Help me fix my truck, please...

Discussion in 'Trucks and Trailers' started by bcg, Apr 4, 2005.

  1. bcg

    bcg LawnSite Bronze Member
    from Tx
    Messages: 1,865

    I've got a '99 Ranger 4x4 with the 4.0L V6. Sunday it started idling kinda or rough (almost dieseling) and had some hesitation in acceleration. Just a little after that started, the Check Engine light came on so I took it to Autozone to pull the codes. Computer says it's missing on cylinder 5. I had this problem not long ago with cylinder 4 so I replaced the plug and wire (I'd done them all at about 70k, truck now has 107k) and it didn't help at all. back to Autozone, same error (after running it a while to see if it would clear) so I replace the coil pack, still no joy. I don't know what to try now. Anybody got any suggestions?

  2. lawnandplow42

    lawnandplow42 LawnSite Senior Member
    Messages: 508

    could it be a distibuter problem?

    Are you sure its electrical?
  3. bcg

    bcg LawnSite Bronze Member
    from Tx
    Messages: 1,865

    There's no distibutor on this one. I'm afraid it might be an injector but I'm hoping that someone can give me some other answers.
  4. PLM-1

    PLM-1 LawnSite Bronze Member
    Messages: 1,640

    Try running fuel injector cleaner through it. it may be clogged. I would try that a few times before changing fuel injectors.
  5. riches139

    riches139 LawnSite Senior Member
    Messages: 369

    Vacume leak?
  6. John Gamba

    John Gamba LawnSite Fanatic
    from ct
    Messages: 10,812

    Have a garage do a systems check.

  7. Residential Recreation

    Residential Recreation LawnSite Member
    Messages: 74

    what made you think it was the coil pack? and yes it does have a distrubetor its electric. power distribution system. buy a chiltons. there could be many reasons why your #5 cyl isnt firing. do you know the hillbilly way to see if its gettin spark screwdriver cable ground. so on so fourth. it might be the injector or it could be a computer problem. are you burnin oil does it smell sweet at times. blown gasket. crank shaft misaligned.
  8. cndhaines

    cndhaines LawnSite Member
    Messages: 31

    switch #5 spark plug with another cylander it could be a cracked plug, get u a good pair of insulated pliars and while the truck is runninng pull off the spark plug wire to #5 do u hear a change in idle.if u hear a chnage its no longer missing on that cylander. if no change then its still there, then see if u have a buddy with a compression gauge, if u have atleast 100 lbs start looking at injectors.

  9. sheshovel

    sheshovel LawnSite Fanatic
    Messages: 5,112

    I agree ,I just had a tiny cracked vacumme line and you'da thought the engine was gonna fall out!!Cost to fix?$1.99 Cost of knowing how to fix invaluable.
  10. sheshovel

    sheshovel LawnSite Fanatic
    Messages: 5,112

    Could also be your plug wires are melting thru in spots causing arc cuz they are up against the hot manifold or heads.They shouldent be touching anything or each other.

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