2001 Buick Lesabre Engine misses when going up slight incli

2001 BUICK LESABRE
100,000 MILES • 6 CYL • FWD • AUTOMATIC
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JRYDBERG
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My Buick is "missing" when going up inclines, and is recently starting to run a bit rough when first started. Any ideas? I'm due for a tuneup at 100,000 miles. I thought to change plugs/wires. ?
Nov 14, 2009 at 8:16 AM
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SERVICE WRITER
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Certainly start off with getting any maintence things like plugs, wires, intake and throttle bore cleaning, fuel filter etc. done first.

IF still present, install and run a fuel pressure gauge up to the windsheild so you can monitor the pressure to verify or eliminate fuel pressure loss.
Nov 14, 2009 at 8:27 AM
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