I have a rather stranger problem last night. I was driving though a rail road track, one of the rough ones where you have to slow down and pick your line through. I drive through that every day and no problems. But last night, right after I got pass the tracks, the engine start to hesitate. I was in 5th going about 50, open up the throttle slowly and nothing. Down shift to 4th, give it more and rev still won’t go up. I ended up going slow for about a mile and it came back to life. Car is 04 with 48000 miles, oil change every 3-3.5k, plugs changed @ ~33k, pulley installed 3 weeks ago. I probably should check/replace coil/wires. Any other ideas? I’m hoping there are no problems with the engine itself, although I still have 2 years and 52k mile for engine warranty.

 

which pulley was installed? crank? clear the NVRAM and make sure the tone wheel and sensor are lined up properly.

kevin,.

 

In case anyone else is wondering: tone wheel.

 

It's was the AP crank pulley. I did have a check engine light afterward, but everything was reset and the car drove fine until I hit that rough track last night.