# Rough at idle and uphill

**URL:** <https://community.cartalk.com/t/rough-at-idle-and-uphill/103391>\
**Category:** Maintenance/Repairs\
**Tags:** v70, volvo\
**Created:** [April 28, 2017, 6:08am UTC](https://community.cartalk.com/t/rough-at-idle-and-uphill/103391 "2017-04-28T06:08:03Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![uplift58](https://avatars.discourse-cdn.com/v4/letter/u/8e8cbc/32.png) [@uplift58](https://community.cartalk.com/u/uplift58)\
**Post date:** [April 28, 2017, 6:08am UTC](https://community.cartalk.com/t/rough-at-idle-and-uphill/103391/1 "2017-04-28T06:08:04Z")

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My 99 v70 non turbo has run perfectly since I bought it 6 years ago. Today driving home from the store while stopped at a red light it started to idle rough and I was worried it might die. On taking off it was rough like stuttering but not as bad when up to speed but on going uphill very rough and sluggish. When I got home I left it running, put it in park and stepped on the gas. Rough at low rpm and ok at higher rpm. Does this sound like a fuel pump or filter or something else?

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**Author:** ![Yosemite](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/yosemite/32/643_2.png) [@Yosemite](https://community.cartalk.com/u/Yosemite)\
**Post date:** [April 28, 2017, 1:38pm UTC](https://community.cartalk.com/t/rough-at-idle-and-uphill/103391/2 "2017-04-28T13:38:46Z")

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It doesn’t sound like a fuel pump or filter problem.

When was the last time the plugs were changed and a new air filter was installed.  
I would suspect those and a good cleaning of the throttle body were in order.

Yosemite

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**Author:** ![uplift58](https://avatars.discourse-cdn.com/v4/letter/u/8e8cbc/32.png) [@uplift58](https://community.cartalk.com/u/uplift58)\
**Post date:** [May 13, 2017, 9:55am UTC](https://community.cartalk.com/t/rough-at-idle-and-uphill/103391/3 "2017-05-13T09:55:39Z")

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A scan showed a problem with the #3 cylinder. I changed the plugs, the #3 coil, and put in a new air filter. Problem solved.

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**Author:** ![jtsanders](https://avatars.discourse-cdn.com/v4/letter/j/c2a13f/32.png) [@jtsanders](https://community.cartalk.com/u/jtsanders)\
**Post date:** [May 13, 2017, 12:54pm UTC](https://community.cartalk.com/t/rough-at-idle-and-uphill/103391/4 "2017-05-13T12:54:55Z")

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Thanks for getting back to us with the solution. Stick around and continue to learn. That’s why I’m here.