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flyinYFZ

April 17th, 2007 12:25 PM

2000 Express/speedo fluctuates/engine-surges smoothly

New here. Anyone heard of this. Speedometer fluctuates 40-60 mph. Real speed about 55-60. Engine surges faster and slower. Seems to be running smooth. No engine lite. Drove at about 50-55 mph for 35 miles. Idles nice.

Computer? Engine speed sensor ?

Please help !!!

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