My 05 SXT coupe had been running a bit "ruffer" than normal the last 1500 miles or so. I was about to take it in and have the dealer look it over, but for giggles I looked the owners manual over and noticed that the plugs are to be changed every 30K. This is the first car I have owned that required a change out at such short intervals. I was under the impression that Japanese engines run their plugs for at least 80K.
I have almost 29K on the clock, so I deduced that the plugs were shot and that was the cause of the "ruff running". I replaced the stock crapions (champions) with some NGK Irridium Plugs $7.00 Each (ouch). Now looking over the old plugs, and comparing them to the picture chart in the back of my Chiltons manual, they show evedence of excessive heat. Being worried I called up Dodge and they told me that the 2.4G Mitsu motor is known for cooking the plugs, and that is the reason for the 30K change-outs.

Now I would like to ask my fellow Dodge/Mitsu drivers if I was fed a load of crap or does this have some truth in it. I would also like recomendations on my next set of plugs I did a little research on the NGK and had them recomended by a Lancer driver that worked at the autoparts store. I went with them this time, but would like to have more info for my next changeout. I do drive about 17K a year so that is not to far off.

Thanks in advance for all you help, and for having this great site.
Gareth
(Rigel)

 

That would be good to know. I've had mine for roughly 10 months now and just passed up 30,000 miles. I drive ALOT. I have noticed a bit of a change in its driving style, but figured it had something to do with the weather change since it just got pretty warm in what seemed like overnight. I'm gonna have to check up on this.

Anyone have any recommendations for a good set of plugs for the sedan (2.4l)?

Thanks in advance and the warning.

 

Update!

So far I am about 250 miles into these new plugs and I am very happy. Gas mileage is improved consideribly, I'm talking 5-6 MPG here!
Pick up is better and the engine is now day one smooth again.

To above post: Your sedan does not have the same engine as my coupe even though they are the same size, though you should be able to get the same type of plugs I did.

I am ordering these same plugs for my Wifes 01 Sebring Convertable's 2.7 Rockauto.com had them for the best price.

I will post again when I run this tank dry.

Rigel

 

Stratus 2.4L SEDAN owners -- a TSB specifies a change in spark plugs from the OEM and recommends swapping out the wires at the same time. (Been there ... done that.)

 

hey im not gitting that check engine code but i am gitting many others....!!!! my map, maf,and tps, sensors are reading corralation at load.. and im gitting a high circut bank one sensor one error. i dont know what to do. i have replaced the map,map,and tps sensors and the check engin light never went off.. this is where it all started--------------------> i took off the cat converter and the car ran fine. ok. well about a week later i took off the throttlebody and bored it out but before i did that i undid my battery to reset the comp. i bored it out then hooked it back up. then the problems began. thats when i replaced all of that ****.... then i went and got 2 new o2 sensors check engin light still on! i went and got a dio done again i was gitting low circut bank 2 sensor 2 i know this wont make sence but hear me out. high circut bank2 sensor 2 ...... yeah.. so i bought a o2 simulator to simulate the cat converter to try to solve the problem and i got another dio done. i must of got like 25 dio's done by now... and i was reading low circut bank2 circut 2 so i fixed that and again went and got another dio done and now im gitting map, maf,and tps, sensors are reading corralation at load.. and im gitting a high circut bank one sensor one error and the car's rpm's wont let me go past 3500.. it bounces like the governor is stoping it when im swithching it from 1st to 2nd to 3rd and so on and when i stop or stay stedy on gas it bounces at 1000 rpms. and when on stoped it will try to cut out almost stalling then catch its self BOY IS THIS CAR PISSING ME OFF. PLEASE HELP CUZ PEOPLE IVE WENT TO DONT KNOW **** ABOUT MODDING CARS AND TELL ME WHAT I KNOW IT IS NOT....................SORRY IF THIS IS A REPEAT FOURM U HAVE SEEN ALOT OF BUT I NEED MAJOR HELP BAD IM RUNNING LOW ON IDEALS!!!1[sm=deadhorse.gif][sm=icon_flaming.gif]