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  1. #1

    Exclamation Sparkplug question!

    Hi I have a '02 Silverado and I replaced my sparklplugs.
    I installed bosch sparkplugs..
    and since then I've been having problems..
    Took it to the shop and my truck is miss firing from Cylinder 2 & 7...
    But,the machanic told me that it's not miss firing to the point were it can be the injectors..
    But, i do knw that one of my ignition coils is bad which im going to replace...
    But, I was wondering if any of you guys have used E3 Sparkplugs in your trucks?
    Let me know if their any good with chevy's...
    Cause I don't know if to put E3 or just go with AcDelco Iridium...
    Let me know what you guys think..
    ~~Aztec Car Club~~

  2. #2
    Sr. Mechanic sc99z71's Avatar
    Join Date
    Feb 2007
    Location
    Moncks Corner, SC
    Posts
    160

    Default

    Go with the AC Delcos!! I tried to put on other spark plugs and the truck ran like total crap, I went and got AC Delcos and put them in and she ran like brand new. I have been told that these trucks like original stuff.
    99 Silverado 1500 Z71
    5.3L 4L60E Tranny
    TransGo Shift Kit
    2.5" Rough Country
    Suspension Lift
    33" BF Good A/T
    Cherry Bomb Turbo
    Cobra CB w/
    Dual Fiberglass Antennas

    01 Kawasaki KLR650

  3. #3

    Default

    x2....On going with A/C Delco Iridium Spark Plugs!!!!

    MIKE


    99"SILVERADO
    5.3 l 3.73 l G80
    BLACK BEAR CUSTOM TUNE
    SNUGTOP l COLORMATCH l KATZKIN










  4. #4

    Default

    I had good luck with the E3's on my '06 Z71 but then I put them in my '00 Z71 & I didnt really see a difference.

  5. #5

    Cool sparkplug questions

    X3 on the A/C Delcos. Use what the factory recommends. Also if you still have your old plugs, try reinstalling them and see if you problems go away.

  6. #6

    Default

    I would do that but I broke them when I took them off...lol

  7. #7

    Cool sparkplug questions

    In the past there been other people on this site that had issues after installing other than factory type plugs.

  8. #8

    Default

    Quote Originally Posted by sc99z71 View Post
    Go with the AC Delcos!! I tried to put on other spark plugs and the truck ran like total crap, I went and got AC Delcos and put them in and she ran like brand new. I have been told that these trucks like original stuff.

    X4 Delco's or NGK's IMO

    '96 K1500, 5.7
    6" RCD
    35" Toyo M/T On 16" Black Raceline Raptors
    4.56 Yukon Gears w/ TruTrac Rear
    S&B CAI
    Dual Flowmaster 40's
    Camo Wet Okoles
    Line-X Bedliner
    De-Badged


    NW BlackDiamond Edition

  9. #9

    Default

    yeah i installed pulstar plugs on mine and after 3 days one of the wires started shorting out on the intake mainfold. it was missing on that cylinder every once in a while when i started noticing it. might have to go back to oem
    ROTARYENGINEPETE
    '07 GMC SIERRA SLT | Z71 | 4X4 | 5.3L FF

    LIFT:
    ROUGH COUNTRY 3" PREMIUM SUSPENSION LIFT + ADD-A-LEAF
    18" ATX THUG WHEELS
    33" NITTO TRAIL GRAPPLER TIRES
    EBC SPORT ROTORS
    EBC YELLOW STUFF BRAKE PADS
    LIGHTING:
    HELLA/VVME 4300K HID LOW BEAMS

    HELLA BLACK MAGIC OFFROAD LIGHTS
    ANZO USA PROJECTORS HEADLIGHTS
    ANZO USA LED TAIL LIGHTS
    ENGINE:
    K&N 63 SERIES INTAKE
    MAGNAFLOW CATBACK D.O.S.I.F.T. EXHAUST
    BULLYDOG TRIPLE DOG GT TUNER

    PULSTAR IGNITORS
    OPTIMA RED TOP
    DRIVETRAIN:
    YUKON 4.56 GEARS
    MAG-HYTEC DIFF COVER
    CORVETTE SERVO
    TRANSGO SHIFT KIT
    Z-PACK 3-4 CLUTCH
    REBUILT WARN XFER CASE
    BODY:
    RUNCOOL HOOD LOUVERS
    FULL WEATHERTECH VISORS/BUGSHIELDS
    DUPONT BEDLINER

    DEEZEE BLACK DIAMOND PLATE BED CAPS
    BULLDOG LOCKING SPORT FUEL DOOR
    DOOR MOLDINGS REMOVED
    CUSTOM WIRE MESH GRILL
    BUSHWACKER BOSS FENDER FLARES
    CB THRU GLASS RADIO ANTENNA

    5.5sec 0-60mph on pavement (5.2sec running E85), and a little less in 3 feet of muddy water

  10. #10

    Default

    Im about to do a tune up on my 02 Sierra aswell, I have been told not to use anything but original AC Delco plugs to avoid problems

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