Questions & Answers for: Cadillac DeVille throttle plate

...plate and carb air horn) or throttle-body. It might take a few tries before the fuel pump fills the float bowl up on the carb for it to keep running. If the cars has really old stale gas in the tank ...

...throttle plate open and clean carbon off the edges of the throttle plate. put all back together then turn key on for ten seconds then off. do this three times in a row. this should correct the ...

throttle plate with a cloth sprayed with WD40. Turn the throttle plate by pushing it at the top with your fingers and clean the throttle throat behind the plate as best you can. Reassemble the ducting

...throttle plate in the throttlebody. Pull off air intake hose and see if there is a lot of carbon buildup on plate and bore. clean with throttle body cleaner CRC makes a good cleaner that won't ...

...throttle plate also. The junk and gunk is plugging up the air flow past the blade at closed throttle and the idle speed control is running out of authority to open the blade. It just needs a thorough ...

...usually pushes against the throttle plate to increase idle speed most idle motors (stepper motors) where phased out and was never used on port fuel injected engines chances are you have an IAC ...

...fast Could be a dirty throttle body, faulty idle speed control motor, or vac leak. The computer controls idle speed by opening the throttle plate much like you would with your foot on the gas

...throttle plate is likely coated with carbon and gunk. A good throttle body cleaning is what should fix this for you. Frist check your gas pedal cables for damage or ruptured if not check all springs ...

What causes the throttle body to chatter when key is activated? This condition last for approx. about 8 to 10 second then stops. It will also start this as soon as key is turned off for the same time ...

throttle plate first . I wouldn't just change the IAC valve without testing , hooking up a scan tool that show engine data. A few different thing's could cause high idle .The idea is to test all thing