I have a 1999 Saturn SL1. My headlights and dashboard lights dim often while in IDLE. Recently the problem has progressed while in movement. It seems that when I shift, the dimming will also occur. When I accelerate, they light up like normal. I also observed that when the "dimming" occurs, the air flow(AC FAN) also weakens no matter if the A/C is on or off. What could cuase this? When I turn the engine off, and I'm powered by only the battery, all lights are consistently lit. But once that car of mine's engine is turning, the dimming begins. The idle also seems to fluctuate as well, while sitting at stoplights. Besides that, the car runs fine. Accelerates fine. Sounds fine. It's just the energy fluctuating while driving that is starting to concern me. PLEEEEEASE HELP!!
I saw on some other site that someone said they replaced a PCV VALVE when their car "surged when starting" and "stalled at idle" . My problem isn't identical to theirs, but in the same ballpark. CAN YOU GIVE ME SOME ADVICE more specific to my problem? ALL ADVICE IS GREATLY APPRECIATED.
---ROBB snipped-for-privacy@hotmail.com