Thread: Pumping pedal on cold start

Hello tnate,

Check for oil in the loom and back at the engine CPU. I had a similar problem to yours happening to my TD5 over the years and couldn't figure it out. When I did take the time to check properly, it looked like I had a problem with the car for a few years( had oil in loom/harness, all over/in the plug as well as it had leached into the CPU and there was a build up of oil and dust in and below the battery box) and wasn't aware of it. Did all the right stuff to fix it and the car runs a lot differently now.... Now there's just those bloody 3 amigo's to go.

Cheers,

Jason

Just some ideas, after the injector loom was ruled out and before concluding that the injector washers/seals need replacement

1. replace the air bleed valve in the filter housing's rear outer connection(WJN500110)

2. if you want to make sure about the glow plugs you must check them one by one with multimeter as the dash light will come on even if the relay is dead or all the plugs are dead cos the warning is managed directly by the ECM based on the coolant temp sensor's input regardless of the power circuit.

Thanks guys. Someone mentioned that it could be a crack in the fuel pump or filter housing allowing fuel to drain back to tank. I cant see any leaks anywhere and there is definitely no fuel puddling around the car. I'll check the air bleed valve.

I had the car serviced and they thought it could be oil in the loom due to a leaking cover gasket. They replaced that part of the loom and the gasket but problem is still there.

Where specifically do I need to check for oil ingress?

to cut a long story short, for the oil in the red plug symptom see this www.discovery2.co.uk / Workshop /Injector Harness

or even here,,
on AULRO,,
http://www.aulro.com/afvb/good-oil/2...l-harness.html

Why would pumping the accelerator pedal make a difference on a diesel (or any fuel injected car)?

Exactly! It doesn't make any difference to the motor as it doesn't deliver a squirt of fuel as it would with a carby.

However, i suspect there is an important psychological advantage for the operator. It give the operator the feeling that he is making a positive contribution to the efforts to start the engine.

However in reality it is as you suggest, a waste of time.

Maybe he is inadvertently doing a prime by pressing the accelerator 5 times.

Regards Philip A