Question about 1997 Mercury Mountaineer

1 Answer

Heater is blowing cold what to do?

Thermostat just put in what else could it be

Posted by on

  • james May 11, 2010

    does the engine temperature come up to normal range?



1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert whose answer gotĀ voted for 20 times.


    An expert who has answered 20 questions.

  • Expert
  • 77 Answers

Hi, it could be that your heater matrix is air locked or blocked, have you bled the system? try to bleed the system with the engine at idle, is the bottom of your raditor cold? it sounds like you have an air lock somewhere, hoppe this helps

Posted on Feb 21, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert 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 repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Car heater blows cold air

It could be the heater control valve make sure the vacuum line is connected to the valve and that it is working properly. If it is not replace the valve. Hope this helps.

Jan 09, 2014 | 1999 Chevrolet Blazer

1 Answer

My 2008 ford ranger has a heater that wont get hot.w/temp knob full hot, cold air. Checked fuses. I heard about a "door" inside the heater that can get "stuck", but just rumor. It...

hi Planeman.
Why is the heater in my car not working? Ken Mattson, owner of Len's Automotive in Bellevue, Wash., says a car heater can stop working for a number of reasons, including: A low antifreeze/water level in the radiator due to a leak in the cooling system. A bad thermostat that isn't allowing the engine to properly warm up.11 Dec 2013

Why Isn't My Car Heater Working? ' Angie's List Search for: Why is the heater in my car not working?
Why is my car heater not blowing hot air?Hot coolant from the engine passes through a heater core, which looks and functions a lot like a small radiator, and a blower motor forces air through it. ... It's also the reason that a plugged heater core, stuck thermostat, or air in the cooling system can all cause a car's heater to blow cold.9 Jul 2017When Your Car Heater Blows Cold Air - Lifewire
How do you fix the heat in your car?Begin with the vehicle on level ground, engine off (cold) in park with the emergency brake set.Heater Controls. Step 1 - A heater cannot operate unless the engine is full of coolant/antifreeze. ...Refilling Cooling System. ...Engine Thermostat. ...Blend Door Actuator. ...Broken Vacuum Line. ...Heater Control Valve. ...Vacuum Gauge. ...Heater Core.How to Fix a Car Heater in Under 30 Minutes - 2CarPros
What are the symptoms of a bad thermostat?A motor with a bad thermostat will run fine for the first few minutes, then overheatrapidly. Other symptoms include the engine and radiator making a rumbling, gurgling, boiling sound: like a steam pipe knock, if you've ever heard one of those. A thermostat sticking open can make your heater not work in the winter.Auto, Car, Truck THERMOSTAT Repair bad thermostat symptoms
or go to this link if you need more help.
2008 ford ranger has heater that won get hot Google Search

Nov 19, 2017 | 2008 Ford Ranger

1 Answer

I have a 2001 dodge stratus and the heater only blowed cold aire now we changed the thermostat and it blows warm air when idling but when driving still blows cold need some help please

where did you buy your thermostat? if you bought a fail-safe style thermostat it could have been no good before you even put it in. also is your tempeture gauge coming up to operating temp?? if it isnt your thermostat may be stuck in the open position allowing the coolant to circulate freely and not actually warm up. i would also check the lines going into the heater core. if one line is hot and the other line is cold than your heater core is probably in need of a flush or replacement.

Dec 01, 2010 | 2001 Dodge Stratus

1 Answer

Ford fiesta 1.8 turbo diesel blower blowing cold have put in new thermostat. heater matrix,still blows cold can you help

Yes check the heater control valve on bulk head between wipers lilttle elec unit with 2 pipes going into it, about £26 to replace,

Jan 19, 2010 | 1992 Ford Festiva

2 Answers

2000 satin sl1 heater blows cold air, had the

my 2000 saturn sl blows cold air with the heater on. I changed the thermostat,and checked out my heater core.Still blows cold air.

Jan 17, 2010 | 2000 Saturn SL

2 Answers

94 Grand AM NO HEAT, just blows cold air

your description ends. what have you put in...
if you have put stop leak in the car it can clog your heater core.
check your thermostat
check your engine oil if it looks milky you have a head gasket problem aslo check your coolant if there is oil in your coolant you have a head gasket problem

Feb 04, 2009 | 1994 Pontiac Grand Am

2 Answers

Heater blowing cold air

your thermostat is stock replace it

Jan 26, 2009 | 2000 Daewoo Lanos

2 Answers

Cold heater

Thermostat is faulty. Change it to fix your problem.

Jan 21, 2009 | 1993 Subaru Legacy

2 Answers

Bmw 523i se heater blows hot and cold

Sounds like a thermostat sticking. Some things to do. First check coolant level is up and moving. Second (most likely), change thermostat. Very easy fix for backyard mechanic. Make sure to put thermostat in so water flow is correct direction. Look for arrow on side of thermostat. Next, is belt to water pump loose. Another easy fix in most cars.

Jan 10, 2018 | 2001 BMW 5 Series

1 Answer

Heater blowing cold air

squeeze the hoses to get any air bubbles out and refill coolant as necesary. are you sure you put thermostat in the right way? may be backwards. also may be your sensor.

Jan 04, 2009 | 1991 Dodge Ram

Not finding what you are looking for?
1997 Mercury Mountaineer Logo

Related Topics:

145 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mercury Experts


Level 3 Expert

77939 Answers


Level 3 Expert

5651 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

Are you a Mercury Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides