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I changed my spark plugs and ignition coils a few days ago and I’m sure I did everything correctly , but after I put everything back together and started the car the rpm was up around 4000 . Idk if I touched the throttle body cable or something because it is slightly opened and I can’t figure out how to readjust the cables , I’ve watched videos but they don’t look exactly like my cables . I have an 08 mercury mariner

Pᴀᴜʟsᴛᴇʀ2
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Kareem Bright
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1 Answers1

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I'm not familiar with this car, but perhaps check the Idle Air Control Valve and the vacuum lines and wiring around it. You may have bumped a wire or hose lose or there may be a split in a vacuum line.

MeltingDog
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