Question about 1998 Saturn SL
One question, have you replaced the ECTS (Electronic Cooling Temperature Sensor)? These cause no end of different seemingly unrelated problems on Saturns. Peice is about ten bucks and is an easy install. Just search on youtube for a how-to video. Even if that's not the problem it is reccommended to replace this peice just the same as they ALL end up going bad at some point.
If that's not a fix, start pulling plugs. Check to see if they're correctly gapped and if they have any damage/corrosion. If you're running Platinum plugs, immediatly change to a copper plug as Platinums have no place in these motors. Most people have the best luck with NGK copper.
Check to make sure that your plug wires haven't been crossed. This sounds like a plug or wire issue most likely so it has to be in that family, if the plugs are good, wires good and not crossed, sensors are fine, then time to replace your coil packs. If you've replaced everything up to the coil packs then that is most likely the cause of your dillema.
Posted on Oct 25, 2008
Have you tried cleaning the contacts on the ECTS?
1997 Saturn SW2 - Two main symptoms are Lean Misfire at low or high speed. The car will buck coming off idle. It can happen when coasting down a hill when my foot is barely on the gas. Hydro Carbons (HC) have always been on the high side.
I have owned this car since it was new and it start to shake a few seconds after starting - rough and erratic idle. Then Service Engine Soon (SES) light would start flashing then stay lit without blinking. A day or so later the light would go off and not come on for months. After the catalitic converter was replaced around 1999 along with several emmission sensors the problem went away but returned around 80K.
Around 70K miles things acted up more when the car was about 6 years old. To fix the probem I replaced spark plugs, wires AND fuel filter which had never been replaced.
Recenlty I replaced plugs (genuine AC), wires, fuel filter (last year) Throttle Position Sensor (TPS) even though the old one tested ok. I have never touched the ECTS and am going to check that now.
Posted on May 29, 2009
THE FIRST THING TO REPLACE IT THE CRANKSHAFT POSITION SENSOR!!!!! DO NOT DO ANYTHING BEFORE YOU DO THIS!! $20.00 BUCKS!!! THIS COVERS ALL THE PROBLEMS I SEE ON THIS SITE!!!
Posted on Sep 20, 2009
I just had this SAME problem with my car.. get a compression test done and if on cylinder reads way lower then the others then your engine is shot!...
Posted on Nov 01, 2008
I had roughly the same problem and replaced my engine and transmission mounts to minimize vibration and line up all gears and connections between engine and drive shaft.
Posted on Mar 01, 2009
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:
May 01, 2014 | 2003 Mazda Tribute
Jun 23, 2011 | 2009 Ford F-150
Jun 23, 2011 | 2004 Ford F150
Feb 12, 2010 | 1997 Ford Expedition
Feb 06, 2010 | 2003 Mazda Protege
Jan 15, 2010 | 2003 Mitsubishi Eclipse Coupe
Aug 14, 2009 | 2004 Dodge Ram 1500
May 07, 2009 | 1998 Dodge Intrepid
Apr 20, 2009 | 2000 Volkswagen Beetle
1,225 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: