Question about 2008 Kia Spectra5

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Heater pumps out cold air until the RPMs are higher than 2000. (No the A/C is not on) On cold mornings I'll go out and start my '05 Spectra5 and crank the heat up. I come back to it 1/2 hour later and its still cold air. I'll jump in drive away and as soon as the RMPs are up around 2000 or higher, bingo I got heat. BUT as soon as I stop at a red light and the RPMs are down cold air agian.... Whats going on?

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2008, take it in for warranty work.

The reason its not working is that it uses vacuum to open the heater vent. At low idle there is not enough vacuum to open the vent, soyou get just cold air. Sounds like therer is a leak in the hose which is covered under your warranty.

Posted on Nov 29, 2009

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