1999 Mitsubishi Eclipse

SAVVY09

MEMBER
1999 MITSUBISHI ECLIPSE
4 CYL
FWD
AUTOMATIC
160,000 MILES

So I have this 99 Eclipse, and sometimes (not always) when I'm sitting at a light. The car seems to slip out of 1st (is that possible?) And it feels like it's in neutral cause when I lightly put my foot on the gas pedal the car won't move forward but the RPMs rise like they normally would, but when I let off the gas pedal the car kind of jumps forward.

I'm wondering what could be the cause of this.

Also, the car seems sluggish to get up to speed. I just recently had the gaskets and spark plugs replaced.

1 Reply

RASMATAZ

MECHANIC
75,992 POSTS

Lack of acceleration, chugging, hesitating, jerking, bogging, misfiring etc. Could be caused by one of the following below:

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Knock sensor
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
False air leakage.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note:If it doesn't apply disregard it.