Manifold/header/muffler/tail Pipe Problems of Chrysler 300C

Over 2 years ago at 108,000 miles while driving we experienced a loud rattling noise coming from the engine. It eventually stopped but the car kept running rough and smoking. We opened up the engine and a piston had failed and collapsed in upon itself. We pulled the engine and performed a complete engine rebuild. About 2 months ago at 134,000 miles we had a similar occurrence. We pulled the head and found that cylinder two had damage on the head and corresponding locations on the piston. Compression test confirmed loss of compression on cylinder 2. I purchased a new head and upon reassembly I shook the intake manifold and discovered there were objects inside. I was able to get some of them out and they appear to be parts of the valve seat from cylinder 2. I am attaching photographs of the damage to the cylinder head at cylinder number 2 and also the fragments that I was able to remove from the intake manifold which appear to be parts of the valve seat from the exhaust valve at cylinder number 2. Please note that this car has been driven for 10 years since we purchased it new by my wife and has never been stressed raced or abused in any way. We like our car which is why I went through the trouble of rebuilding the engine 2 years ago and have gone to the lengths that I have gone to this time. However after discovering that this is a common occurrence with this engine I don't feel that I can trust it anymore. Further I am going to have to look at other make vehicles as I don't know if I can trust a Chrysler product anymore. We have been loyal Chrysler consumers for quite some time as well as was my father before me. I'm hoping there is something you can do for us to right this situation.

See all problems of the 2007 Chrysler 300C 🔎.

My Chrysler 300c hemi started idling rough and showing code p0300. Oil/plugs were changed, and my car worked well for ~500 miles. After which the low oil level light chimmed. After taking to the dealer the oil pressure switch was replaced and all was right. Close to a month later, while stopped at a rail crossing the car stalled with error code p1520. I checked the oil which was low and added to the correct level. In the oil, there was no discoloration or anything to cause alarm. I started the engine up and while the p1520 was gone I had the p0300. After removing the manifold small aluminum pieces where found inside. Plugs that were close to 4k miles old were ash covered and throttle body. Valves and cylinder #3 head need to be replaced.

See all problems of the 2006 Chrysler 300C 🔎.

The vehicle will stall out several times after filling the tank with gas and it only stalls out after filling the tank. Vehicle will stall when stopped or when the rpm is low. The problem is the vapor/liquid separator valve located at the top of the fuel tank. The valve is designed to prevent liquid fuel from entering the charcoal canister/emissions system. When the valve fails, liquid gas can enter the line and fill the charcoal canister. After refueling the pcm on the vehicle detects a change in fuel level. Then, when the engine meets certain temperature and driving criteria, the pcm issues a purge command to the charcoal canister to remove the stored gas vapors. It's at that point that all the liquid gas in the line gets sucked into the charcoal canister. The pcm expects to see gas vapors entering the intake manifold and it is prepared to adjust air/fuel mixtures to compensate. However, it is not prepared to see liquid gas coming into the intake. That¿s what causes the engine to stall. This can be a very dangerous situation with the vehicle on the road in traffic. I've read in multiple online forums this same situation is happening to many on the Chrysler 300c early year models. Hopefully a recall will be created to resolve this situation.

See all problems of the 2005 Chrysler 300C 🔎.