Mechanics

HYUNDAI XG350 ENGINE PROBLEM

2003 Hyundai XG350 • 69,000 miles

My car shifts erratically. Between gears it begins to jerk and be ready to stall. I let up on the gas and the shift occurs. Car accelerates slowly until time for next shift is approaching, then jerking begins again. When car is stopped, when brake is released car lunges forward as if you had been rear ended. At idle RPM's are about 550.
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Joe Sok
December 20, 2012.




I would start at looking at the cat converter back pressure. It sounds like the engine cannot breathe

Roy

ASEMaster6371
Dec 20, 2012.


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