My 2009 GMC Sierra heater will not put out hot air.

Asked by Guru9F58W1 Nov 20, 2022 at 06:45 PM about the 2009 GMC Sierra 1500 SLT Crew Cab 4WD

Question type: Maintenance & Repair

Just had truck returned from Collision Repair shop, they removed and replaced
all of the R Side panels for dents and paint. Maybe they pulled something
loose? Any Ideas.

1 Answer
40,075

beatupchevy answered 2 years ago

It's certainly possible that a connector was missed , they concentrate on the body work not anything mechanical . But something may have gone wrong by pure coincidence , Check the coolant level and heater hoses they should both be hot , I think those trucks have a blend door that dictates heat and are not that accessible , that's what I think

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