So i got my car back from having the crankshaft bolt drilled out (long story.) Since then it has been stumbling at 1/3 throttle or more after the car has been warmed up.
Now here comes the weird part. I was looking under the hood to see if anything was obviously wrong. I saw the water pump pulley moving. I noticed that ALL of the pulleys were moving! The car was parked on a slight hill, enough that it could get rolling backwards, but nothing crazy, in my driveway. I tried pusing the car backwards, it went, but with a lot of resistance. Now the only thing that makes sense to me would be an insanely shot clutch. But when I'm driving like a normal person, the car runs fine, and yet when I'm in fifth on the freeway and give it a little gas, it will stumble. I don't know where to start. By the way, no DTC or OBD-II codes. I have a 99GT with a vortech sq, accufab TB and c&l plenum.
Now here comes the weird part. I was looking under the hood to see if anything was obviously wrong. I saw the water pump pulley moving. I noticed that ALL of the pulleys were moving! The car was parked on a slight hill, enough that it could get rolling backwards, but nothing crazy, in my driveway. I tried pusing the car backwards, it went, but with a lot of resistance. Now the only thing that makes sense to me would be an insanely shot clutch. But when I'm driving like a normal person, the car runs fine, and yet when I'm in fifth on the freeway and give it a little gas, it will stumble. I don't know where to start. By the way, no DTC or OBD-II codes. I have a 99GT with a vortech sq, accufab TB and c&l plenum.