Is there anyone out there who can help me with this one please. Had 02 car 10 months now 53k miles and apparently very well looked after and very clean and straight. Ran very well with excellent mpg. First noticed fault mid summer when it failed to start when parked on a hill (facing upwards). Thinking the fuel was low I rolled it doen the hill where, after a bit of churning it started. In the following months the same fault manifested a few times and , each time , I nosed the car level or downhill and it started. Gradually the hill that would cause a problem decreased in steepness until 10 days ago it failed to start on the level. I had it taken to local Saab dealer with whom I have now spent a lot of money with them - seemingly to no avail as yet since , having driven the car back from them , it is completely failing to start despite vigorous churning with fully charged battery. Yes there is fuel in it!
The Saab dealers haven't given up yet and are going to try again after Xmas. In theirwork so far they started by replacing some fuel T pieces (?) but that didn't do the trick. They then concluded that the fault wasa known weakness - injector seals. I believe that these are simply copper washers. Replacing these involved them removing the camshaft. In the job they cleaned up carbon deposits from the inlet manifold although this would appear to be incidental to the fault. By the way, the SID display shapes up entirely normally ....on switching on the "ignition" it does its checks and then gives "Check ok"
I'm mechanically minded but have had older and amatuer serviceable petrol engines to date. I'm beginning to conclude that I should stick to them. Any suggestions would be gratefully received! Merry Christmas!
Edited by Pugugly {P} on 24/12/2007 at 15:37
|
|
always try the fuel pump relay - starting with its fuse in the fuse box . If this is a Renault or Vauxhall engine , you could always try popping into one of their dealers at a quiet time , or possibly phoning - you never know , might catch somebody in a generous mood ?
|
|
|
|
This is air getting into the fuel system and allowing the diesel to drain back to the tank. These leaks can be difficult to find as they often do not actually leak diesel. The fuel filter is a good starting point and the associated pipework, gaskets and seals. It may need to go to a diesel specialist and have the fuel lines disconnected and pressure tested to identify the leak. There may also be a one way valve on your model that is seeping and allowing the fuel to flow back into the tank. Regards Peter
|
|
|
mb
They seem to have done the usual causes - the intermediate seals inside the injectors. Hopefully, they didn't damage them during fitting - it's not an easy job.
However; although there's mention of T-pieces, have they replaced the actual leak-back hoses between the injectors? Although they look OK; they can perish and allow drain-back.
|
Hi
Last year when I had a 93 diesel, the difficulties that you are experiencing occurred to mine: almost carbon copy. I have to stress that my mechanical expertise wained with the demise of the distributor cap.
I posted on HJ and received invaluable help including the "Spill back Pipes" needed to be replaced.I took it to the local Saab expert and he confirmed and replaced them. End of problem
hope that this helps
Ian
|
www.honestjohn.co.uk/forum/post/index.htm?t=38898&...9
The thread itself...!
PS
I was on Anglesey this week - nice place, Penmon, sunny and dead calm !
PU
|
|
|
|
Many thanks Ian. I'll definitely follow that one up!. I've been amazed at the response I've had to my plea for help - and on Xmas eve as well...thanks again
|
|
And indeed many thanks to you all - some good ideas in there. I will post a further message when (and if!) this fault is cured.
|
PU
About 3 miles from where I live. Should have called in for a drink and mince pie
Ian
|
|
I still can; up in Denbigh until Thursday and probably back at some time before next Tuesday.
|
|
|
|
|
|
