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2016 ford fusion energi with 154k intermittent rough start when at idle

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  1. Sometimes its starts and shuts off perfectly then sometimes it's so rough the whole car shakes. Was thinking it was dirty fuel fuel injectors. I used the a royal purple cleaner but no change. I change oil regularly. Haven't changed transmission fluid yet. It is a cvt but I figured it's at idle in park. So that wasnt on top of my list to do yet. I will say I'm very pleased with my hybrid and cvt transmission. The launch gear definitely launches for about 5 seconds then she's a slow mo. I use this car for work and its running 10 plus hours a day averaging 100 miles a day. Thank you for your time and God Bless 
3 Answers
2

Clean the IAC valve. 

Many thanks. Very awesome to get help. Thank you for your time and knowledge. I'm going to replace IAC valve and PC valve this weekend.

You're welcome. Keep us posted.

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Also - 

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When was the last time you replace the PCV valve?

Many thanks. Very awesome to get help. Thank you for your time and knowledge. I'm going to replace IAC valve and PC valve this weekend.

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