# Heater works while accelerating, blows cold when release gas **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** buick, century\ **Created:** [November 15, 2011, 3:47pm UTC](https://community.cartalk.com/t/heater-works-while-accelerating-blows-cold-when-release-gas/69530 "2011-11-15T15:47:42Z")\ **Posts on this page:** 4\ **Page:** 2
**Author:** ![Triedaq](https://avatars.discourse-cdn.com/v4/letter/t/65b543/32.png) [@Triedaq](https://community.cartalk.com/u/Triedaq)\ **Post date:** [January 23, 2018, 4:49pm UTC](https://community.cartalk.com/t/heater-works-while-accelerating-blows-cold-when-release-gas/69530/21 "2018-01-23T16:49:26Z")
Try this: put your transmission in low range and drive a couple of blocks at 30 to 35 mph. If you get heat, I would bet on a partially plugged heater core. When you are accelerating, your engine is running in lower.gears at a higher rpm. When you get up to speed, your transmission drops into a.higher gear and the rpm drops. Running in low for a.couple of blocks at 30 mph keeps the engine revving at a higher rpm. If the heat is warm, it is probably a partially blocked heater core. ---
**Author:** ![speedingcheetah](https://avatars.discourse-cdn.com/v4/letter/s/90ced4/32.png) [@speedingcheetah](https://community.cartalk.com/u/speedingcheetah)\ **Post date:** [January 24, 2019, 5:08am UTC](https://community.cartalk.com/t/heater-works-while-accelerating-blows-cold-when-release-gas/69530/22 "2019-01-24T05:08:34Z")
After quite a bit of searching, this is the only page I have come across that is _close_ to my “issue”. I have same issue, temp of air suddenly goes cool, BUT, only when i make a moderate to full turn, left or right. 2007 Dodge Caliber SE 2.0L. No issues with engine temp. Coolant level is fine. ---
**Author:** ![Michigan2020](https://avatars.discourse-cdn.com/v4/letter/m/43a26b/32.png) [@Michigan2020](https://community.cartalk.com/u/Michigan2020)\ **Post date:** [February 10, 2020, 4:25pm UTC](https://community.cartalk.com/t/heater-works-while-accelerating-blows-cold-when-release-gas/69530/23 "2020-02-10T16:25:05Z")
Did anyone ever find a solution? I have a 2016 Ford Fusion doing the same thing. ---
**Author:** ![icer22x\_162045](https://avatars.discourse-cdn.com/v4/letter/i/9d8465/32.png) [@icer22x\_162045](https://community.cartalk.com/u/icer22x_162045)\ **Post date:** [February 13, 2020, 12:36pm UTC](https://community.cartalk.com/t/heater-works-while-accelerating-blows-cold-when-release-gas/69530/24 "2020-02-13T12:36:38Z")
OP, you ever get this fixed? I have you EXACT symptoms. [Previous page](https://community.cartalk.com/t/heater-works-while-accelerating-blows-cold-when-release-gas/69530.md?page=1)