My 2000 Concorde stutters! The symptoms I'm getting are:

1. The engine check light is constantly on. All I get is the battery disconnect error code. No other error code.

2. When accelerating from a light or onto a freeway (gas pedal floored or halfway floored), the car hesitates and bucks. If I back off and smoothly depress the pedal, it sometimes will accelerate just fine. Othertimes, it hesitates and bucks some more. I repeat backing off and depressing the pedal until I get acceleration.

3. Sometimes, just driving smoothly along at 45mph, the car hesitates, then continues like nothing happened.

4. Sometimes, I get "hard starts." That is, instead of starting right up when the key is turned and the gas pedal slightly depressed, the engine turns over but doesn't catch. It seems like I have to rapidly press and release the gas pedal to get the engine to start. I get "hard starts" it seems after symptoms 1 and 2 have been occuring, then the car is parked for a while.

5. For long periods of time, the car functions with no symptoms. For example, driving 30 minutes on the freeway. Or, I could get symptoms 2 and 3, then it will go for the rest of my trip without incident.

The car has 62k miles on it, but the engine was replaced at 30K due to the sludge problem (yes, I'm part of the lawsuit). The car didn't have these symptoms after the engine was replaced. I'm guessing the symptoms started about 5k-10k miles ago. My mechanic is mystified because he can't seem to reproduce the problem.

Any suggestions on how to isolate the problem?

 

if all u get is the batt code then u need to take it into a shop that can get better codes then what ever u are using and doing because a check engine light does not come on for a batt disconnect.

 

Hello. I was wondering if you were able to determine the stuttering problem. I have a 1999 Concorde that has nearly the exact same symptoms. Thet only difference is so far, I have not had the hard starts. Everything else is identical to yours. If you have an answer, please let me know.

Thank you