My 93 plym voyager, 3.0 has a intermittent hesitation when accelerateing. i've changed fuel pump&filter, egr valve, dist cap&rotor, plugs &wires,fuel inj cleaner, new vacuum hoses.......runs like my old 78chevy p/u when it's cold& the choke's not working. i'm thinking maybe the map sensor is bad.
If your having cold engine start hesitation,you need to check the engine temp switch,it tells the computer how cold it is,so the engine can adjust to a rich start and not a lean one.if the switch is faulty and the computer is being told it is 80degrees,you will not get a rich mixture like no choke at all
The two things I'd be looking at would be the fuel pump, and the transmission. By all means check your transmission fluid. Whereas it is good to check your map sensor, but that and the first oxygen sensor (by the intake manifold) would both need to have issues and that usually throws a code. Is your check engine light on?
514 views
Usually answered in minutes!
×