Question about 1999 GMC Sonoma
99 gmc sonoma
Get a female garden hose adapter from the local hardware store. Disconnect the heater hose from behind the fan pulley and attach the hose connection. Disconnect the other heater hose behind the alternator, aim it towards the ground and flush water through the heater core. This worked on my truck.
Posted on Mar 08, 2009
Heater blows cold air everything else works fine 1999 gmc sonoma
Posted on Nov 01, 2009
98 s10 sonoma truck heater stop blowing out threw vent. defrost work and warm air. trun the switch to heat the truck does not work ???
Posted on Mar 14, 2009
Replace the heater core.
Posted on Feb 12, 2009
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Posted on Jan 02, 2017
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