DODGE RAM FORUM - Ram Forums and Owners Club! - Dodge Truck Forum

Go Back   DODGE RAM FORUM - Ram Forums and Owners Club! - Dodge Truck Forum > Dodge Ram Forum - Help Zone - Dodge Ram Problems, Complaints, & Solutions - Maintenance & Re > 2ND Generation Dodge Ram 1994 to 2001 Dodge Ram Trucks > Powertrain > 5.9L V8 Specific Topics


Notices


Latest Vendor News
AutoAnything
Addictive Desert Designs!
United Radio
Bayou Goat Mounts

Reply
 
Thread Tools
  #1  
Old 11-08-2010, 12:54 PM
itsaRAMthing itsaRAMthing is offline
Dodge Ram Forum Newcomer
 
Join Date: Nov 2010
Posts: 3
Gender: Male
Engine: 1994-1997 360ci (5.9L) Magnum V8 230hp
Rep Power: 0
Rep:10
itsaRAMthing is on a distinguished road
Unhappy Cylinder 5 misfire, and now cylinder 8 and a random misfire... suggestions?

Here's the skinny...
5.9L with about 158K miles on the engine. I had been getting a cylinder 5 misfire and random misfire so I swapped out the plugs (some of which looked like they had been HOT), wires (two were badly corroded), and distributor cap and rotator (bot in bad shape). The misfire codes went away for all of 15 or 20 mins. This is what I'm getting now:

P0305 Cylinder 5 Misfire Detected
FF:
Fuel Sys 1: CL
Fuel Sys 2: CL-Fault
Calc Load: 29.41%
ECT: 96F
STFT B1: 0.00%
LTFT B1: 2.34%
MAP: 4.43inHg
Eng RPM: 832
Veh speed: 26mph

P0300 Random Misfire Detected
FF: None

P0308 Cylinder 8 Misfire Detected
FF: None

So, I was thinking this could be the #5 fuel injector, but now that the random misfire has returned, I'm not so sure... I'm going to pull the injectors and plugs to see if they are burned up or anything is fowled, but I'm fairly certain its not the manifold gasket leaking by... any suggestions? I don't know what that Fuel Sys 2 is, but it's making my pocket book nervous...

thanks for the help in advance...
Reply With Quote
Sponsored links
  #2  
Old 11-08-2010, 01:04 PM
RamTech's Avatar
RamTech RamTech is offline
Dodge Ram Forum Senior Member!

 
Join Date: Nov 2009
Location: Johnson City, TN
Age: 44
Posts: 12,120
Gender: Male
Vehicle: 2004 Dakota Club Cab 4X4
Trim Level: SXT
Color: Bright Silver
Engine: 2002-2008 226ci (3.7L) Magnum/PowerTech V6 215hp 235lb/ft
Rep Power: 15
Rep:1824
RamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant future
Default

What was the throttle position when the code set? Have you checked the plug condition? Oil fouled plugs would cause a misfire and being those two cylinders are toward the rear making them prone to oil fouling from a leaking plenum pan gasket. What about the rest of the secondary ignition system?
Reply With Quote
  #3  
Old 11-08-2010, 10:42 PM
itsaRAMthing itsaRAMthing is offline
Dodge Ram Forum Newcomer
 
Join Date: Nov 2010
Posts: 3
Gender: Male
Engine: 1994-1997 360ci (5.9L) Magnum V8 230hp
Rep Power: 0
Rep:10
itsaRAMthing is on a distinguished road
Default RE:

Quote:
Originally Posted by RamTech View Post
What was the throttle position when the code set? Have you checked the plug condition? Oil fouled plugs would cause a misfire and being those two cylinders are toward the rear making them prone to oil fouling from a leaking plenum pan gasket. What about the rest of the secondary ignition system?
Throttle position: I don't have real time data (yet) but I think it was around 35-40%.

