Question about 1997 Saab 900
Our saab is missfireing or seems like it is. we replaced the ignition coil, spark plugs and taped up our spark plug wires. but everything we do seems to make it worse. we have no idea what it could be any ideas would help!
If you have plug wires you have a naturally aspirated Saab (non-turbo). The entire ignition system must be checked. First, replace the cap and rotor. They are wear/maintenance parts, are cheap, and can be gotten at most auto parts stores (even for Saab). Next, if the high tension leads (plug wires) had cracks and that is why you taped them up, they MUST be replaced. Mere electrical tape will not prevent voltage leakage through these cracks. Make absolutely certain the plugs are resistor and of the proper specs for your model year and engine and that are gapped dead on to spec. Another common wear part is the cam position sensor (a Hall effect sensor that tells the ECU what position the cams are in). You did not mention whether the CEL light is on or whether you retrieved any codes from the OBD port. Go to Autozone or Advance Auto and let them put a code reader on the port to see if you have any active and stored codes (this is free). Finally, a crankshaft position sensor (crank angle sensor) failure could be imminent. This is a known failure part as well.
Posted on Dec 17, 2008
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Sep 18, 2016 | Saab Cars & Trucks
Oct 26, 2010 | 1995 Saab 900
Aug 19, 2009 | 1997 Saab 900
May 19, 2009 | 1995 Saab 900
May 20, 2017 | 1995 Saab 900
Aug 06, 2008 | 1995 Saab 900
Aug 04, 2008 | 1995 Saab 900
424 people viewed this question
Usually answered in minutes!