Question about Ford Cars & Trucks

1 Answer

How to dianose waterpump to find problem

97 ford aerostar 3.0 oerheating no hot air comming out of heater replaced thermostate already flush & refilled with anti-freeze no change

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 396 Answers

Could be the water pump or the serpentine belt is slipping on the water pump pulley. Is the radiator coolant hot? If it is, the coolant is not circulating through the block and heater core. I am assuming you see and hear no leaks and you have installed the thermostat in the correct direction to match the coolant flow.You should be able to squeeze the radiator hose before the thermostat and feel it expand when you have the engine running. You might be able to splice a hose with a T connection and valve to see the flow. Otherwise you would have to take out the pump and check the impeller.

Posted on Sep 09, 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.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Poor heat

It probably has an air pocket in the cooling system and needs to be bled out.

Dec 26, 2013 | Ford Cars & Trucks

1 Answer

Hot heat at idle cool when driving

is there a chance that one of your heater hoses are clogged? or where they connect to the engine are clogged still? sounds like a clogged system. Cracked heater housing? Outside air bypassing the heater coil while driving?

Dec 13, 2013 | 2004 Pontiac Grand Prix

1 Answer

I put a new thermostat in my 1994 ford escort,and still dont have warm heat while my heater is on. How do I test to see if I have a bad waterpump?

If it where your water pump isthe vehicle would overheat. After you replaced the thermostat do you run the engine at idle with the radiator cap removed until the radiator fan came one? This will help push the air out of the system. There are two other possibilities. 1. The heater core is plugged. Back flushing the heater core may help remove the built up debris and get you heat again. 2. The blend door may not be fully transitioning from cold to hot. You should be ale to hear a district change in how the air sounds when switching from full hot to full cold. Let me know if you have any questions and I'll do my best to answer them. Thank you for using!

Jan 25, 2012 | Cars & Trucks

1 Answer

I have an 1994 ford escourt wagon LX...i have replaced the thermostat and housing and back flushed the whole system..the air still doesnt blow hot enough air to warm the car up inside..this needs to be...

Hi hope I can help.
Go in the engine compartment on the passenger side fire wall,
you will see two 3/4 inch hoses.
run your engine up to temp
Then place your hand on the two hoses. (heater core hoses)
Both hoses should be warm.
If one is hot and the other cool your heater hose is clogged.
You can try to flush it by removing the hoses and flush it with a garden hose.
hopes this helps .and keeps your warm.
Please leave feedback thank you FixYa

Feb 09, 2011 | Ford Escort Cars & Trucks

1 Answer

No heat

Either your heater core is plugged or the system has an air lock. To cure an air lock loosen the rad cap, not the overflow, to the first notch and run the truck for a day or two. Check the coolant level often and keep it topped up. If this doesn't solve the problem you could try a "reverse flush" on the system to loosen up whatever is blocking the heater core, otherwise you'll have to replace the core. Hope this helps.

Feb 08, 2010 | 2000 Chevrolet Silverado 1500

3 Answers

Heater just gets kinda warm but not hot

may need a thermostant,or a heatercore back flush.

Sep 30, 2009 | 1991 Ford Ranger Supercab

1 Answer

Hot exhaust comming out of the raditor cap

have you flushed out the radiator ? get some radiator flush and flush it out. There could be a blockage in the radiator.

Jul 22, 2008 | 1989 Ford Probe

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

123 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts


Level 3 Expert

76846 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers


Level 3 Expert

5546 Answers

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

Answer questions

Manuals & User Guides