I have a 1998 24 cavalier, 2.4 twin cam engine. I have the est off and check engine light on. it chuggs whenever I come to a stop sign or a red light but drives good on the highway. I unplugged the tsp senso and drives good with the lights still on but it some times kicks down hard at the 3rd gear can anyone help me?

SOURCE: 1989 cavalier z24

I just fixed my car, it was the spark plug wires leading to the wrong plugs, it runs like a champ now. Just did my first burn-out! :)

SOURCE: 2001 chevy cavalier trac light

Might have a front wheel bearing going out take it to a shop they can hook up a computer and tell you which bearing it is

Marvin

• 85242 Answers
• Posted on Mar 03, 2009

SOURCE: truck dies when i stop or slow down

this may be the cause, try it and see if it helps, it is a very common cause of problems like yours.
Here is the most common cause of surges and stalls and low idle rough idle, it is the idle speed control air-bypass valve and throttle valve (IAC for short), they get full of gunk over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

SOURCE: P0300 Code 2001 Chevy Cavalier 2.4 twin cam

I would've started with the coil packs, modules, boots and plugs myself. They give many problems on the quad 4s?.

SOURCE: 1987 Cavalier keeps stalling and i have a difficult time starting

The stalling out part makes me want to say you have a bad Torque Converter Clutch lock up solenoid. ( TCC ) They are notorious for that.
A quick and dirty fix is to simply unplug them. It wont really harm anything unplugging it but unplugging it will make the car run a tad bit warmer and your gas mileage will suffer by about 10 mpg.
( I had to do the same thing last summer )

The no spark makes me want to say check the coil pac, ignition module under the coil pac, and the crank position sensor under the coil pac / ignition module assembly which is mounted in the block. All are located centrally on the rear of the engine under the intake manifold. You will likely need to reach them from under neath.