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Are your tires properly inflated? If they are underinflated, then put more air in the tires so rolling resistance reduces therefore improving fuel-economy. I usually get around 20 mpg on the highway with a 5.3 V8 engineReport it
Allie- With the sensors.....the Stab-Trk lights .......have them reroute the wires b/c they are too tight :D There's too much tension on the wires and it's enough to give it a hissy fit all the time. I've owned my 2006 Trailblazer less than a month and I've been back to the dealer a bunch. This rerouting of the wires and relieving the tension/pull on them, has kept the light off for several days now. Our check engine light kept coming on for "misfires" and it was 1,2, and number 6 cyclinders that were dirty.......#6 is still giving us trouble but a STRONG fuel injection cleaner and engine cleaner is a good choice. My light would stay on 99% of the time, and just last night it flashed.......only to be reset then back on again........which we know is the misfire and is being worked on. Hope this helps!Report it
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