Im at a lost and im sure since this is a great website that it might have been covered.
No check engine lights.
Let me start by saying I have had the transmission checked, as well as changed fluid. Catalytic converter checked, air filter, new belt. 76k+ miles
Doesnt matter if its hot or cold outside, engine either.
Randomly from stopped position the car hesitates then surges forward. Also at times accelerating from stopped the engine shudders, and surges.
Guy at muffler shop said possible misfire, but havent checked plugs yet, and also read that throttle body could be gummy/clogged.
Anyone have any suggestions. Was going to change spark plugs this weekend but would like a new lead if possible.
THanks for any help.