When stock I never had it on My 2005 H2. Now with all the upgrades all I hear is a big tornado sucking air.
It can be vacuum related as some vacumm lines are hooked up to where rpm's can change how much vacumm it has. Like on a boost gauge uses vacumm in the intake manifold and My Keene Bell boost a pump uses vacum as well. It allows increased fuel pressure by adjusting the vacumm switch. Not directly pulling more fuel but, how it reads pressure and increase the electrical output like a reostat.
It could be a vacum line doing it. KenP is correct. I never had it so I wish I could be more help.
TAZ
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05 H2 SUV cus. paint, Magnuson SC 6/12lb boost, cowl hood scoop, 12" dash touchscreen, GM elec. fans, HPTuners.com tuning soft., Dynatech headers dual catback exhaust Jet Hot chrome front to back Flowmaster Super 40's, Diamo 8 Karat rims & 325X60-20" Toyo, 4 OEM Captain seats Katzkins leather, rear console computer inside running all AV/NAV etc., Infinity component system 3 amps Tsunami Caps, rear flip down 12" monitor, headrest monitors, overhead console boost, fuel pressure, & A/F ratio gauges
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08-23-2005, 12:19 AM
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