Date: Tue, 8 Jul 2003 07:34:05 PST From: mojavegnopsamsp.com (Everett M. Greene) Subject: Re: 1987 900 8 valve Buzzing Fuel Pump
Paul Halliday <pjghnopsamyonder.co.uk> writes: > Grunff at grunffnopsam.com wrote on 08/07/2003 10:14: > > Paul Halliday wrote: > > > >> I also have had some buzzing starting recently. I also had the shakes at > >> about 2000 RPM in the lower gears. After checking the EGR system (which I > >> believe starts functioning at around 2000 RPM), I pretty much gave up and > >> resigned myself to mentioning it to my garage next time the beast is in. > > > > Did it have the shakes specifically at 2000rpm, or 2000rpm and > > above? > > > > If the former, then IME that kind of problem is almost always > > either ignition or injector related. Could have been as simple > > as a loose ignition lead or injector plug. > > The shakes were at 2000 RPM specifically, perhaps present below 2000 RPM as > well but not that noticeable. Once above that, they were gone. I did check > the tightness of the sparks and re-set my HT leads at the weekend. Case > solved :) Thanks for the tip. I've had somewhat similar symptoms when the rear fuel pump has failed. It gets loud enough to be heard while driving and then engine problems begin. I've had symptoms as if the engine was having a vapor lock problem and, in the most recent failure, the engine stopped completely for a moment before resuming operation.
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