Date: Thu, 20 Feb 2003 17:49:44 -0000 From: "Andy" <andy_nopsamcom> Subject: Re: Check Engine For What??
This is a compiled list from other users here (some may be incorrect): a SAAB "CHECK ENGINE LIGHT" is an indication of poor combustion & emissions caused by : A defective seal at the gas cap (fix or replace the gas cap) Vacuum / In-take air leak (running too lean) - don't let this go on too long Using low octane fuel (use 93 octane gas for a month or so to clean injectors) Dirty throttle (clean or replace) Faulty temperature sensor Faulty O2 sensor The engine oil is not of proper weight The air and fuel mixture is to "rich" or "lean" (quite serious and would require immediate attention) Or you may have a bad engine ground between the engine wiring harness and the intake manifold: CARS AFFECTED: SAAB 900 From Vin # T2000184 & on. The repair is as follows: Step 1. Remove securing screws and washers for engine wiring harness grounds at the intake manifold. Step 2. Replace existing screws with longer screws part # 7978109 X 2 and washer Part # 9166380 X 2 "Matt Willmarth" <matt_willmarthnopsamlobal.net> wrote in message news:d390871b.0302200747.7b44077bnopsaming.google.com... > thanks for the reply steve, sorry i didn't provide more info, its a 97 > saab 900se. 4cyl turbo. > > it should just be emission related though? > > > matt > Steve Crowe <scrowenopsamink.net> wrote in message news:<mha85vcsgug4jf0nmq2rvt13en7jv4v56snopsamcom>... > > On Wed, 19 Feb 2003 20:53:05 GMT, "Matt Willmarth" > > <matt_willmarthnopsamlobal.net> wrote: > > > > >after idling for a while in traffic yesterday, my check engine light's come > > >on. i think that my radiator fan may not be functioning correctly, but this > > >has been the case for awhile ago and the car's temp didn't increase too > > >greatly because it was rather cold and the heater was on. i checked the > > >fluids and they're fine, but i have no idea what needs to be checked. > > >does it have to be checked with the saab diagnostic computer or will a > > >mechanic without one suffice? the manual claims i can drive it for a while > > >without intervention but i don't have any idea how long that is the case. > > >any help would be greatly appreciated. > > > > > >-matt > > > > > Matt, > > > > Check Engine Light or Malfuction Indicator Light (MIL) has come on > > because the car's engine mangment computer has detected a condition > > that may be causing increased emissions. There are many reasons for > > this to happen. The next step interface with the computer and check > > for fault codes or Diagnostic Trouble Codes (DTC). How that is done is > > model/year dependant. Therefore, we, the group, need to know more > > about your car ,other than it is a Saab, before we can offer much more > > info. > > > > Steve
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