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2007 f150 4x4 with 5.4L motor idles rough only when a/c is…

Customer Question
2007 f150 4x4 with...

2007 f150 4x4 with 5.4L motor idles rough only when a/c is on.

Mechanic's Assistant: Is the rough idle intermittent or consistent?

Intermittent

Mechanic's Assistant: Are you fixing your F150 yourself? What have you tried so far?

Last Friday had a/c place here in town look at it and, of course it wouldn't idle roughly. Didn't charge me but happened again today. Idles rough enough that I turn a/c off at stop light because idle is so rough.

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

Had plugs replaced at 75,000 miles.

Submitted: 1 year ago.Category: Ford
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Answered in 5 minutes by:
9/12/2017
Ford Mechanic: EricFromCT, Ford Technician replied 1 year ago
EricFromCT
EricFromCT, Ford Technician
Category: Ford
Satisfied Customers: 4,827
Experience: 20 years dealership exp., ASE A1-A9 L1 L2, Ford Lincoln Mercury Senior Master, Diesel Certified
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Hi. Welcome to chat! My name is ***** ***** I am currently a factory dealer auto mechanic. I will attempt to assist you with your concern today.

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Ford Mechanic: EricFromCT, Ford Technician replied 1 year ago

Have you had any work to the ac done? Has the system been recently charged?

Please note that customer satisfaction is my number one goal and rating this chat session 3 or more stars will keep the chat open for further follow up questions you may have. Click here for an example of how to rate . Also we can respond in this chat back and forth many times. I may be offline when you respond but I will promptly reply when I return.

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