I have a 1999 Chevy Lumina 3.1 v6 and died out yesterday and then start again 2 days ago I had a buzzing sound coming from the throttle positioning sensor or the ICA sensor

Asked by Feb 27, 2014 at 08:11 PM about the 1999 Chevrolet Lumina 4 Dr LS Sedan

Question type: Maintenance & Repair

it's getting gas when I started I put the
pedal down all the way and it barely
stay runnin barely out and it backfired

3 Answers

36,685

Take off your air intake hose to the throttle body. Spray carb cleaner into the Idle Air Control Valve. See if that makes a difference. Here's a short video. Different car, but same idea. http://www.youtube.com/watch?v=i82s4ZfR2js

5 out of 5 people think this is helpful.

thanks for your answer is there anyway I could test the sensors throttle positioning sensor Or the ICA sensor

36,685

Here's a short video on how to test your Throttle Position Sensor. http://www.youtube.com/watch?v=1KEd52QJMNc Here's the test for the IAC valve. http://www.youtube.com/watch?v=j9tUcS7Y3Qw The IAC valve test only will tell you that it has power to it. Won't tell you if it's plugged.

1 out of 1 people think this is helpful.

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