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  1. C

    '99 Yukon engine shaking & losing power

    I am going to try and get the cap and rotor changed out this weekend. So far i have changed plugs, wires, fuel filter, ICM and did not help. I did an ignition test, and everything seemed to be firing. After changing the ICM, it seemed to run slightly better, but that could have just been my...
  2. C

    '99 Yukon engine shaking & losing power

    Not yet. I got really busy with work and the holiday coming up and have not had time to work on it more. I talked with someone that said they had the same problem, and they said it was their ignition coil. I am going to try and run an ignition test today to verify that. Hopefully it is not too...
  3. C

    '99 Yukon engine shaking & losing power

    Cleaned the MAF sensor. It definitely needed it, but did not solve my problem.
  4. C

    '99 Yukon engine shaking & losing power

    I am contemplating changing out the distributor, rotor and cps. I have read about a lot of people with this problem doing that and it fixed it. Other than starting to change out every other friggin' sensor on this thing, I am not sure what else to do.
  5. C

    '99 Yukon engine shaking & losing power

    I did not think it would be the fuel pump either, but a couple people have said it could be that. It does not shake will sitting in my drive way. I ran it up to 2500, and I felt a very, very faint vibration. I will clean off the MAF sensor and see what happens. There is one important thing I...
  6. C

    '99 Yukon engine shaking & losing power

    Do I have to take off the fuel spider? I had someone tell me that the fuel system on these things was pretty crappy. They said that if I am lucky it is just the fuel pump. Not sure if it is worth spending that kind of money on this.
  7. C

    '99 Yukon engine shaking & losing power

    What will I be looking for, a spark? It was running bad before I changed the wires also.
  8. C

    '99 Yukon engine shaking & losing power

    Well, I finally had a chance to change my fuel filter. Unfortunately, while it does run a bit better, the vibration is still there. I am wondering if it is an injector. Is that hard to change, or should I have a mechanic do that?
  9. C

    '99 Yukon engine shaking & losing power

    I have only owned this Yukon for two years. I have not changed it in that time, and am not sure it was changed anytime before then. When I did the tune-up, the plugs and wires looked original, so I assume the fuel filter is as well. I thought about changing that, as I figured it could lead to...
  10. C

    '99 Yukon engine shaking & losing power

    I have a '99 Yukon SLT 4X4 with about 121,775 miles on it. The engine has started to shake rather noticeably around 50 - 60 mph. It is worse when going uphill and loses a lot of power. I then started getting the P0300 code for random/multiple misfires. I changed the spark plugs and wires, it did...

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