Was having problems with the car stumbling almost an sputtering when taking off or sitting still seems alot worse under load. Have changed out all 6 spark plugs tried to clean the pcv valve the best I could. After changing the plugs the sputtering an stumbling seemed to stop until I let it cool back down an went an started it again an now it's back to where it's cutting out an stumbling almost just not as bad as first time. It did throw a code for a random/multiple cylinder misfire an after changing the plugs it hasn't came back on yet. It seems to run a little smoother besides it stumbling an sputtering. I noticed when it does that the rpms go down an then back up. I'm thinking about trying to test the coils any help would be appreciated scotty
2008 charger se 2.7l
automatic trans 195,000
How old are air and fuel filters? Is fuel pressure OK? Any vacuum leaks? Anything suspicious in live data?
You could try this:
https://www.youtube.com/watch?v=NWCKvU2FmDc
it seems to be getting plenty of fuel
how can you tell?
Fuel pressure is one of the 1st things I would check.
Ok will try that. I've notice two coils were cracked an had a couple people tell me that's probably the culprit something to do with the first or secondary ignition
yeah cracked coils aren't good either.
If you crank the engine in the dark, mist some water, and see a light show then they're shot.
Ok thanks ima check them out an will let you know what I get. Is there a way to test them. Someone mentioned using a multimeter
Yeah ,like I said. Mist some water. If engine starts to misfire then they're done.
But if you say they're cracked, that's reason enough for me to change them.
The code was p0300
Not extremely old close to a year maybe. Haven't checked fuel pressure yet it seems to be getting plenty of fuel an no vaccum leaks that I can physically see or hear. An no not yet I have the fixd obd scanner I've been checking constantly. I know it did have the p0300 code but it hasn't came back on since the plug change. I noticed one or two coils are cracked around the insulator. Think that could have anything to do with it. Me an a couple other people have looked at it an tried to figure it out but can't come up with anything. An I tried cleaning the maf sensor an map sensor
Misread the mileage it's got 147,000
I cleaned the throttle body to an it's still doing the same thing. I'ma try checking the ignition coils and see what I get