I was going thru the drive thru at taco bell tonight and it kinda wanted to die. When I stopped and had it in drive the rpms would drop to about 500-400, the oil guage would drop almost to the red, and the check guages light comes on. It wouldnt die but it seems like it was trying. It only happens once in a while. Which is kinda confusing. When I put it N or P it would idle right back up. Also, sometimes when im not moving and I turn the steering wheel it will do almost the same thing but not as bad. Any ideas?????