Question about 1998 Mercury Mountaineer
Heater matrix failure is a common problem in cars, this may need replacement. This is like a small radiator connected up to the engine cooling system in most cars (hence the need for the car to warm up before hot air is delivered)
It can also get blocked or leak in the same way as a radiator can. Then you'd need to flush it
You might want to check your coolant level, low coolant can cause this problem.
final option is the mechanical switch for air flow could be broken (usually you hear a whumph when you switch from cold to hot as the air is diverted)
hope this helps
Posted on Nov 13, 2008
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:
Nov 24, 2014 | 1999 Mercury Grand Marquis
Sep 09, 2014 | Ford Taurus Cars & Trucks
Apr 05, 2013 | 1993 Mazda Protege
Dec 13, 2010 | Dodge Ram 1500 Cars & Trucks
Mar 29, 2017 | 2004 Mitsubishi Galant
Nov 06, 2009 | 2006 Chevrolet Colorado
Oct 05, 2009 | 2005 Hyundai Elantra
Oct 20, 2014 | 1998 Mercury Mountaineer
98 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: