...engine. It uses vacuum from the intake manifold on the engine to power the accessories. The vent knob basically is a switch for the vacuum, to give you different positions for your vent/ac/heating ...
...Whenever you push it in, a vacuum leak is introduced. Causing the engine to idle higher. Changing the brake booster will cure the problem. its caused by a leak in the vacuum booster, needs ...
...engine it will run at about 3000rpm .i checked the cables at the carb and the gas.what else could it be pedal Check for vacuum leaks. Check PCV hose and other vacuum hoses. Spray carb cleaner around ...
...engine to draw a vacuum on the EVAP system. At a calibrated time, or vacuum level, the control module turns the EVAP canister purge solenoid valve OFF, sealing the system, and monitors the FTP sensor ...
engine not running (same for wide open throttle) .. if there is a vacuum leak then it will read high at idle .. if the sensor is bad the voltage may not change .. check the cold water temp. sensor and
...BODY. IDLE AIR SENSOR HAVE IT CHECKED. Possible causes are the T.P.S or throttle positioning switch, or a vacuum leak. There are other possible causes for what you describe. Is there an engine
...engine starts it stays high idle, it wont back down. 1996 pontiac sunfire 2.4 over head cam If this happened all of a sudden, It sounds like a Vacuum leak. I would inspect the vacuum hoses for brakes ...
...Engine vacuum leak Short on signal wire to PCM Short on reference voltage wire from PCM Open in ground circuit to MAP Worn engine causing low vacuum Possible Solutions A good way to diagnose if the ...
...vacuum hoses at the engine, make sure no hoses are disconnected, cracked or damaged. Disconnect each hose at the source on the engine and see if the engine idle stabilizes. Let me know what you find ...
...engine timing is ok, then it can only be a fuel problem. You should check the fuel injectors. Ok sounds like you have checked some things Great.If all that is good the only thing left are a vacuum ...
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