how many miles for 2002 Buick LeSabre engine turn up
tune=up? ..i turned the sparkplugs at 45k miles and re-gapped. new pcv-valve. and in 6 years, new coolant & hoses.
your car has a common issue of plug usage. i have a 97 lesabre with a 5.3l. even when i had the 3.8l i did full plugs and wires at around 40-60k depending on the performance. also if i were you, id check the coolant elbows to see if they are leaking. if they are, autozone, o'reillys, and advance auto sell alluminum elbows as permanent fixes. all the 3.8l have tuning issues. after all, it was gm's fix for emissions in fwd cars.
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