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Old 09-11-2001, 12:22 AM
Dennis Taylor
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420 SEL Timing

M.B.DOC

I added a new shim a got the clearance correct but no improvement in operation. The idle surges from 200 - 300 Rpm to 1000 Rpm where it smoothes out and then repeats the pattern but not always cyclical.

Does the CD for the 126 cover the 4.2L engine? I have the paper manuals but not the engine manual. Would be nice to have a troubleshooting "tree" to work thru.

Thanks,
Dennis
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