Question about 1991 Ford Ranger Supercab

2 Answers

Heater gets just a little warm

How do I back flush a heater core with a water hose on a 1991 Ford Ranger?
Where is the thermostat?

Posted by on

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 881 Answers

The thermostat is on both v8 and straight 6 engines are where the top hose goes to the engine and the thermostat is held on with 2 bolts (and make sure it goes back in the same way as it comes out).
But to wash out the heater core well there are 2 5/8" hoses going into the firewall and can be either 2 togeather or one either side of the engine but they are 5/8" hoses, and 1/2" on the early engines, nearest to radiator and turn heater switch to hot with engine running then turn it off and remove the hoses and put the hose flush with the heater hose and turn it on to flush out ,,refit hoses refill with COOLANT. start and test run..

Posted on Oct 08, 2009

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 708 Answers

Follow the two rubber hoses from the firewall to where they connect to the motor. disconnect them and flush through both of them. whichever one you start with first dont point the empty hose at you becuz the water will be coming out of it.

follow the large hose from the top of the radiator to where it claps to the engine. unclamp it, remove the nipple it was clamped to and there will be the thermostat

Posted on Sep 30, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
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.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Flush heater core on 2009 ford ranger


if your just doing the heater core you can clamp off the heater hoses to the core, disconnect them from the heater core and run water through it both ways. if its real bad connect spare hoses to the heater core spigots and pour CLR into the core until it is full(coming out other hose) block off hose so the core is filled and let sit. then flush out again until water runs clear. if this won`t clear it then it will have to be replaced.

Mar 06, 2015 | 2009 Ford Ranger Regular

1 Answer

I have a 1991 Ford Ranger 2.9,and I am having a heat problem I did change the thermostat but no heat yet,this is what I found so far. I checked top radiator and its hot,the bottom hose on radiator is cold....


ok in the engine compartment look at the radiator with the engine cold NOT ON" squeeze the hose with your fingers and feel if hose is crunchy or brittle if is possible a block could have happen locations /points at the vacuum heater valve gate on the heater hoses or a clogged up lower heater hose get a water hose and back flush the heater's hoses normal travel of water is from bottom to top so put the water hose to the tophose and flush backward and try to move the heater valve by finger and see if you get flow (mind you with hoses of the radiator DONT CRANK YOUR ENGINE)

Sep 10, 2013 | Ford Cars & Trucks

2 Answers

Have no heat.new thermostat.water pump.radiator.


Hi, did you check the heater hoses?... Try it
Best regards

Jan 29, 2011 | 1992 Ford Ranger

1 Answer

83 ford ranger no heat ,new heater core,thermostat,blower motor,runs at normal temps,noticed one heater hose very hot yet the other one which is ran into a metal line going to the engine or ekg valve is...


it sounds like you have a air blockage, or the cooling system needs flushed. to flush system go to ( autorepair.about.com/od/regularmaintenance/ss/coolant_f...) click on 3rd one down. remember to bleed air out of system, this works the best. turn heater and blower on high, start adding coolant. start car let it idle till radiator thermostat opens. when top radiator hose gets hot you should have heat. some vehicles have a bleeder to let air from system. when filling putting coolant in system. if it does, then open bleeder while engine running and putting in coolant untill there are no air bubbles coming out. have a good day !! when doing flush if need be. you can go to any auto parts store and buy radiator flush. follow directions on the back ( prestone is best )

Dec 11, 2010 | 1983 Ford Ranger

1 Answer

No heat in 2006 ford ranger could it be thermostat?


the thermostat is the easyest place to start with but im betting on a pluged heater core your gonna have to back flush the heater core take off the hoses to the heater and some how connect a garden hose then slowly turn the water on watch and observe anything coming out.

Oct 02, 2010 | 2006 Ford Ranger

1 Answer

1998 Ford Ranger heater blowing cold air only. What are some posibble causes and how do I fix it.


First, make sure the radiator and tank are full of coolant. Drive car to operating temperature, check to see if the heater hoses are getting warm, if not back flush the heater core. If engine is not getting warm, replace the thermostat

Jan 06, 2010 | 1998 Ford Escort

2 Answers

No heat in cab in ford ranger 2005 tied heater


check if both heater hoses going into firewall are hot.. if only one is hot then your heater core is stopped up..you can take both lines loose and take a water hose and back flush,,, force hose on one inlet of heater core for a minute and then the other.. keep going to you get a good flow...make sure heater valve is open, not just valve position take loose and confirm clear..last make sure your thermostat is not stuck open keeping engine from comming up to temperature

Jan 04, 2010 | 2005 Ford Ranger

1 Answer

No heat thermostat isopening and closing andfanis working sometimes you get a little barley warm air then it goes back to cold air also ck. eng. light is on


Ck Eng light probably not related.
The heater core is clogged. A bottle of cooling system "quick flush" may be all you need ($6 AutoZone).
There is also a complete flush system, but requires that you splice into the heater hose (I installed it on my Taurus - works great!).

By the way, there is a heater core bypass hose. It is connected to the two heater core hoses near the firewall. You may want to remove the two "Tee" fittings and use a 5/8" hose splicer so that the flush passes through the heater core at full force. Put the Tee's back in place after the flush.

If you remove the tee fittings and don't flush, the heater will work, but the core may eventually start leaking.

Oct 02, 2009 | 2001 Ford Taurus

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

No heat after changing thermostat.


remove the heater core lines the two hoses that go to the heater core, take a splice tube either metal our plastic your part store will have either one. take the splice tube and install it in one of the lines add some hose to that tube make the hose long enough to run out side of the engine compartment and on to the ground. take the other hose and install a flushing tee, hook up to a garden hose and trun the water on . what you are trying to do is flush the heater core , you are also looking for blockage off the heater core, if you little to no flow i would suggest replaceing the heater core

Dec 16, 2008 | 1991 Ford Escort

Not finding what you are looking for?
1991 Ford Ranger Supercab Logo

165 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

75051 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

fordexpert

Level 3 Expert

5470 Answers

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

Answer questions

Manuals & User Guides

Loading...