Hello
I have a simple 2011 Ford Edge that after replacing the spark plugs, it draws air from the manifold and the engine draws less air. The mechanic said the problem might be with the throttle valve and he still hasn't been able to fix the problem. The main problem is that the engine runs at idle and makes a hissing sound every few seconds and the engine runs poorly. It seems like the car is short of breath and the hissing sound gets louder when you give it gas.
Please help me, what should I do?
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