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Robert
Robert, ASE Certified Master
Category: Dodge
Satisfied Customers: 4277
Experience:  Dodge Master Certified, Dodge Sprinter Certified
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2003 dodge intrepid 2.7L p0016 code - replaced both cam and

Customer Question

2003 dodge intrepid 2.7L p0016 code - replaced both cam and crank sensors (BWD) and code comes back every time I erase it. Car wont go over 2400rpm, otherwise seems to run fine at all speeds as long as the throttle is babied
Submitted: 1 year ago.
Category: Dodge
Expert:  Robert replied 1 year ago.

Hello, welcome and thanks for asking your question. My name is*****'m a Certified Auto Technician with 28+ years experience. I will do my best to assist you. please keep in mind that I may need to ask questions of you before I can answer. When you reply please feel free to add as much detailed information as possible pertaining to your concern.

Have there been any other repairs such as water pump or timing chain replacement recently?

Customer: replied 1 year ago.
Not recently. The water pump failed and was replaced January of 2014. While it was apart, I had the timing chain replaced. Temps were -20F outside at the time, so I took into a shop to have the work done. Therefore, I don't know any of the details about how the repair went.
Customer: replied 1 year ago.
oh, that was probably about 100k miles. The car has about 118k miles on it now.
Expert:  Robert replied 1 year ago.

The P0016 code will set if the cam/crank sensors are out of alignment or if there is damage to one of the tone wheels. Since it has 18k on it since the timing chain and water pump replacement, I am suspecting a possible cracked or broken flex plate. When this happens you may or may not hear knocking noise at idle but if the crank rotates slightly it can throw the cam crank alignment off and set the p0016. At this time, it may be a good idea to diagnose for the possibility of a broken flex plate...

Keep me posted and let me know if you have any additional questions...

Thank you,

Robert

Customer: replied 1 year ago.
I am aware of the broken flexplate possibly setting the code, but the real question is how do you troubleshoot that issue in the driveway?
Expert:  Robert replied 1 year ago.

Kind of hard to do in the driveway. You will need to raise the front of the vehicle on jackstands, pull the lower dust cover between engine and transmission. You should be able to see the center area of the flex plate. Look for spider cracks on the flex plate and also for signs of rust powder. IF you find these signs, chances are good that the flex plate is broken....

Keep me posted and let me know if you have any additional questions...

Thank you,

Robert

Customer: replied 1 year ago.
ok, that's what I needed to know. It sounds like there is an inspection cover that can be removed. I'll look it over tomorrow and I'll get an answer, even if it's not what I want to hear. I've got new front struts and an exhaust system sitting in the garage waiting for me to install this weekend. I might as well yank the transmission while I've got it half uncovered anyway:) It's probably not any more work than the timing chain and water pump on that car.
Expert:  Robert replied 1 year ago.

Cool, good luck and let me know if you need additional assistance...

Thank you,

Robert

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Customer: replied 1 year ago.
There was nothing wrong with the flex plate. I put another set of brand new sensors on the vehicle and the problem still persisted. I then spent several hours dismantling the wire harness and inspecting it for faults and/or broken circuits. The vehicle finally died on me this week and none of the cylinders had any compression, so I tore into the motor and found that the pretensioner failed, the aftermarket stop block that was supposed to prevent the chain guide from going totally slack had failed, the timing chain had jumped multiple teeth and the valves have been bent.
Customer: replied 1 year ago.
Nope, broken flex plates are looking down the wrong rabbit hole. In my opinion, with this engine, if a couple sets of new sensors don't fix the problem, it's time to tear off the timing chain cover and rocker covers to inspect the timing system - no matter how recently any work was done. Failure to do so is catastrophic!
Expert:  Robert replied 1 year ago.

I've seen that problem when the hydraulic tensioner is reused instead of replacing it also...

I've also seen many flex plate problems, that is why I thought I'd mention that possibility. Strange that there was no rattling sounds with the timing chain even though failure was eminent...??

The 2.7 has been a very poor engine overall, very few make it to 200k miles....

______________________________________

If you need additional information, don't hesitate to ask, I am happy to help as long as necessary to help solve your concern. Remember, a "Positive" Rating will not close this question, You can post a reply here whenever you want, even after rating my answer!

Thank you!

Robert

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