zachary97
Newbie
Alright so I have a 98 with Vortec 350 and I have a bad Hesitation on Acceleration and at idle.if I’m sitting in Park at idle and I tap the gas pedal a Quarter Way down the rpms drop form 700 to around 400 And it will almost stall sometimes.I get some detonation Sometimes its worse in drive then park.now if I tap the gas to wot in park I get more detonation and sometimes it pops in the intake also sometimes if I’m backing out of a parking spot and Turing at the same time the truck will stall but fires right back up and if I’m driving and go wot it has a bad hesitation. Also I’ve had a few times where the rpms start going up and down at idle.so i did new plugs wires cap rotor and coil a few months ago no misfires no check engine light the fuel pressure was at 50psi at idle so I bought but a new Delphi fuel pump and filter put them In today still the same has new cats on it I’m thinking it’s the Injectors because if I take the intake tube off and open the Throttle I can smell gas in the intake but idk.any ideas what it is?