Go Back   DODGE RAM FORUM - Dodge Truck Forums > Dodge Ram Generations Forum > 4th Gen : 2009 - Present > Engine & Performance


Engine & Performance

Having misfire need help


This is a discussion on Having misfire need help within the Engine & Performance forums, part of the 4th Gen : 2009 - Present category!
I have a 2012 1500 5.7 I'm throwing code P0302, which is a misfire in cylinder 2. My truck has ...


Like Tree3Likes
  • 1 Post By huntergreen
  • 1 Post By Rupert
  • 1 Post By Ghost12

Sponsored By: Moe's Performance
Reply
 
LinkBack Thread Tools Display Modes
Old 07-16-2017, 05:46 PM   #1 (permalink)
Junior Member
 
Join Date: Apr 2017
Age: 26
Posts: 2

Ram Year: 2012
Engine: Hemi 5.7
Default Having misfire need help
I have a 2012 1500 5.7

I'm throwing code P0302, which is a misfire in cylinder 2. My truck has a noticeable ticking louder than usual hemi tick. I have 98,400 miles on it. I swapped 2 of the coil packs to see if it was the coil and nothing. Next i changed the plugs and gapped them to .044-.045 and still nothing.

Anyone ever have this issue? Any suggestions on what to try next?

"THANS IN ADVANCE "


Sponsored Ad
Register to remove this ad.
Ghost12 is offline   Reply With Quote
Old 07-16-2017, 05:59 PM   #2 (permalink)
Senior Member
 
Join Date: Dec 2015
Location: millington tn
Age: 35
Posts: 684

Ram Year: 2015
Engine: hemi 5.7
Default
cam lobe or bad lifter

tuned by jay greene
shane1981 is offline   Reply With Quote
Old 07-17-2017, 02:23 AM   #3 (permalink)
Senior Member
 
Join Date: Jan 2011
Name: steve
Age: 60
Posts: 2,002

Ram Year: 2016
Engine: hemi 5.7
Default
may have dropped a valve which can take out the cam. far as i know, the only way to be sure is to open up the engine and take a look.
Burla likes this.
huntergreen is offline   Reply With Quote
Old 09-08-2017, 04:05 PM   #4 (permalink)
Junior Member
 
Join Date: Sep 2017
Age: 38
Posts: 1

Ram Year: 2010
Engine: 5.7 Hemi
Default Same Problem here
I have the same issue on my 2010 ram 1500 5.7 Hemi
I have tried: Spark plugs, coil pack, fuel injector, throttle body with throttle position sensor (one part), cam position sensor, intake air temp sensor. And still hesitating from a stop and check engine kicks at about 3000 RPMs.

Let me know if you figure this out and I will do the same. Have it going in for a look in a few days as I have exhausted almost everything I can try.
Wjacobs839 is offline   Reply With Quote
Old 09-10-2017, 11:56 PM   #5 (permalink)
 
Ram Night's Avatar
Senior Member
 
Join Date: Oct 2016
Location: Southwest, michigan
Posts: 212

Ram Year: 2017
Engine: Hemi 5.7
Default
It almost sounds like you have a broken valve spring.
Or a bad solenoid that operates the MDS lifter.


__________________
Sport Night, 5.7-Liter 4X4, Navigation, 3.92 Gears, LSD, Access tonneau cover, Black tubular side tubes, HID head light upgrade, XML2 LED fog lights, Oil catch can, Kicker speakers, Splash shields, Hood and bed decals, Bed liner, Body side molding, Tailgate EZ down, Ham radio.
Ram Night is offline   Reply With Quote
Old 09-11-2017, 04:23 PM   #6 (permalink)
Senior Member
 
Join Date: Feb 2016
Location: Annapolis, Md
Age: 54
Posts: 276

Ram Year: 2014 big horn
Engine: Hemi 5.7
Default
Trace the wiring back to the PCM. look carefully for any breaks or chaffing.
Check the connector at the PCM and see if the pin is backed out etc. check from the backside where the wire goes in as well.

keep it simple and eliminate all possibilities before you get inside the engine.
huntergreen likes this.
Rupert is offline   Reply With Quote
Old 09-11-2017, 11:43 PM   #7 (permalink)
Member
 
Join Date: Aug 2017
Posts: 50

Ram Year: 2017
Engine: 6.4 Hemi
Default
If you are able to clear the check engine light, does it come right back on when you start the truck? If does then, that is most likely and electrical problem. By reading everything you said you have done, it sounds like a mechanical skip, unfortunately. I would do a compression test. What does the noise exactly sound like?
Dodge4x4810 is offline   Reply With Quote
Old 09-12-2017, 01:34 AM   #8 (permalink)
Junior Member
 
Join Date: Apr 2017
Age: 26
Posts: 2

Ram Year: 2012
Engine: Hemi 5.7
Default
Sorry I haven't updated guys but turns out it was a bad lifter and it messed up the cam...I had all lifters and cam replaced

I was gonna just upgrade the cam and lifters since I had to spend the money but luckily I made a call first and turns out I had 3 months left on warranty...lucky me right lol
huntergreen likes this.
Ghost12 is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
help with misfire [email protected] Engine & Performance 3 09-29-2016 11:34 AM
4.7 misfire on #2/#8 Blue 02 3rd Gen DIY 3 06-13-2016 03:06 PM
CEL: Misfire #7 truckin289 Engine & Performance 9 04-04-2014 09:30 AM
cyl #4 misfire, help cabrio85 Engine & Performance 4 11-18-2013 02:10 PM
misfire cyl 1 and 2.... lleno65 Engine & Performance 2 07-06-2013 07:00 PM

<




GM Truck Forum
Ford Raptor Forum
Chevy Tahoe Forum
Chevy Cobalt Forum
Chevy Camaro Forum
Toyota FJ Cruiser Forum
Ford Truck Forum
88-98 GM Truck Forum
73-87 Gm Truck Forum
Ford Expedition Forum
Chevy Equinox Forum
Chevy Cruze Forum
Jeep Liberty Forum
Jeep Forum
Dodge Ram SRT10 Forum
Chrysler 200 Forum
Scion xD Forum
Scion xB Forum
Dodge Challenger Forum
SRT Forum
Nissan Titan Forum
Buick Enclave Forum
Cadillac Forum
Cadillac XTS Forum