I just got done pulling the plugs, injectors, injector rail, and scoping the cylinders and injection manifold. The plugs are clean, no fouling/funny smell/temperature damage. I have ran electrical checks on the ignition system running and off. so far nothing is wrong.

The injectors looked pretty nasty, but they all passed resistance and operational checks. when the injectors open, I get free flow from each of them (I don't have a test stand to see if they have good spray patterns and how well they are flowing at operating pressure though). I took the cylinder 5 injector and put in cylinder 1. I figure if there is a gremlin in there it should show up on cylinder 1 now.

Any ideas on the secondary fuel system? is that the fuel return system?
Reply With Quote
  #4  
Old 11-12-2010, 06:07 PM
itsaRAMthing itsaRAMthing is offline
Dodge Ram Forum Newcomer
 
Join Date: Nov 2010
Posts: 3
Gender: Male
Engine: 1994-1997 360ci (5.9L) Magnum V8 230hp
Rep Power: 0
Rep:10
itsaRAMthing is on a distinguished road
Default

well... Re did the wires and ignition system, cylinder 5 is still missing though. At this point I'm considering the possibility of a cracked head or bad valves. Time for a leakdown test I guess... :-(
Reply With Quote
  #5  
Old 11-12-2010, 06:18 PM
RamTech's Avatar
RamTech RamTech is offline
Dodge Ram Forum Senior Member!

 
Join Date: Nov 2009
Location: Johnson City, TN
Age: 44
Posts: 12,120
Gender: Male
Vehicle: 2004 Dakota Club Cab 4X4
Trim Level: SXT
Color: Bright Silver
Engine: 2002-2008 226ci (3.7L) Magnum/PowerTech V6 215hp 235lb/ft
Rep Power: 15
Rep:1824
RamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant future
Default

Check for a broken valve spring too, since it won't show up on a leakdown test.
Reply With Quote
  #6  
Old 06-05-2011, 08:35 AM
shak01 shak01 is offline
Dodge Ram Forum Newcomer
 
Join Date: Jun 2011
Location: New Berlin, Il
Age: 64
Posts: 29
Gender: Male
Vehicle: 1996 Dodge Ram 1500
Color: Emerald Green
Engine: 1994-1997 360ci (5.9L) Magnum V8 230hp
Rep Power: 0
Rep:10
shak01 is on a distinguished road
Default

TSB 18-48-98

Symptoms: some vehicles may exhibit this symptom:
Various single cylinder misfire (1, 3, 7,) ad especially 5 and/or 8
NOTE: This rerouting procedure should be performed before any other misfire, surge, or spark knock repairs are attempted.

http://dodgeram.info/tsb/1998/18-48-98/18-48-98-v8.htm
__________________
Kevin Sharpe shak@att.net
Reply With Quote
Reply

Bookmarks

Tags
check engine light, fuel system, help!, misfire, p0305

Thread Tools

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

Forum Jump


Advertisement






All times are GMT -4. The time now is 11:06 PM.


= Copyright RamForumZ.com a Gigathreads.com Network Site =Ad Management by RedTyger
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
vB.Sponsors


=Gigathreads Network=
CLUBS MOPAR NATION DSM GPMM MAMM JAM
DIESEL Diesel Forum      
CHEVY Chevy Camaro Forum Chevy Volt Forum    
CHRYSLER Chrysler 300C Forum      
DODGE Dodge Avenger Forum Dodge Caliber Forum Dodge Challenger Forum Dodge Charger Forum
  Dodge Circuit Forum Dodge Hornet Forum Dodge Magnum Forum Dodge Nitro Forum
  Dodge Ram Forum Dodge Dakota Forum Dodge Durango Forum Dodge Dart Forum
FORD Ford Raptor Forum Ford F150 Forum Ford F100 Forum  
JEEP Jeep Forum      
PONTIAC Pontiac G8 Forum      
SRT SRT Viper Forum SRT Cuda Forum