Better gas mileage
That answer is even in the owners manual, 2HI for the best possible fuel mileage.
tune-up, replace the filters...mind the PVC Elbow~ (should rattle)~ new plugs and possibly ignition wires too...there is a "wand" that tells high voltage leakage~
4x4 suburban and efficent shouldn't be in the same sentence
time the engine HOT and disconnecting the vacuum advance, adjust so the engine will almost knock possibly 5 or 6 degrees btc~ attach the vacuum advance...this will be the most "bang for the buck" you could possibly get~
Whoa there Bob, it's an 01, there is no vacuum advance, it's all computer controlled.
guess this is OLDE Tyme history...please disregard anythin' I say...am here just to SHOW....my damned art to the world...some say there are some picasso elements...Fabrizio De Silvestri has about 5 of them on display IN Italy!~ have paintings all over this town and each of my friends and relatives homes...frankly am flattered at this opportunity for you all to see my work~
...and still cars are basically the same~
Looking for a Used Suburban in your area?
CarGurus has 22,715 nationwide Suburban listings starting at $1,999.
Search Chevrolet Suburban Questions
Chevrolet Suburban Experts