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Date: 26 Oct 2005 13:29:48 -0700
From: "Jozek" <malyjozeknospamail.com>
Subject: cold start lag in first gear


Hi all, I have recently bought a used '97 Saab 900 SE 2.0 turbo, automatic, for my wife. The car has 145000 km and has been running great until the temperature has dropped recently and we have noticed a problem which concerns me. The temperature drop may be just a coincidence, though, as I do not notice much of a difference in behaviour on various days when the temperature fluctuates somewhat. We live in Canada, Toronto area. The car starts fine and idles very smoothly ~1000 rpm. However, when put in Drive the first time of the day it does not seem to have any power for the first few seconds. It just rolls slowly, almost as if the gas pedal was not depressed. I can push harder on accelerator and the rpm will go up, but the car will not speed up for these first few seconds. It eventually catches on, and drives off fine. It happens only the first 2 or 3 times when accelerating from stopped (I have two STOP signs in my residential complex before I get out to the street). After that, the car seems to have all the power it has always had and shifts to higher gears without problems. There are no stalling issues whatsoever. This only happens when the car has been standing for several hours - if I just stop for groceries or something and the car was warmed up, it behaves properly. I have looked through the group and other places and could not find a definitive answer to what the problem is. From what I found, it looks like it could be the fuel pump, but someone pointed at the transmission problems or vacuum leaks (although these are usually accompanied by rough idling, which is not the case here). I'll be going to the mechanic very soon, but wanted to at least have an idea what to expect. Thanks in advance, Jozek

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