Question about 1991 Ford F350

2 Answers

HOW TO REPLACE THERMOSTAT

HOW DO I REPLACE THE THERMOSTAT IN MY 1991 FORD F-250 7.3 LITRE DIESEL???

Posted by on

2 Answers

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 17 Answers

It should be located in a housing on top of the engine.

  • You'll need a bucket.
  • This is also a good time to do a coolant flush or replacement
  1. Follow the hose from the top of your radiator to the engine. This is the thermostat housing.
  2. Remove this hose from the engine and collect the fluid in the bucket.
  3. Remove the (usually 2) bolts holding the housing to the engine.
  4. The small round object inside is the thermostat. It's usually loose but if you have severe corrosion, you may have to pry it out with a screwdriver.
  5. Replace the thermostat.
  6. Re-install the housing and hose.
  7. Top off your coolant with new fluid
  8. Dispose of old fluid properly (This stuff is poisonous!)

Posted on Dec 15, 2008

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Well, it is not that simple for this vehicle. To get to it you'll have to remove the altenator and vacuum pump, along with the brackets. Other wise there is just no way to get to the bolts.

Posted on Dec 28, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

My speedometer stopped working and now my transmission is slipping like crazy what is causing that


1991 ,you sure this is so old the speedo cable is no way related to the gearbox on such a old vehicle ,now these 350 things are a 7.4 litre and i serviced one last week a 1989 camper van version here in spain and the access for the spark plugs leaves a lot to be desired ,So anyway this one of yours has had its day and well past its sell by date plus its not politicaly correct anymore to have such a CO2 pollutant machine ,well enough of trying to wind up my american cousins so look around for a replacement vehicle as this will be a cheaper alternative ,now how about a nice mercedes vito diesel manual or better still a ford transit diesel with a manual gearbox and the amount of fuel costs you will save will pay for the vehicle .

Apr 14, 2012 | 1991 Ford F350

1 Answer

Need to replace alternator, what cars or trucks are compatable to 1991 3.0 liter engine


AerostarV6 - 3.0L vin U 182ci - MFI GAS OHV
7 vehicles
1986 - 1992

BroncoV8 - 5.0L vin N 302ci - MFI GAS OHV
2 vehicles
1986 - 1987

BroncoV8 - 5.8L vin H 351ci - 4BBL GAS OHV
5 vehicles
1988 - 1992

BroncoV8 - 5.8L vin H 351ci - MFI GAS OHV
5 vehicles
1987 - 1991

E-150 EconolineV8 - 5.0L vin N 302ci - MFI GAS OHV
4 vehicles
1988 - 1991

E-150 EconolineV8 - 5.8L vin H 351ci - MFI GAS OHV
5 vehicles
1987 - 1991

E-150 Econoline Club WagonV8 - 5.0L vin N 302ci - MFI GAS OHV
4 vehicles
1988 - 1991

E-150 Econoline Club WagonV8 - 5.8L vin H 351ci - MFI GAS OHV
5 vehicles
1987 - 1991

E-150 Econoline SuperV8 - 5.0L vin N 302ci - MFI GAS OHV
4 vehicles
1988 - 1991

E-150 Econoline SuperV8 - 5.8L vin H 351ci - MFI GAS OHV
5 vehicles
1987 - 1991

E-250 EconolineV8 - 5.0L vin N 302ci - MFI GAS OHV
4 vehicles
1988 - 1991

E-250 EconolineV8 - 5.8L vin H 351ci - MFI GAS OHV
4 vehicles
1988 - 1991

E-250 Econoline Club WagonV8 - 5.8L vin H 351ci - MFI GAS OHV
4 vehicles
1988 - 1991

E-250 Econoline Club WagonV8 - 7.5L vin G 460ci - MFI GAS OHV
1 vehicles
1991

E-250 Econoline HDV8 - 5.8L vin H 351ci - MFI GAS OHV
5 vehicles
1987 - 1991

E-250 Econoline SuperV8 - 5.0L vin N 302ci - MFI GAS OHV
4 vehicles
1988 - 1991

E-250 Econoline SuperV8 - 5.8L vin H 351ci - MFI GAS OHV
4 vehicles
1988 - 1991

E-350 EconolineV8 - 5.8L vin H 351ci - MFI GAS OHV
4 vehicles
1988 - 1991

E-350 EconolineV8 - 7.5L vin G 460ci - MFI GAS OHV
4 vehicles
1988 - 1991

E-350 Econoline SuperV8 - 5.8L vin H 351ci - MFI GAS OHV
4 vehicles
1988 - 1991

E-350 Econoline SuperV8 - 7.5L vin G 460ci - MFI GAS OHV
4 vehicles
1988 - 1991

E-350 Econoline Super WagonV8 - 5.8L vin H 351ci - MFI GAS OHV
4 vehicles
1988 - 1991

