Erratic Idle problems
Here are the circumstances: 1996 Intrepid 3.5 with 353,000 miles. Had a major oil leak, so I changed the crank and camshaft seals. I put everything back together and it started up, but the idle immediately was inconsistent. The car would almost stall completely and then rev up on its own. It never leveled out. I thought maybe I had damaged the cam sensor while taking the cam gears off. So, I replaced the sensor and the car idled perfectly for 20 minutes, then it started the erratic idle again. It almost dies, the cruise light flickers for a second, then it revs up. It did not seem as severe as it did before I changed the sensor. I tried it again today and actually drove it about 8 miles before it started the issues again and its only when I am at idle speed and after the engine warms up. When I accelerate everything seems fine. It was not doing this before I tore it down to replace the seals, so I'm sure it is something I did. The check engine light was not even on for most of the time. It did finally come on as I was parking, but then went off the next time I started it up. I am not a mechanic by any means, I watched a YouTube video that showed me how to do most of the work I did. Any ideas would be appreciated.