Spontaneous shaking

Discussion in 'Engine & Performance' started by Bee89, May 15, 2012.

  1. Darth Bama

    Darth Bama Administator Staff Member

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    That's where I'm at too! :jester:

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    I would have 20k less had I not drove it back and forth to work for a year back in 06-07. I had a 110 mile round trip back then. I burned thru a set of tires that same year. Luckily me and the wife commuted back and forth later on. I parked the 150 and it's been parked for the most part ever since. Longest trip it's made in those 4 years has been to Alabama one time for a funeral.



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    Last edited: May 16, 2012
  2. Raevsky97

    Raevsky97 bagged 97 f150

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    haha im at 189,000 and never had shaking :birgits_tiredcoffee
     
  3. Bee89

    Bee89 Super Moderator

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    yeah yeah yeah rub it in zach lol



    Oh and weirdest thing, my battery voltage usually hang out at around 14.5 and 15. Last night it was bouncing between 13 and 13.5. Then this morning it was back up to normal. The battery is brand new, would this have any significance?
     
  4. Darth Bama

    Darth Bama Administator Staff Member

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    :hmm:
     
  5. Raevsky97

    Raevsky97 bagged 97 f150

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    well if its shaking would it not change the rpms and slow the alternator down? because its still obviously above 12vs meaning its charging :poker:
     
  6. Bee89

    Bee89 Super Moderator

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    it wasnt shaking last night, the voltage was just lower than usual. The rpms were fine too. The shaking happened earlier in the day right before i posted this thread.
     
  7. Raevsky97

    Raevsky97 bagged 97 f150

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    did you have your headlights on and ur sound system and everythign electronic? alot of pepole dont notice the voltage actually dropped when they turn all there accesories on


    just asking not sure if you are one of them\
     
  8. VanoFord

    VanoFord Banned

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    i dont think its a COP. when those go out (1 of mine did) the truck still runs, but doesnt shake unless you are on the throttle. if the shaking occured while on throttle, then yes, COP. they arent cheap to replace though, so figuring out which one is going bad would be helpful.

    also, make sure that all the COPs are on snug. if they loosen, it degrades the spark and will feel just as if the COP is bad. Some other issues: bad air filter, need for tune-up.
     
  9. Bee89

    Bee89 Super Moderator

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    I know the voltage drops when everything is on but last night the only thing on were my headlights, ac and radio were off.

    it might not be related just something i noticed, it was causing the edge screen to dim and brighten a little too. Minimal change in screen brightness but enough to where i noticed.
     
  10. Raevsky97

    Raevsky97 bagged 97 f150

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    coil went out on aurora last week..... shook like helll at idle and smooth out a little on throttle was not firing at all on 2 or 5 had a scan tool found that cylinders 2 and 5 where not firing looked at the coil the labels matched replaced it problem solved
     

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