E-350 Econoline Super WagonV8 - 7.5L vin G 460ci - MFI GAS OHV
6 vehicles

1988 - 1994*

F Super DutyV8 - 7.5L vin G 460ci - MFI GAS OHV
7 vehicles
1986 - 1992

F-150V8 - 5.0L vin N 302ci - MFI GAS OHV
2 vehicles
1986 - 1987

F-150V8 - 5.8L vin H 351ci - 4BBL GAS OHV
5 vehicles
1988 - 1992

F-150V8 - 5.8L vin H 351ci - MFI GAS OHV
7 vehicles
1986 - 1992

F-150 Super CabV8 - 5.0L vin N 302ci - MFI GAS OHV
2 vehicles
1986 - 1987

F-150 Super CabV8 - 5.8L vin H 351ci - 4BBL GAS OHV
5 vehicles
1988 - 1992

F-150 Super CabV8 - 5.8L vin H 351ci - MFI GAS OHV
7 vehicles
1986 - 1992

F-250V8 - 5.0L vin N 302ci - MFI GAS OHV
2 vehicles
1986 - 1987

F-250V8 - 5.8L vin H 351ci - 4BBL GAS OHV
5 vehicles
1988 - 1992

F-250V8 - 5.8L vin H 351ci - MFI GAS OHV
2 vehicles
1986 - 1987

F-250V8 - 6.9L vin 1 420ci - MFI DIESEL OHV
2 vehicles
1988 - 1989

F-250V8 - 7.3L vin M 445ci - MFI DIESEL OHV
7 vehicles
1988 - 1994

F-250V8 - 7.5L vin G 460ci - MFI GAS OHV
2 vehicles
1986 - 1987

F-250 Super CabV8 - 5.8L vin H 351ci - 4BBL GAS OHV
5 vehicles
1988 - 1992

F-250 Super CabV8 - 5.8L vin H 351ci - MFI GAS OHV
2 vehicles
1986 - 1987

F-250 Super CabV8 - 6.9L vin 1 420ci - MFI DIESEL OHV
2 vehicles
1988 - 1989

F-250 Super CabV8 - 7.3L vin M 445ci - MFI DIESEL OHV
7 vehicles
1988 - 1994

F-250 Super CabV8 - 7.5L vin G 460ci - MFI GAS OHV
2 vehicles
1986 - 1987

F-350V8 - 5.8L vin H 351ci - 4BBL GAS OHV
5 vehicles
1988 - 1992

F-350V8 - 5.8L vin H 351ci - MFI GAS OHV
2 vehicles
1986 - 1987

F-350V8 - 6.9L vin 1 420ci - MFI DIESEL OHV
2 vehicles
1988 - 1989

F-350V8 - 7.3L vin M 445ci - MFI DIESEL OHV
7 vehicles
1988 - 1994

F-350V8 - 7.5L vin G 460ci - MFI GAS OHV
2 vehicles
1988 - 1989

F-350 Super CabV8 - 7.3L vin M 445ci - MFI DIESEL OHV
7 vehicles
1988 - 1994

F-350 Super CabV8 - 7.5L vin G 460ci - MFI GAS OHV
7 vehicles
1988 - 1994

F53V8 - 7.5L vin G 460ci - MFI GAS OHV
2 vehicles
1988 - 1989

F59V8 - 7.3L vin M 445ci - MFI DIESEL OHV
1 vehicles
1991

RangerV6 - 3.0L vin U 182ci - MFI GAS OHV
1 vehicles
1991

Ranger SuperV6 - 3.0L vin U 182ci - MFI GAS OHV

Feb 28, 2011 | 1991 Ford Aerostar Extended

1 Answer

My ford F 250 keeps over heating


six or eight cyls diesel or gas. thermostat,plugged radiator, cylinder gaskets.need to narrow down poss problems.

Dec 21, 2010 | 1983 Ford F 250

2 Answers

I have a 2002 Ford F-250 Diesel 7.3 litre Super Duty truck. It is leaking oil from an area beneath the fuel filter. What part would I need to repair this leak?


there are 2 high pressure lines that attach to the high pressure pump near the front of the engine left side. the o rings leak. I would get them from the dealer, or a shop that does a lot of Diesel work. Its not a easy job.

Aug 31, 2010 | 2002 Ford F250 Super Duty SuperCab

1 Answer

What type of trans fluid goes in my 1991 ford F-250 diesel 5 speed manual trans


DEXRON OR MERCON TRANS FLUID WILL WORK JUST FINE .I HAVE USING IT FOR YEARS . ZF TRANNYS, T 5 , ETC.

Aug 03, 2010 | 1991 Ford F250

1 Answer

My 1991 ford f250 deisel runs warm and pushes


Three possibilities are clogged oil cooler (most likely as you only said while towing) bad fan clutch (easiest to try first) or bad head gaskets.

Oct 24, 2009 | 1991 Ford F250

2 Answers

How to get top bolt off of 1988 F250, 7.1 L diesel starter


You need a long extension and swivels for a rachet to get to the one bolt thats on top next to the block. Check for a way to get to it from the front.

Jun 25, 2009 | 1988 Ford F 250

1 Answer

Can't find central junction box


Under the steering wheel are two plastic screws. Turn them one quarter turn counter-clockwise. Pul the panel away from the dashboard. And your there.

Apr 25, 2009 | Ford F-250 Cars & Trucks

2 Answers

7.3 l diesel wont start


Bad glow plugs and/or glow plug controller. Common issue with these vehciles. Some also have harness failures. Replace all glow plugs as a set not individually.

Mar 29, 2009 | 1991 Ford F250

Not finding what you are looking for?
1991 Ford F350 Logo

Related Topics:

444 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

60960 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Fordexpert

Level 3 Expert

5331 Answers

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

Answer questions

Manuals & User Guides

Loading...