Date: Thu, 27 Sep 2007 03:22:28 GMT From: Doug Schwarz <seenospamfor.address.edu> Subject: Re: Intermittent engine vibration
In article <46F56DDF.6F9C565Cnospamail.com>, Eeyore <rabbitsfriendsandrelationsnospamail.com> wrote: > Sometimes things just fail unexpectedly. > > Plugs can develop degraded insualtion for example. > > I had a Vauxhall once that behaved a bit like your Saab. The problem turned > out > to be a hairline crack in the distributor cap. > > Graham Thanks, again, for your comments. Today I replaced the coil, distributor cap, rotor and all HT wires. The spark plugs themselves were replaced at 95k miles (currently at 113k miles so that's 18k miles ago). No change in symptoms. Well, at least now I know what is *not* causing the vibration. As an aside, the rotor was very hard to remove. I literally had to saw and crush it to get it off and then lightly file the shaft to remove all the bits that were still stuck on. Weird. Any other suggestions anyone? Charles suggested leaking vacuum hoses -- how would I check those? Could an engine mount fail intermittently? For those just tuning in: I have a 1995 900S with an intermittent engine vibration. It doesn't matter whether the car is moving or stationary and it seems to peak in amplitude at about 3200 rpm. -- Doug Schwarz dmschwarz&ieee,org Make obvious changes to get real email address.
