2004 Pontiac Grand Prix GT1 6 Cyl 3.8L
Body & Interior
Blower motor won't shut off on my 04 GP
even when you unplug the speed switch it keeps blowing
Several possibilities; faulty switch, faulty blower relay, faulty blower motor. Check on-line for the many parts supply sources, such as; www.autopartswarehouse.com or www.rockauto.com for the replacement parts.