Date: Fri, 10 Oct 2003 04:23:36 GMT
From: "xtreme" <>
Subject: Re: 2.3 liter hesitates on acceleration

Yes, I did notice a leak in the exhaust and I also had a leaking vacuum hose which I already replaced. At this point I am suspecting retarded timing. Thanks for the response. :) "SAABurger" <> wrote in message news:Ipphb.21556$ > Could be an auto box thing but ..... > > I have a very similar engine in my manual 9000 CS 2.3-16, and had hesitation > with overall loss of power for a whole 20 months!! Checked all sorts under > the bonnet to no avail. > > Then ...... > > Front section of the exhaust blew at the flexible coupling and was replaced. > PROBLEM CURED. Back to normal 2.3 grunt. > > I assume the exhaust had had a minor leak the whole time, and the lambda > sensor wasn't seeing transitions. Acquired wisdom suggested a) vacuum leaks > or b) ignition cassette but these proved OK. > > Cost of exhaust section was 117 GBP for immediate fitting, a bit less > (90ish) from another garage if had been able to wait. This is probably a bit > too high a price to consider on a diagnostic basis, but worth checking. > > Best of luck > > > "xtreme" <> wrote in message > news:5llhb.115004$ > > I have an unusual problem with a '96 900S: > > > > When I depress the fuel pedal to pass a car on the autobahn, the 2.3 liter > > engine (no turbo) in my '96 900S hesitates for about one second before the > > lower gear is engaged and the car begins to accelerate. I think this > > hesitation is very dangerous if split decisions need to be made ASAP. > Anyone > > else has this dilemma? > > > > I assume the problem may be with the timing of the engine coupled with the > > fuel delivery. Since the car is not carbureted, I think the fuel injection > > is not synchronized properly with the downshift cycle, and the engine > > timing. How do I fix this? Thanks. > > > > > >

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