19 replies to this topic

[Bargi]

Where is it? SC done by Vocky. Just come in from session and steam is coming out of the tank!

[NickB787]

by the relays in the boot possibly

[Bargi]

There is a 10 and a 20 amp together but both are fine.

[Sutol]

Thought the fuse was on the relay. My relay is in the engine bay

Edited by Sutol, 09 November 2014 - 11:15 AM.

[CHILL Gone DUTCH]

I'm not sure where vocky puts them Can you see wires on pump and follow them back Mine is above wheel arch linear

[Bargi]

Found it. Fused relay on bulkhead. But it was OK Looks like pump has sh*t itself! Anyone around Donington got a spare or maybe recommend somewhere?

[fezzasus]

Typically the fused relay is on the charge coolant tank.

[fezzasus]

Check the plug on the pump too, could have fallen off

[Bargi]

Wheel arch out and multimeter. 12 volts to the fuse and 12 volts to pump connector the pump she is no good. If anyone has better access to eurocarparts or some other place that might remotely have the CC pump would you mind doing a search. Bloody thing could easily be changed out.

[fezzasus]

Ford Focus RS 02-05 uses the same one, supposedly.

[fezzasus]

http://www.eurocarpa...882e20cb

[Bargi]

Hmm.. Could be plug, just tested again and nothing. Could have sworn I saw voltage before.

[Bargi]

Battery was changed last night. But can't think of something being bumped at that end that could affect this.

[WrightStuff]

Hi Ray. EuroCarParts and GSF Derby have the pump in stock but they are not open today, sorry 

Any update ?

[vocky]

I normally take the +12v for the CC pump relay coil from the +12v fuel pump relay coil.

 

The CC pump +12v comes via the fuse from the starter motor battery red cable, the fuse is located either in a fused relay or an inline fuse holder near the CC relay.

 

The negative feeds come from the cam cover 'negative post' next to the coilpack

Edited by vocky, 09 November 2014 - 08:06 PM.

[CocoPops]

Mine only comes on when engine running, not just on ignition on. Could yours be the same Bargi? (You tested voltage etc)

[vocky]

that is correct, you only get three seconds after 'ignition on' to test with the engine off, same as fuel pump

[Bargi]

Spent all morning trying to trouble shoot, I thought I was going mad because I'd seen 12 volts at the connector the first time I checked and then not and then 2-3 volts.

So when all seemed nuts I thought it was time for a break and went and had a lovely roast for lunch

Mulled it over and when I got back I then bypassed the relay altogether and the pump sprung to life, result!

Got a the 10amp fuse and put the constant live on one side and pump on the other and wrapped it in some electrical tape and got in a as many sessions as I could

 

Seems the relay was failing intermittently/slowly dying. When cold, voltage was fine, but when it got warm in the engine bay it was spiking and dropping voltage to effectively nothing.

 

While I spent all morning trying to fix the car it explains soooo much which I'll explain further in my High Inlet Temps thread

Edited by Bargi, 09 November 2014 - 08:40 PM.

[NickB787]

great news

[fezzasus]

Glad to hear it's sorted. My first relay I fitted was dead. I suspect the placement of the relay shortens the life a bit - water and extreme heat.