Question about 1999 Chevrolet Silverado 1500
Fan works great, mode changes, but only blows cold air. recently changed the water pump but problem had started before that and gradually got worse.
Have you changed your thermostat? I test all thermostats to make sure they work before I install them. Also back flush the hearter core. Disconnect the heater hoses and flush the core. I see a lot of these clogged. Hope this helps.
Posted on Jan 25, 2009
a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Feb 13, 2014 | Cars & Trucks
Jan 20, 2014 | 2006 Mitsubishi Colt
Jan 21, 2013 | 1999 Dodge Dakota
Jan 16, 2010 | 2001 Chrysler LHS
Dec 19, 2009 | 1999 Cadillac Eldorado
Dec 11, 2009 | 1999 Ford F150 Regular Cab
Mar 01, 2009 | 1998 Chevrolet S-10 Pickup
Dec 18, 2008 | 2004 Chrysler Town & Country
Oct 24, 2008 | 2002 Chevrolet Malibu
186 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: