Thread: AL 104 spark plug showing misfires...

Results 1 to 9 of 9
  1. #1 AL 104 spark plug showing misfires... 
    GT Level Member
    Join Date
    Apr 2011
    Location
    sudbury
    Posts
    211
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    decided to try the Al 104 back into my car and the aeroforce shows "2" misfires on a few cylinders now and then.... is that normal? there brand new plugs . had 0 misfire with stock ac delco .....that how i know its plugs....
    Reply With Quote  
     

  2. #2 Re: AL 104 spark plug showing misfires... 
    Perma-Banned! JK LOL Explicit_Spade's Avatar
    Join Date
    Dec 2007
    Location
    Omaha, NE
    Posts
    7,921
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    What's the gap on the 104s?
    Quote Originally Posted by W-Body Store
    Remember, GM engineers didn't take into account your need for speed.
    Daily Driver: 06 Grand Prix GT / 9.4:1 CR / IS3 Heads / Ported Gen V / ZZP Headers / HPT Pro / Pulleys: 4.25, 3.8, 3.5, 3.4, 3.2, 3.0, 2.9, 2.7
    Projects: 86 Monte Carlo SS / 98 Sonoma / 74 Honda CB750
    Reply With Quote  
     

  3. #3 Re: AL 104 spark plug showing misfires... 
    GXP Level Member txslow6's Avatar
    Join Date
    Oct 2010
    Location
    Texas
    Posts
    2,652
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Pull the two plugs. I have a feeling that one of those will probably be cylinder 6. Not uncommon to accidentally crack the porcelain on the plug. Also double check to make sure your wires are snug and they "snapped" in place.
    85 Corvette
    01 TA
    03 Z06
    Reply With Quote  
     

  4. #4 Re: AL 104 spark plug showing misfires... 
    GT Level Member
    Join Date
    Apr 2011
    Location
    sudbury
    Posts
    211
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Gap at 53. Tgou and no they arent cracked and rubbers snapped on good
    Reply With Quote  
     

  5. #5 Re: AL 104 spark plug showing misfires... 
    DUI BABY Bio248's Avatar
    Join Date
    Jan 2008
    Location
    MILWAUKEE
    Posts
    31,340
    Thanks (Received)
    0
    Likes (Received)
    1
    Dislikes (Received)
    0
    random misfiring is a 3800 staple. it happens even on healthy stock motors.

    im assuming this is at idle?
    Reply With Quote  
     

  6. #6 Re: AL 104 spark plug showing misfires... 
    GT Level Member
    Join Date
    Apr 2011
    Location
    sudbury
    Posts
    211
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Yes on idle . Ive been running the plugs for a few hrs now and its getting better.
    Reply With Quote  
     

  7. #7 Re: AL 104 spark plug showing misfires... 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
    Join Date
    Sep 2009
    Location
    Rogers, MN
    Posts
    21,022
    Thanks (Received)
    21
    Likes (Received)
    45
    Dislikes (Received)
    0
    modded 3800's LOVE to misfire at idle.

    SMGPFC Member #1
    Reply With Quote  
     

  8. #8 Re: AL 104 spark plug showing misfires... 
    I live here. SlowNA06's Avatar
    Join Date
    Mar 2010
    Location
    Pennsylvania
    Posts
    5,928
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Would having spark plugs 2 ranges colder than you should cause misfires?
    Irridium spark plugs last 100k mi and work just as well as copper. Copper is a waste on N/A and only lasts 15k mi. Don't use Platinum.
    Use 195* tstat unless you can thoroughly explain why not; 99.9% don't need a lower temp.
    Almost any oil filter, ever, is of higher quality than ACDelco. Spend $6+.
    Reply With Quote  
     

  9. #9 Re: AL 104 spark plug showing misfires... 
    GT Level Member 94GrandPrixSE's Avatar
    Join Date
    Feb 2011
    Location
    Nebraska
    Posts
    404
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    2 years late, yes
    02 GTP - Cartuning Turbo Kit VS67 3" DP, 80#INJ, N*,LQ4 MAF, Custom Cam, Roller Rockers, 130#, P&P Heads, Meth, AL103's, Corn fed, 522WHP on a mustang dyno, HP Tuners by me.
    Reply With Quote  
     

Similar Threads

  1. Bent plug tips and misfires
    By Knightmare in forum 3.8L V6 Supercharged (L67)(L32)
    Replies: 62
    Last Post: 09-02-2011, 11:45 AM
  2. Spark plug gap
    By SJAndrew in forum 3.8L V6 Supercharged (L67)(L32)
    Replies: 37
    Last Post: 08-09-2011, 01:55 AM
  3. Spark plug gap?
    By 91z in forum General Tech Discussion
    Replies: 1
    Last Post: 04-20-2011, 08:28 PM
  4. Spark plug
    By zildjian102 in forum General Tech Discussion
    Replies: 14
    Last Post: 03-01-2011, 02:48 AM
  5. Spark Plug Help
    By STP5593 in forum 3.8L V6 Supercharged (L67)(L32)
    Replies: 8
    Last Post: 02-25-2010, 10:15 PM
Tags for this Thread

View Tag Cloud

Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •