2002 Chevy Silverado Wiring Diagram

This could be an airleak after the airflow meter, any ventilate dragged in here isn t seen by the ECU and correspondingly not compensated for and can thin the engine out and can after that allow the engine to rev taking place taking into consideration not desired causing severe running. As its a mechanical aberration it tends not to direction upon the irregularity vivacious and you can sometimes hear a hissing noise as soon as the engine running.

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I started the car going on this morning, it starts stirring and runs at 1750 and within a minute or appropriately climbs exceeding 2500.. It is government serene though, just artifice complex than it should be. I as a consequence checked the throttle screw plate/return screw, intentionally turned it out and nothing changed. put it back to exactly where it was. No vacuum leak sounds and every connections verified. I setting fine about them as I've been in there a bunch of times..

This could be a large vacuum leak ,with the MAF linked it is unaided measuring the let breathe that is getting bearing in mind the MAF, fittingly if the intake manifold is sucking in air the let breathe to fuel ratio will be utterly out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. once carb cleaner vaporizer spray in the place of the hissing gone the engine presidency and past you hear the engine stall or rev highly developed there is the leak ,could be a bad vacuum hose bad gasket on the manifold.

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