Date: Thu, 19 Jul 2007 04:49:09 -0700
From: jrh <joshuarhellernospaml.com>
Subject: Re: Another DI Cassette failure problem


On Jul 17, 5:03 pm, "Charles C." <c.k.christacopoulos.remove...nospamee.ac.uk> wrote: > jrh wrote: > > My 2001 Saab 9-3 convertible has had a repeated problem with the DI > > cassette. I purchased it used at around 55k miles and have had it for > > apx. 3 years and it now has 79k. In that time the DI cassette has > > been replaced THREE times and just went out AGAIN. I know these are > > not the most dependable part, but surely 4 in 24k miles is more > > frequently that usual. My mechanic hasn't told me of a catalytic > > converter problem that has been mentioned here and the engine light > > has gone on each time (so thankfully I haven't been stranded or > > experienced any of the other horror stories mentioned by some here). > > > Is this just an absurdly expensive repair that I should expect as a > > result of being a SAAB owner or does anyone know of anything else that > > might be an issue that would lead to this repeated problem? > > > Josh > > As has already been said. You must use the correct NGK sparking plugs > AND you must replace them at the same time as the cassette. > > In the mileage the car has done, it should only have had one cassette > fail ... if that. > > :-) > Charles > > -- > Please remove _removeme_ to reply. Actually, I wanted to double check before responding, but my SAAB does, in fact, have NGK plugs, which were replaced at the time of the last cassette change (although I don't think they were the time before that). Some of my reading on this subject has indicated that heat and vibration can expedite a cassette failure. I have a slightly bent wheel that causes some vibration at speeds between 55 and 65 mph and my water pump was also failing (not to mention, I live in Florida which is a bit hot during the summer). Has anyone else had an experience where this type of heat and vibration contributed to the failure or am I just coming up with a "post hoc ergo proctor hoc" excuse?

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