# 2008 Nissan Sentra Loses Power

**URL:** <https://community.cartalk.com/t/2008-nissan-sentra-loses-power/80330>\
**Category:** Maintenance/Repairs\
**Tags:** nissan, sentra\
**Created:** [July 14, 2013, 7:30pm UTC](https://community.cartalk.com/t/2008-nissan-sentra-loses-power/80330 "2013-07-14T19:30:52Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![chucksilo](https://avatars.discourse-cdn.com/v4/letter/c/8c91f0/32.png) [@chucksilo](https://community.cartalk.com/u/chucksilo)\
**Post date:** [July 14, 2013, 7:30pm UTC](https://community.cartalk.com/t/2008-nissan-sentra-loses-power/80330/1 "2013-07-14T19:30:52Z")

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My girlfriend has a 2008 Nissan Sentra that loses power on the drive to Laramie, WY. We live at about 4,000 feet and hit about 8,000 feet on the drive. It only happens when we’re driving into Laramie. Speeds drop to about 45 to 50 MPH max. It has happened on three different routes into Laramie but has never occurred on the way back out. We’ve tried stopping in Cheyenne and letting the car cool down before starting the climb and it has not had an impact.

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**Author:** ![knfenimore](https://avatars.discourse-cdn.com/v4/letter/k/9fc348/32.png) [@knfenimore](https://community.cartalk.com/u/knfenimore)\
**Post date:** [July 14, 2013, 7:52pm UTC](https://community.cartalk.com/t/2008-nissan-sentra-loses-power/80330/2 "2013-07-14T19:52:36Z")

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Air thins out and engine looses power in higher altitudes. The computer should compensate for the change in altitude, but it can not compensate for a dirty air filter.

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**Author:** ![chucksilo](https://avatars.discourse-cdn.com/v4/letter/c/8c91f0/32.png) [@chucksilo](https://community.cartalk.com/u/chucksilo)\
**Post date:** [July 15, 2013, 1:36am UTC](https://community.cartalk.com/t/2008-nissan-sentra-loses-power/80330/3 "2013-07-15T01:36:33Z")

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Air filter was replaced after it happened the first time. Also it only happens on way IN to Laramie. On way home it always does fine.

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**Author:** ![ok4450](https://avatars.discourse-cdn.com/v4/letter/o/e9bcb4/32.png) [@ok4450](https://community.cartalk.com/u/ok4450)\
**Post date:** [July 15, 2013, 2:23am UTC](https://community.cartalk.com/t/2008-nissan-sentra-loses-power/80330/4 "2013-07-15T02:23:23Z")

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Any Check Engine Light or codes present? Temperature gauge pegging out?

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**Author:** ![Cavell](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cavell/32/43396_2.png) [@Cavell](https://community.cartalk.com/u/Cavell)\
**Post date:** [July 15, 2013, 2:31am UTC](https://community.cartalk.com/t/2008-nissan-sentra-loses-power/80330/5 "2013-07-15T02:31:11Z")

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Is the altimeter broken?

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**Author:** ![chucksilo](https://avatars.discourse-cdn.com/v4/letter/c/8c91f0/32.png) [@chucksilo](https://community.cartalk.com/u/chucksilo)\
**Post date:** [July 15, 2013, 3:02am UTC](https://community.cartalk.com/t/2008-nissan-sentra-loses-power/80330/6 "2013-07-15T03:02:58Z")

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Check engine light is on but when we pulled codes only a tire pressure error code popped. Temperature looks fine. Do cars have altimeters?

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**Author:** ![chucksilo](https://avatars.discourse-cdn.com/v4/letter/c/8c91f0/32.png) [@chucksilo](https://community.cartalk.com/u/chucksilo)\
**Post date:** [July 16, 2013, 3:55am UTC](https://community.cartalk.com/t/2008-nissan-sentra-loses-power/80330/7 "2013-07-16T03:55:50Z")

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Actually threw a code last night; PO744. We will be looking at the transmission fluid level and if it looks clean. Any other thoughts?