Date: Thu, 13 Apr 2000 12:10:03 GMT
Subject: Re: Engine RPM

On Wed, 12 Apr 2000 18:13:39 GMT, (Mark Schnittman) wrote: You might want to check for a vaccum leak. My '88 spg did the same thing till I got rid of all the leaking hoses. Also a bad Hooter (Turbo Bypass) valve may be the cause. Craig >On Tue, 11 Apr 2000 19:31:31 GMT, (Jos >Wijdeven) wrote: > >>"Erick Edwards" <> wrote: >> >>I have the same problem. My saab mechanic says it's normal (although I >>thought it didn't at first). >> >>Jos Wijdeven >>Saab 900s Aero Intercooler (1992) and very happy with it! >> >> >>>My 1987 900S has a peculiar problem. Whenever I decelerate and step on the >>>clutch, the engine RPM plummets to near zero (according to the tach), and >>>then rebounds to normal. Adjustiing the dashpot did not improve the >>>situation. >>> >>>Other than that, the car runs fine. >>> >>>Anyone else had this problem? >>> >>> >> > > >My 85 900 does that some times when its cold out and the engine hasn't >warmed up. Its definitely an indication that something isn't working >quite right. But I'm not sure what that something is. I wonder if it >isn't a particular component, but more that the engine is old and warn >and it needs some time to heat up and expand to make good seals in the >cylinders. > >mark

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