2005 Hyundai Tuscon Ilding, stalling, lunging

PURPLEDUCKY

MEMBER
2005 HYUNDAI TUCSON

Engine Performance problem
2005 Hyundai Tuscon 6 cyl Four Wheel Drive 86000 miles

Starting Thursday when I brought my son home from preschool it started having problems (didn't take it out Friday but took it out again today). Coming home we go around a turn before we turn off onto our road. The RPMs like got stuck. It stayed at like 3000 for a second and then lunged forward. Then when I pulled into the parking lot, as I was about to park, it died. The RPMs went down below 500 I believe. Then today as I took the kids to an Easter egg hunt it died twice more (both times at stops and I think the RPMs went below 500). And it did the lunge thing once too. It tried to died 2 other times but I hit the gas real quick and got it to stay alive. I heard timing belts could cause this as well as alternator issues. Is this true and what else could it be?

3 Replies

JACOBANDNICKOLAS

MECHANIC
108,244 POSTS

Has the check engine light come on? To me it sounds more like a throttle position sensor (TPS), but I need to know if the check engine light is on.

Let me know.

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Tuesday, May 25th, 2010 AT 6:32 AM

LEHY

MEMBER
1 POST

My car does not have any engine lights on. It is hard to describe. It is as if I am driving fine and then as I exit the freeway and brake to stop, the engine doesn't sound like it slows down - maybe sounds like a little rev (but not much). It has also died at a stop sign or when slowing way down (like pulling into my driveway) but starts right up again. I brought it in and they said that there was nothing wrong, diagnostics were fine so they researched online. They said they found that other people who described a problem similar to mine was either the crank shaft or the fuel injector. My crank shaft looked fine so we did the fuel injector and a transmission flush (because another way to describe it that sometimes it also feels like it is skipping gears or something). Well, I don't think it worked. Thoughts?