2nd Gen Ram Tech 1994-2001 Rams: This section is for TECHNICAL discussions only, that involve the 1994 through 2001 Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.

Weird spark plug problem?

Thread Tools
 
Search this Thread
 
Old Oct 11, 2008 | 01:57 AM
  #1  
Bigdodge98's Avatar
Bigdodge98
Thread Starter
|
Rookie
Joined: Aug 2007
Posts: 81
Likes: 0
Angry Weird spark plug problem?

The #1 cylender sparkplug on my truck burns the ground really bad on this plug to wear the 90 degree part of the plug is all burnt up. The #1 cylender still fired and fires with this bad plug and it misses also if you run the truck with the injector wire off so im getting spark and getting fuel and a injector pulse fuel pressure is 47lbs anyone think it could be a injector problem where it is not getting enough fuel making the ignition too hot?
 
Reply
Old Oct 11, 2008 | 06:38 AM
  #2  
HankL's Avatar
HankL
Champion
Joined: Aug 2005
Posts: 3,313
Likes: 8
Default

Like you say, that does sound strange.

If it were happening on my truck,
I would pull the distributor cap and look at the post for that cylinder too,
and measure the electrical resistance of the ignition wire to that cylinder.
then, if I found nothing unusual I would put a new spark plug in that cylinder,
as defective metal in the ground strap of the old plug could also cause that
pitting and burning of the ground strap.

Dodge has admitted that their orignal arrangement of ignition wires allowed
'cross fire' of one cylinder to another when the wires were too close to one another.
Their 'fix' is a highly unusual arrangement of wires that you can do step by step using these instructions:

http://dodgeram.info/tsb/1998/18-48-98/18-48-98-v8.htm

The first thing to try fuel injector wise,
is to do the simple, cheap and easy first,
so put a bottle of official Chrysler Fuel Injector cleaner (about $7)
in your gasoline with about half a tank so that you mix with no more than about 16 gallons.

It would not hurt after than 16 gallons with the Mopar FI cleaner,
to buy a $10 bottle of Chevron Techron Concentrate Plus (the "Plus" version is important) and add that to the next 16 gallons.

I would not even argue with doing a third mix of 16 gallons with Yamaha Ring Free ($19)

It is very common for the factory fuel injectors to develop deposits at their tips and 'junk' in the catch screens. Many times it takes three bottles of FI cleaner to clear deposits and reduce carbon deposits.

If that does not clear up the problem
then buy at least 16 new o-rings,
pull the fuel injectors and rail,
inspect everything including the little 'catch screens' at the top of the injectors,
and swap the fuel injectors of cylinders 1 and 2
before putting everything back together using the new o-rings with a bit of lubricant on them to prevent damage during the re-install.

If you find rust particles in the catch screens you need to replace the whole fuel line going back to the pump assembly submerged in the tank.

good luck
 
Reply
Old Oct 11, 2008 | 08:43 AM
  #3  
Bigdodge98's Avatar
Bigdodge98
Thread Starter
|
Rookie
Joined: Aug 2007
Posts: 81
Likes: 0
Default

Thanks a lot man im usually pretty good at diagnosing problems but this it one of those times where i had a brain fart and needed someone elses opinion thanks a lot for the help again and ill let you no how it goes
 
Reply
Old Oct 13, 2008 | 11:28 PM
  #4  
Bigdodge98's Avatar
Bigdodge98
Thread Starter
|
Rookie
Joined: Aug 2007
Posts: 81
Likes: 0
Default

well now im back at square one the truck doesnt even run so its kinda hard to diagnose any ideas
 
Reply
Old Oct 13, 2008 | 11:36 PM
  #5  
Keegan's Avatar
Keegan
Professional
Joined: May 2008
Posts: 243
Likes: 1
From: Ontario, Canada
Default

My #1 cylinder is screwed as well!!! lol... I currently have it disconnected, as it knocks badly when the plug is connected. injector and plug wire are unhooked right now and no sound... I'm still not sure where to go from here .
 
Reply
Old Oct 14, 2008 | 01:47 AM
  #6  
Bigdodge98's Avatar
Bigdodge98
Thread Starter
|
Rookie
Joined: Aug 2007
Posts: 81
Likes: 0
Default

yeah mine fires and runs fine i also just found out my fuel pump took a dump so that was the intermitton stalling problem till now where it just quit completly
 
Reply
Old Oct 14, 2008 | 07:20 AM
  #7  
HankL's Avatar
HankL
Champion
Joined: Aug 2005
Posts: 3,313
Likes: 8
Default

i hope in the new 2009 Ram they put a fuel pressure sensor so that the PCM computer can set a trouble code for when the fuel pump is dying

many, many 1994-2004 owners have had to diagnose a dying fuel pump
with no clues from the 'check engine codes'
and it is particularly hard because it will have satisfactory pressure one minute
and drop to near zero the next minute
 
Reply
Old Oct 15, 2008 | 04:40 AM
  #8  
Bigdodge98's Avatar
Bigdodge98
Thread Starter
|
Rookie
Joined: Aug 2007
Posts: 81
Likes: 0
Default

i couldnt agree with you more
 
Reply
Old Oct 15, 2008 | 09:31 PM
  #9  
aim4squirrels's Avatar
aim4squirrels
Legend
Joined: Jul 2007
Posts: 7,843
Likes: 13
From: DFW, Texas
Default

Originally Posted by Keegan
My #1 cylinder is screwed as well!!! lol... I currently have it disconnected, as it knocks badly when the plug is connected. injector and plug wire are unhooked right now and no sound... I'm still not sure where to go from here .
That almost sounds like the incorrect plug wire on the spark plug or the distributor cap. Retrace all your wires from the distributor to the plugs.
 
Reply
Old Oct 16, 2008 | 01:46 AM
  #10  
Bigdodge98's Avatar
Bigdodge98
Thread Starter
|
Rookie
Joined: Aug 2007
Posts: 81
Likes: 0
Default

i think it sounds like hes got a rod knock and it goes away when he disconects the plug wire
 
Reply



All times are GMT -4. The time now is 03:40 PM.