Q: Timing chain problem?

asked by on October 16, 2016

Hi, I've mercedes benz E350 and it's mileage is 173K right now. Suddenly check engine light came up and codes are: P0016,P0017,P2004,P0302 P0355 There is misfire in the engine so it'a shaking when I start the car. I'm not sure what's the actual cause.what would be the actual cause for this ? is it timing chain problem ?

Camshaft Position Sensor Replacement $119.59 - $907.58 Get a Quote
Engine is misfiring Inspection $94.99 - $114.99 Get a Quote

It could very well be a timing chain problem. The P0016 and 17 indicate that the camshaft sensors are sensing the camshaft in a position that does not logically correspond with the crankshaft. The P0302 and P0355 codes are misfire codes that might logically follow. The P2004 code is for an intake runner control which may not be related. This could be a very serious issue. If the chain has shifted at all, it could shift more and cause you to bend some valves if it hasn’t already. I recommend not driving the car until you have an expert diagnose the misfire and have the issue resolved.

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

AC/heater not blowing on high.
Having your AC and Heater make a humming noise while running on high can be an annoying occurrence while you are trying to enjoy driving your truck. Since the problem is persisting after replacing the blower motor resistor, there are...
Car making grinding noise
There is a good chance that what you heard was the transmission. Transmissions are very complex systems. It is very likely that the transmission will need to be overhauled or even replaced, depending on what part of the transmission has...
Car stalls and P0401 insufficient egr flow
The P0401 code (https://www.yourmechanic.com/article/p0401-obd-ii-trouble-code-exhaust-gas-recirculation-flow-malfunction-by-jay-safford) is for low EGR flow, but would not be the cause of the stalling if the flow was too low. You also state the problem is when the engine is cold and goes away after it...
I have a front right air suspension problem. The air strut will not raise when the car starts up.
This suspension system on your vehicle uses hydraulic fluid that supports the vehicle and different valves to control the active suspension. The right front unit showing any signs of leakage on the boot should be replaced. This vehicle may be...
Needing help with compatible parts. 2002 Jeep Liberty
The best place to find the answer to this question is at an auto parts store. You will need to find someone willing to help you identify substitute compressors. I am assuming you are wanting to use a used unit...
Leaf spring mount needs to be welded back on
Hi there. This is a difficult question to answer, simply because of the detailed information needed for what portion of the leaf spring (https://www.yourmechanic.com/article/what-are-leaf-springs) mount is damaged or how damaged may have been done to the mount. In general, I'd...
Speedometer and Odometer not working 2002 Mitsubishi Magna
Hello - the lack of speedometer and odometer function is most likely caused by a failure of the vehicle speed sensor (or the wiring to it) (https://www.yourmechanic.com/article/how-long-does-a-speed-sensor-last). This sensor, and its wiring, would have to be tested with a voltmeter...
Why does my 2012 Chevrolet Sonic only rev to 3500 rpm in park.
This is normal for your vehicle. The vehicle is designed not to be overrevved when it is in park. When you start driving the computer recognizes this and allows it to rev higher. I would not worry about this unless...
Growl Noises when breaking
It sounds as if the noise you are describing is probably coming from the brake pads being worn out (https://www.yourmechanic.com/services/brake-pads-replacement). The friction material of a brake pad is mounted to a steel backing plate, and when the friction material wears...

Related articles

P0300 OBD-II Trouble Code: Random/Multiple Cylinder Misfire Detected
P0300 code definition Random/multiple cylinder misfire detected What the P0300 code means Most vehicles will have 4-6 cylinders. Each cylinder will fire...
P2568 OBD-II Trouble Code: Direct O-Zone Reduction Catalyst Temperature Sensor Circuit Range/Performance
P2568 P2568 code definition Direct O-zone Reduction Catalyst Temperature Sensor Circuit Range/Performance What the P2568 code means P2568 is an OBD-II generic code that the engine control module (ECM) has detected the engine o-zone reduction catalyst temperature sensor to be...
P2291 OBD-II Trouble Code: Injector Control Pressure Too Low - Engine Cranking
P2291 Code Definition Injector Control Pressure Too Low - Engine Cranking What the P2291 code means This trouble code will only be...