Strange power loss

Lincoln LS

  1. Corberg71

    Corberg71 New LVC Member

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    Hello, I’m brand new to the forum and was looking for some advise with my 01 LS V8. So when I take off from a stop and give a some more throttle than normal the car falls on it’s face. Cuts out and sounds terrible. I’m don’t know these cars that well. So any help would be greatly appreciated
     
  2. joegr

    joegr Dedicated LVC Member

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    Well, the first thought is always marginal COPs. However, it could be something else. Is your check engine light on? The first step is to pull any and all DTCs (Diagnostic Trouble Codes) from the car using a Ford specific scan tool. The lowest cost one that I know of is Forscan, but there are several others too.
     
  3. Corberg71

    Corberg71 New LVC Member

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    Ok thanks for the info I’ll check that out
     
  4. Michaelait

    Michaelait LVC Member

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    Yes, new COPS and plugs. On an LS they must be pristine.
     
  5. Corberg71

    Corberg71 New LVC Member

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    The coils are somewhere around $350-$400 aren’t they?
     
  6. joegr

    joegr Dedicated LVC Member

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    Yes.
     
  7. Corberg71

    Corberg71 New LVC Member

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    So I replaced the coils with OEM Motorcraft coils and plugs. I still have the same problem. One thing I noticed is the traction device light is on all the time. Would that possibly have something to do with my power loss?
     
  8. joegr

    joegr Dedicated LVC Member

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    Yes, it could be related. Are there any other conditions/symptoms/warning lights that you haven't mentioned?
     
  9. Corberg71

    Corberg71 New LVC Member

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    Yes actually when I’ put my foot into it a little it’s kinda falls on it’s face. Also it sometimes has a rotten eggs smell
     
  10. joegr

    joegr Dedicated LVC Member

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    Oh well, then I think we have the answer. Clogged catalytic converters, probably caused be prior misfires from bad coils.
    You can unscrew the forward two O2 sensors (temporarily) and take a test drive and see if the power loss is much better. What you are doing is relieving exhaust back pressure by letting exhaust escape from the holes that the O2 sensors are normally in.
     
  11. Corberg71

    Corberg71 New LVC Member

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    Thank you very much. You’ve been a huge help
     
  12. NorCalNorse

    NorCalNorse New LVC Member

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    I replaced my coils about a year ago and found a full set of 8 for only around $90.00 on line. Years ago they were VERY expensive. But now you can find great deals online. My thought is that there were a lot made of these particular styles at one time, and now sit in inventory since they are not sold as much as they used to and are obsolete (meaning newer cars use newer coil designs etc) thus the good deals available.
     
    • Disagree Disagree x 1
    • joegr

      joegr Dedicated LVC Member

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      You can get them for cheaper than that, but you shouldn't. You could cost yourself some very expensive catalytic converters due to the marginal nature of the cheap coils. So far, the only safe bet we have found for coils is the $50 (each) Motorcraft coils. The last set I bought has gone well over a 100K miles, so it seems like they have finally fixed the epoxy problem.
       
    • NorCalNorse

      NorCalNorse New LVC Member

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      Well thats good knowledge to have! I would never have thought about - I figured a coil is a coil and would not have thought about the effects bad ones could have on the catalytic converter. Now i wish I could go back and see what brand I bought - I think I bought them through 1aauto.com. Ill pay close attention next time I have to buy them!
       
    • joegr

      joegr Dedicated LVC Member

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      Check out some of the coil threads on here. Some have been okay with aftermarket, for a while, but others have not.
       

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