Stumbling, shaking and loss of power. 99 EB

[sleepygurrrrl]

My new baby ran awesome. Glass Packs, powerful and just awesome. Then all the sudden I noticed that it was slipping/stumbling as I accelerated. The power is 50% of what it was. I read something on here about the OD, so I did notice that when I turn it off, it's smoother around town. Waiting to use my Pa's code readers, but I'm thinking TPS? Transmission fluid is clean and at the appropriate level. As are the rest of the fluids. I just want that badass power back and to know that my beloved, coveted vehicle is gonna pull through!!!

 

[sleepygurrrrl]

ANYBODY? I can see you....

 

[EXPI2000]

This guy seems to be having same or similar issues but here is a good starting point.

http://www.expeditionforum.com/showthread.php?t=19841



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[Ward]

I am having pretty much the exact same issue on my 99 EB. Right now I'm leaning towards it being either a faulty coil, plug, or combination of both. I'm going to replace all 8 coils and plugs this evening, I would suggest replacing yours as well.

 

[mrazndead]

COP, SparkPlug, start with reading code,

 

[sleepygurrrrl]

Not the coils....I had a Grand Am that chewed them up and spit them out. Please not the coils.

 

[sleepygurrrrl]

I did a fuel injection cleaner before i filled my tank last, using a higher grade gasoline. The improvement was incredible. Though the ultimate test will be the giant hill I have to come up from town, but hopefully it was just bad gas my no-no of letting the tank get to low. To quote my brother, also my mechanic. "Never let it get below a quarter of a tank!!" Thanks guys!!