change.

[mrggt]

hi i have a 1.9 tdi auto 1999 which has started to blow fuse no' 14 under the steering wheel, it's intermitant and when it blows i lose complete power often happens but not exclusively when waiting at junctions. when i replace fuse it normally runs ok for while perhaps as long as 2/3 weeks any ideas where to look?

any help much appreciated

Hi and welcome to the forum

Can you give us your engine code and the build month 1999 is not precise enough as your on a change.

 

car first reg on 13/08/99 im sorry but don't know where to find engine code

regards

gary

[chrispb123456]

Label on timing cover, with engine number on cylinder block and possibly registration document will be like, 1Z. AHU. AFN. ANU.

[mrggt]

Label on timing cover, with engine number on cylinder block and possibly registration document will be like, 1Z. AHU. AFN. ANU.

on reg doc says engine number is xy36282 if that helps

thanks gary

[chrispb123456]

Label on timing cover, with engine number on cylinder block and possibly registration document will be like, 1Z. AHU. AFN. ANU.

on reg doc says engine number is xy36282 if that helps

thanks gary

No thats not it.

[mrggt]

sorry had a look on car but not great with cars and can't seem to find.do i have to remove plastic cover on top of engine to view? also its a vw zetec engine if that info is any good?

otherwise will have to inspect it more tomorrow

thanks gary

[chrispb123456]

sorry had a look on car but not great with cars and can't seem to find.do i have to remove plastic cover on top of engine to view? also its a vw zetec engine if that info is any good?

otherwise will have to inspect it more tomorrow

thanks gary

It should be on the outside edge of the cover although may have got ripped off

Does it say the BHP in your V5

[mrggt]

sorry had a look on car but not great with cars and can't seem to find.do i have to remove plastic cover on top of engine to view? also its a vw zetec engine if that info is any good?

otherwise will have to inspect it more tomorrow

thanks gary

It should be on the outside edge of the cover although may have got ripped off

Does it say the BHP in your V5

no but i'm 98% sure its 109/110

regards

g

[chrispb123456]

The 110 is an AFN. Will have a look through wiring diagrams later.

[chrispb123456]

Hi

Couple of things to check.

1. Run Vagcom diagnostics on car first, this may narrow the search for the fault

2. Relay 109 is first down the line from fuse 14, not known that to blow fuses only usually cause starting and running problems, have you had problems with this relay before? the black colour relay was known for bad solder joints and replaced with a grey colour so if you still have a black one I would change that anyway.

 

3. The engine ECU, MAF, N75,valve N18,Valve are also feed from that fuse, so any dodgy wiring in the engine harness may cause this, or even a component itself.

 

Because it's intermittant it's not an easy one this :)

 

good luck

Edited June 12, 2011 by chrispb123456

[mrggt]

Hi

Couple of things to check.

1. Run Vagcom diagnostics on car first, this may narrow the search for the fault

2. Relay 109 is first down the line from fuse 14, not known that to blow fuses only usually cause starting and running problems, have you had problems with this relay before? the black colour relay was known for bad solder joints and replaced with a grey colour so if you still have a black one I would change that anyway.

 

3. The engine ECU, MAF, N75,valve N18,Valve are also feed from that fuse, so any dodgy wiring in the engine harness may cause this, or even a component itself.

 

Because it's intermittant it's not an easy one this :)

 

good luck

many thanks for advice will check on some things here

not had any problems with the relay before to my knowledge but will check the colour of relay

 

typical of me to have a pain in the butt fault :)