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2000 Saturn SL - Page 9 Questions & Answers
Over heating
AGE & MILEAGE...SERVICE HISTORY? COULD BE A THERMOSTAT (FEEL TOP RAD HOSE COMPARED TO LOWER HOSE FOR EQUAL TEMPS...IF LOWER IS COOLER (AFTER 15 MINS OF WARM UP)...THERMOSTAT IS STUCK! ALSO COULD BE PLUGGED RADIATOR, HEATER CORE...ETC.....
What does it mean when the security warning light is on , saturn 2000 sl1
The security, antitheft, or passlock light is a visual indication that something in the car's antitheft system is failing. In most GM cars and trucks there is a hidden system that most people are unaware even exists. From the moment you put your key in the ignition, there begins a constant line of communication between your key's security chip or transponder, to the ignition's lock cylinder, and then to the car's TDM (Theft Deterrent Module). These 3 parts are in CONSTANT communication. If the key is in the ignition, then these parts are sending signals to each other. The security light illuminates when that signal gets broken, even just for a second. When the signal breaks, the car misinterperates this as an attempt at theft and goes into antitheft mode. The car thinks its being stolen or hotwired because it is not getting that signal from YOUR specific key. This is why the security light turns on and shuts down your vehicle. This link may help you find ways to bypass this or fix it yourself.
http://vatspasslockpasskeysecurityhelp.yolasite.com/
Ny 2000 SL 1.9 liter started to run rough like it is getting to much gas or not enough air, Start good.
Sounds like your AIC air idle control. It's attached to your throttle body. If you take off the throttlebody [2 10mm bolts ] you can check and clean the AIC. It comes off the TB with 2 torx screws. When you get it off, clean the plunger with brake cleaner and clean the TB front and back. The back may have carbon build up. Scrape off and spray down. Replace the opposite way. This only takes 30 minutes so its worth the checking. If car still runs rough, spray the brake cleaner directly onto the intake manifold gasket while it's running. If the car changes in idol at all, the gasket is shot. Concentrate on cylinder 1 and 2. This is the area beside the power steering pump. Spray it good while listening. Also spray the vacuum hoses that go up to the intake. If there is any leaks this is the way to find them.. The onlt other thing I can think of is a weak coil, but I think you will find the problem with the brake cleaner. Let me know how you make out. Cheers from Nova Scotia!
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