ALFA GT JTD - help!-try figure this one out.
Help! Going out of my mind. Over the last few months I have had a reoccurring critical failure of the rigid pipe (55188554).
The rigid pipe that connects the diesel pump to the common rail on my Alfa GT JTD. Perhaps someone can point or at least
advise me better than Fiat/Alfa UK have been able to. Just buy another one, it should not fail, we have never heard of
What is happening is that there is a hairline crack right occurring on the outside of the pressed olive type connection
to the diesel pump, running around the pipe just below the olive type connection.
When it first occurred, I thought it was the olive-type seal on the diesel pump side of said rigid pipe which has
a coarse thread. No prob. Refit new pipe, 400 miles later, diesel leakage again from the pump side.Same thing.
Hairline crack, running across the pipe just below the olive-type connection. Hey-ho here we go again.
So.. I replaced the fitting from the diesel pump that the olive sits in, thinking ok maybe the olive of the rigid pipe
needs to be seated to form a good seal.
The Bosch specialist will only deal with the pump as they say anything farther downstream is Alfa.OK.
Get new part ordered, fit all parts, off to Fiat dealer to get ECU read.
If there is a pressure loss the MCSF comes on, logical.
Dealer reads P1191/P1192 fuel pressure faults.
Pretty much what is expected when such catastrophic event occurs. More concerned with P1238 EGR valve fault read.
To my mind, nonsense, should have no bearing on a failing rigid pipe!
Get ECU reset, clean EGR, all good, back on the road.
Some 400 miles later, same thing, pipe has again cracked, precise same location.
The area it is cracking is nowhere near anything that could rub/touch it, the diesel pump is mounted to the motor, so
could not be caused by vibration. These are my by no means professional opinions.
there can be no way of over tightening as it is a coasre thread, when tight comes to a stop. Also the olive would show
signs on stress from flattening into the fitting.
Back to local Fiat dealer, they are as confused as I, never heard of anything like this...this part should never fail
I am told, not particularly interested to be honest.
Given a new part, old failed part has been sent back as a re-claim, obviously to get their money back.
I will not hold my breath on ever receiving an answer regarding the matter.
Presently it is running, I unfortunately, do not have that much faith in it that I am now having to drive the back-up car
as my regular! Seeing my beauty parked up most of the time is heartbreaking.
Took me until I was middle aged man to get an Alfa! Please anyone help!
Does any one have an inkling of an idea of what is happening? Am I just going through a batch of rigid pipes that have
a fault at manufacturing?at my cost. Has anyone ever encountered something like this?
Never having had an oil-burner car before, and my only experience of diesel has been on an old Toyota Dyna,
this really is doing my head in. Any feedback would much appreciated. Thanks for reading.