Q: Vehicle stalls both at idle and while moving without triggering any check engine codes.

asked by on

Vehicle stalls both at idle and while moving without triggering any check engine codes. If it stalls while moving it will restart itself, usually. Battery/Alternator check out ok. Ground connections good. Already replaced Idle Air Control, Throttle position sensor, MAP sensor, Intake Air Temp sensor, Crankshaft Pos Sensor, Camshaft Pos Sensor, PCV valve and Breather elements. and cleaned throttle body plate. Fuel pump runs ok, Fuel pressure is consistent at manufacturer specified pressure even when it stalls. PCM connections clean.

My car has 130000 miles.
My car has an automatic transmission.

This is usually caused by a bad connection from a main power source. On your Dakota, this would be a fusible link or fuse coming directly from the battery. The fuses will be in the power distribution center under the hood. It will have relays and fuses. What is likely occurring is a loose connection is moving when a bump or something jars it. Once the connection touches again, your car suddenly has power. Nine times out of ten, this is what I have found to be the problem based on your description.

Since there aren’t any codes, you are looking for what could fail without a code. All the sensors will leave a code if they fail. At least now you have a bunch of new sensors though. If all the connections are good a the fuse block under the hood and under the dash, you will need to suspect the PCM. Lightly tapping on the PCM will often reveal the problem. Chrysler products are known for this. Remember to lightly tap on it while the motor is running. If the motor responds consistently, you have found the source of the problem.

A few more notes in regard to this. Even with the PCM, you are chasing a bad connection. Electrical connections may look good to the eye, but that does not mean it is a good connection to electricity. If the PCM responds, before you condemn it, check the PCM connectors for problems. Before you disconnect it, wiggle the connector around while the motor is running. Again, if the motor responds consistently, you have isolated the area of the problem. You still may need a PCM in this case, but you may find a pin in the connector that has been pushed back and can be pulled out. Maybe there is corrosion that can be cleaned.

Look for exposed wires. A power wire that shorts to ground can do this as well. It can also cause many other problems.

If you should require further assistance with this, I recommend the following the inspection to help you out; Car is stalling inspection Be sure to send the technician a note explaining the details of your issue.

Good luck!

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Vehicle stalls both at idle and while moving without triggering any check engine codes.

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Knocking from the engine

Although it is unlikely to be the cause, I would recommend checking your engine oil level. If your oil level is low, the engine will not be lubricated sufficiently enough to function properly and will therefore make knocking sounds as...

Q: O2 sensors

Bank 1 is the cylinder bank that has number 1 cylinder. In your case that would be the front bank. Each bank has two oxygen sensors, the upstream sensors are sensor 1 and the downstream sensors are sensor 2. So...

Q: Can you resurface a rotor with holes?

Hi There, Properly mounted and with a sharp cutting bit, these rotors are no more difficult to re-surface than any others. I would suggest having a professional from YourMechanic come to your location to take a look at the vehicle...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...