Something is wrong with the car! It is a 1999 Pontiac Grand Prix GTP with 90,000 miles.
I wasn't beating on it, nothing unusual. All of a sudden I thought I felt a little hesitation when accelerating from about 40 - 60mph. I didn't think anything of it. I pull into a shopping center and start noticing that it is feeling very lumpy under idle (rolling at like
5-10mph). I had my foot on the brake and the rpms are going all over the place, like down to 400 up to 1500, up down up down.When I accelerate it hesitates then goes, hesitates then goes, etc. Sometimes it will go smooth for a second, but for the most part there is alot of hesitation. It finally stalled out when I was waiting in line at taco bell. When I started it back up I noticed that the TCS OFF was lit, and when I hit the TCS button, it would not toggle, it just stayed off. This could have been happening before it stalled too, I didn't notice.
The whole way home, I was getting the hesitation on acceleration. Easy accel, hard accel, boost, no boost, didn't matter.
When I got home, I turned it off, and turned it back on, and the TCS went back on, and I could toggle it as normal. I let her idle in park / neutral for a bit, and notice the idle diving down to 3-400 then up to
12-1500 then back to 800ish where it would sit for a few, then dive down and shoot up.Something is really screwy!! Anyone know whats going on??? I just got the damn car 200 miles / 5 days ago, so I don't know it's history, but it has driven perfect until this!!