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How to Diagnosis a Rough Idle and Hesitation

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How to Diagnosis a Rough Idle and Hesitation

845,004 views October 25, 2015 5:29

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ChannelJohn Sadler's Auto Repair

Description from the creator

Hi Everyone: This 2001 Hyundai Santa Fe with a 2.4L engine has a rough idle and hesitation. The code is PO171, system lean, freeze frame fuel trim is 12.5 %. At idle the fuel trim is minus 12.5% and at 2,500 rpm is 5.5%. The problem I found was air filter not installed properly allowing dirt to get sucked into the engine, the wrong spark plugs for the vehicle and a collapsed PVC hose. For more information be sure to visist: johnsadlersautorepair.com

About this tutorial

John Sadler's Auto Repair published this 5:29 video tutorial on October 25, 2015. It has been watched 845,004 times on YouTube.

Duration
5:29
Published
October 25, 2015
Views
845,004
Likes
5,435

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