Q: The engine light just started blinking and it would jerk once I've accelerated to 20 mph.

asked by on August 22, 2017

I have a 2005 Chrysler Pacifica. The engine light just started blinking and it would jerk once I've accelerated to 20 mph. Then it would drive. Why is this happening?

My car has 128000 miles.
My car has an automatic transmission.

Camshaft Position Sensor Replacement $104.59 - $849.08 Get a Quote

Based upon the symptoms you are describing, it sounds like you may have a faulty camshaft position sensor. The camshaft position sensor is a magnetic sensor that monitors camshaft speed to regulate ignition timing and fuel injection timing. It gathers and sends information about the car’s camshaft speed to the car’s electronic control module. This information is used by the computer to further calculate the time of ignition and the timing of fuel injection required by the engine. When this is not working properly, you may experience a drop in power, poor idling, poor fuel mileage and problems starting the vehicle. As the sensor begins to fail and gets worse over time as the signal it provides to the computer weakens. I would recommend having a professional from YourMechanic come to your location to diagnose your [camshaft position sensor](https://www.yourmechanic.com/services/camshaft-position-sensor-replacement.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

when I park on a hill and put it in reverse it cuts off and now cuts off while driving .. no warnings, no check engine light is on

Stalling when the car is put in gear could be due to a faulty MAP sensor but there are other causes. If the engine is stalling randomly while driving, the possible causes are a fault in the electrical system such...

Overdrive on or off?

Unfortunately, this question requires additional information as to the make and model of your vehicle to properly answer. There numerous vehicles on the market with varying overdrive designs that operate mechanically different. In general, most overdrive transmissions will be programmed...

When the car is running it doesn't want to shift gears. But when it's off it will shift gears 2004 Hyundai Accent

Hi - check your clutch hydraulic fluid level. The clutch reservoir may be one and the same as for the brake system - they both use brake fluid. I believe that most likely your clutch slave cylinder has failed and...

Too Much ATF?

Hello. The shop you took the car too is absolutely correct. Your transmission is like your brain, if anything goes into it that may be foreign will fail. Your engine is like your body. You can add things to it...

Overheating after brake modulator replacement

Hello there, there are a few things may have happened to cause your 2000 Cadillac Catera to overheat. The most common would be a radiator cap failure, air in the cooling system, or the wrong type of coolant. A qualified...

Found oil leak when changing spark plugs

Hi there. This is very common on your vehicle. This is caused by the valve cover gasket tube seals. These fail all of the time because they become brittle as the engine gets older. Once that occurs, they start to...

Related articles

How Long Does an Air Cleaner Temperature Sensor Last?
An An air cleaner temperature sensor is not overly common on newer vehicles. This is because in order to ensure that your car engine operates the way it should, several electronic sensors may actually be needed. However, if you drive...
How to Replace an Injector Control Pressure Sensor
Diesel engines have an injector control pressure sensor that fails when there is hard starting, decreased power, or an illuminated Check Engine Light.
How to Replace the Oil Temperature Sensor on Most Cars
Oil, as well as the oil temperature sensor, is crucial to the engine lubrication system. A bad sensor can lead to leaks and poor vehicle performance.