Injector testing dilema.

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My Name: midiman

Experienced Member
Posts: 70
Joined: Sun Sep 08, 2013 9:26 am
Model: C3 2002-2005, Original shape model
Year: 2003 (03)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 141000
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)

Post

Hi,

I need to get the dreaded injectors tested and I don't have a definitive way to determining which one is at fault.

It will cost me around £100 to get them al out and refitted.

Then another £10 each to get them fully tested.

Someone pointed out that I can send them off to this company https://www.ebay.co.uk/itm/CITROEN-C3-DE ... 35cd1eb939

But I don't see the point of paying £21 each to get them cleaned, tested and then be told that they have failed.

My car has done 108k miles, and the diesel specialist I spoke too said reckons that they would probably all fail the bench test at that age. Even if they were working ok and because you can't swap them around it makes it harder to diagnose which ones are suspect.

I'm thinking about having them all taken out, get them to do the £10 test, crossing my fingers and getting them replaced with a recon. If I have to get all 4 then there is nothing I can do.

Or else I will have to get however many I need, get them put back in and chance it.

It's the only way I can think of keeping the cost down.

What do you think I should do?

Thanks
User avatar
My Name: C3driver52

Guru
Posts: 1938
Joined: Sat Apr 30, 2011 7:40 pm
Model: C3 2002-2005, Original shape model
Year: 2003 (03)
Engine Size: 1.4 i
Fuel Type: Petrol
Mileage: 79984
Trim Level: VTR+
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: TU3 (75 PS)
Has thanked: 110 times
Been thanked: 67 times

Post

Did you try a leak-off test to see which injector is worst? Then you could just change the one that is giving the most trouble.
My Name: midiman

Experienced Member
Posts: 70
Joined: Sun Sep 08, 2013 9:26 am
Model: C3 2002-2005, Original shape model
Year: 2003 (03)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 141000
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)

Post

C3driver52 wrote:Did you try a leak-off test to see which injector is worst? Then you could just change the one that is giving the most trouble.
No because I don't entirely know how to do it and I don't want to mess anything up.

You posted a link to this kit. https://www.ebay.co.uk/itm/Delphi-Comple ... 0923629585

I had a look a the leak off today and managed to get one off.

I think I understand how to put this all together now. So I will buy that kit and give it a go.

It may or may not save me from replacing some of the injectors.
User avatar
My Name: C3driver52

Guru
Posts: 1938
Joined: Sat Apr 30, 2011 7:40 pm
Model: C3 2002-2005, Original shape model
Year: 2003 (03)
Engine Size: 1.4 i
Fuel Type: Petrol
Mileage: 79984
Trim Level: VTR+
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: TU3 (75 PS)
Has thanked: 110 times
Been thanked: 67 times

Post

midiman wrote: You posted a link to this kit. https://www.ebay.co.uk/itm/Delphi-Comple ... 0923629585

I had a look a the leak off today and managed to get one off.

I think I understand how to put this all together now. So I will buy that kit and give it a go.

It may or may not save me from replacing some of the injectors.
That kit is for the Delphi injectors found on the 16v diesel engines. The 8v engines use Bosch or Siemens injectors which have a different leak off connector, like these.

Quite simply the original citroen leak off pipes are disconnected and put to one side and one new leak off connector is fitted to each injector, attached to a length of pipe which leads to one of four clear water bottles.

The leak off from each injector runs into its own water bottle rather than being returned to the fuel tank.

A good injector will have minimal leakoff, a worn injector will have lots of leakoff. Compare the levels in the bottles to identify the most worn injector.

How do I perform a leak off on a 1.4HDi 16v? has some pictures.
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