Question about 1992 Ford Mustang

2 Answers

92 Mustang Engine WIll Not Heat

Have a 1992 mustang with the 4 cylinder engine and engine will not run warm enough to generate enough heat to warm the vehicle. I have replaced the thermostat with the warmest one available already. And based on the heat guage barely rising when the engine is running, I doubt the thermostat ever opens up, yet the vehicle still runs cool. I know this is typical of many 4 cylinders vehicles, but any suggestions would be appreciated as winters are cold up here in Canada.

Posted by on


2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert who has answered 20 questions.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

  • Expert
  • 94 Answers

Reggie, living in the uk, i having never worked on a mustang, but have found this problem on many cars, two thing i can mention here, 1st is the heater matrix (small radiator thingy usually located in front of the fan behind the dashboard)being blocked by limescale or 2nd the stem of your warm cold dial no longer keying with the valve that changes from cold to hot. Since the themostat problem has been address try looking closer at these 2

Posted on Oct 24, 2008

  • 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.


    An expert who has achieved Level 3.

  • Master
  • 426 Answers

Sounds like you have partialy blocked heater core,not enough flow to the heater or heater tap either not working or only partialy open.You may have to remove heater hose at the fire wall and flush with garden hose.Also check if heater hoses are clear and running freely by using the same garden hose If you put hose up removed heater hose you should get a strong run of water coming out of the heater radiator.

Posted on Oct 24, 2008


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 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

Add Your Answer

Uploading: 0%


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



Related Questions:

2 Answers

92 Ford Mustang 4 cylinder sluggish

who puts a 4 cyl in a mustang??? 4 cyl cant push that kind of weight,i have a briggs and stratton motor that might work better

Jul 25, 2015 | Ford Cars & Trucks

1 Answer

I have a 1989 mustang 5.0 supercharged the engine runs great when cold after it gets warm around 205 it develops a miss almost when u are driving down the road the tach will drop 200 300 rpms and pick back...

Hello, Check you running engine when it is hot. Use an old spray bottle and mist every seam you can find. If the RPM changes you have found a Vacuum leak. I suspect that as the engine heats up, the parts swell and it creates a gasket leak.

If you have a more serious problem, you may have a crack in a head which expands as the engine warms up. There are Electronic tests for Cylinder balance which can expose a cylinder or head gasket which leaks and changes the Cylinder balance. You need a shop with a scope that can do Cylinder balance.

A lazy O2 sensor can also make the RPM float like yours is doing. Usually your onboard computer generates and identifies the specific O2 sensor that is bad. If your car has set a Code, then Autozone, Oreillys, and Advance will scan your car for free.

I hope my solution helps you find your problem. Would appreciate a note when you get your car fixed.

Jun 08, 2011 | 1989 Ford Mustang

1 Answer

I have a 92 mustang lx 5.0. it recently froze due to weather conditions. iv been running warm water through it but i have water running out the bottom rear of engine. is this a freeze plug issue? if so i...

How is it possible that the car froze??
Do you live in a place that it doesn't freeze often?
Yes, you have issues.
First drain all the coolant and get the right mix.
Not only should you do this for freezing conditions, but for hot conditions as well.
You could have a blown freeze plug.
AND you could have a cracked block!
I'd have it pressure tested to make sure.

Jan 10, 2010 | 1992 Ford Mustang

1 Answer

How to set timing marks on a 92 mustang lx 2.3

I have the information and pictures that you need. If you are interested then contact me and give me all pertinent information on your vehicle such as engine size, year, make, model etc.

Sep 14, 2009 | 1992 Ford Mustang

1 Answer

I have a 65 mustang 200 engine. After changing

Make sure you were given the right plugs for the car (correct heat range) also check the choke plate after the car warms up to ensure the choke plate is all the way open.

Jul 10, 2009 | 1965 Ford Mustang

2 Answers

Mustang, 1992 2.3L dual point OBD 1 error codes problem

Have you checked for spark on all 8 plugs? Unplug the exhaust side coil pack and run the engine. Does it run on all 4 cylinders?

May 27, 2009 | 1992 Ford Mustang

1 Answer

Automatic gear shifter has become stiff - harder to move

put the car on jackstands or drive it onto ramps, take som carb cleaner/engine degreaser and spray the the little linkage on the side of your tranny, then work it through the gears, don't start it, just turn the key ot the first notch and put your parking brake on, try this process a few times, if this doesn't help there may be bigger problems.

Mar 12, 2009 | 1992 Ford Mustang

1 Answer

Runs rough

How long have you had this problem? It could just be a bad tank of gas. Other things to check:
1. fuel pump and filter
Could be running on only 5 cylinders due to
2. spark plugs/wires
3. plugged fuel injector
Any problems with electrical? Like lights dimming at same time as running rough?
4. could be bad alternator putting excessive load on engine.

Nov 08, 2008 | 2000 Ford Mustang

Not finding what you are looking for?
1992 Ford Mustang Logo

246 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts


Level 3 Expert

77499 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers


Level 3 Expert

5623 Answers

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

Answer questions

Manuals & User Guides