[300C-DK]

Hi there,

This is my first post,and if anything is mispelled, it's because I am from Denmark.
I have recently bought a Chrysler 300C 5,7 from 2010.

Now it has started acting up!
As you can hear in the video listed below, the car wont accelerate proberbly.
It's going up and down in refs, and when it hits 50 mph/90 km/h it goes into limp mode, and wont accelerate.
The check engine light has come on, and I know i should get the codes, but I am not able to at the moment, and the key toggle dosn't show anything.

When I turn of the car, it smells really bad of either oil from the trans or engine.

Anyone who have had the same problem?

 

[yamabob]

First off velkommen! Sorry to hear you are having this problem. Codes really would help. What is the reason you can not access them? Let’s start there. Have you tried a basic first step of disconnecting the battery for 10 minutes?

 

[300C-DK]

Well i don't have the access to code reader, and almost every workshop i contact, won't touch the car, as it is a pretty uncommen car i Denmark.
I tried to disconnect the battery over night a few days ago. I fixed the + and - minus together as well. Didn't solve anything ?
What suprised me though, was that the radio remembered it's stations and the check engine light was still on.
I would emagine that disconnecting the battery would reset everything?

 

[DGO]

If you don't have a code reader you should be able to do the Keydance. Have a read here: Checking For Codes - Doing The "Key Dance"

 

[300C-DK]

Yeah i know about the key dance, but it comes up with nothing.
It only says - done-, so i'm guessing that it dosn't know.

 

[DGO]

Ooh that's odd you should have codes if it drops into limp mode

 

[magnuman]

Welcome to the forum. As said above, you really need to put a high quality diagnostic scanner on it and check all engine/fuel management modules. Otherwise you'll end up playing guessing games or wait until someone to come on here that has had the same problem and knows how to fix it. With a scanner, things that would interest me the most would be fuel trims, fuel pressure, ignition performance (coil burn times/consistency, and ignition timing patterns), and the cam/crank sensors for proper operation and synchronization. It's also possible that there is a problem with the PCM. A good scanner would probably be able to pick up on that too. Also, FWIW, I wouldn't just start randomly replacing parts until/unless you can pretty much verify where the problem lies. Random, needless parts replacement could get very expensive and still not fix the problem(s).