How do you change the themostat in a 1995 Ford Ranger and is there a diagram you can download of the internet?

Answer 1

It's really pretty easy.
1. Drain antifreeze into a bucket to lower the level of water in radiator/block. there is a petcock valve at the bottom drivers side.
2. Find the end of the top radiator hose at the block
3. remove the hose
4 remove the bolts holding the housing the hose was attached to.
5. lookee there, there is the thermostat.
6. clean surface and replace thermostat, spring goes in first.
7. reattach the housing with new gasket.
8. reattach the hose
measure out the amount of antifreeze and replace with new that is mixed 50% anti-freeze, 50% water
fill the radiator(not overflow tank) then start engine. when the thermostat heats up it will open and the water will go down in the radiator, fill the radiator and put the cap on. make sure the overflow is filled to the full line or HOT line when the engine is up to normal running temperature 10-15 minutes of idle.
That's it. Check the overflow daily for a week to make sure it doesn't go down and check the area for leaks..

Answer 2

you don't need a diagram for this job its really easy to do,,you just follow the top radiator hose down to the engine ,and there you,ll see a housing,that's where the thermostat is located,,drain some of the coolant out of it,and remove the housing,now remove the thermostat housing,and them remove the thermostat from it,clean all the old gasket off,and install a new gasket,and then the thermostat and put the housing back on,and don't over tighten the bolts too much or it will bust the housing ,,tighten it all down good and tight ,and re-fill the system,and your done with it,,that's not to bad now is it,,good luck,i hope this help,s.

Answer 3

what engine do you have. the directions will vary depending on engine size. but is relatively easy no matter which engine.


Removal (2.3 and 4.0)

CAUTION: Do not pry on water thermostat (8575) to remove.

Drain the cooling system so that the coolant level is below the water thermostat as described in Cleaning and Inspection, Cooling System Draining, Filling and Bleeding in this section.
Disconnect the heater return hose at thermostat housing located on the left front lower side of the engine (6007) (2.3L only). Disconnect engine coolant temperature sensor (ECT sensor) (12A648) connector (2.3L only).
Remove upper radiator hose (8260) .
Remove the coolant outlet housing retaining bolts. Pull the elbow away from the cylinder head (6049) or manifold sufficiently to provide access to the water thermostat . Remove the water thermostat and gasket.


Installation

WARNING: DO NOT STAND IN LINE WITH OR NEAR RADIATOR FAN BLADE (8600) WHEN ENGINE IS RUNNING.

CAUTION: The thermostat seal (8590) must be positioned on the water outlet connection before the water thermostat is installed.

To prevent incorrect installation of the water thermostat , the water outlet connection casting contains a locking recess into which the water thermostat is turned and locked. Install the water thermostat with the bridge section in the outlet casting. Turn the water thermostat clockwise to lock it in position on the flats cast into the water outlet connection.

Clean the upper radiator hose connection, cylinder head and water outlet connection surfaces. Coat a new thermostat housing gasket with Perfect Seal Sealing Compound B5A-19554-A or equivalent meeting Ford specification ESE-M4G115-A. Position the thermostat housing gasket on the cylinder head opening.
It is critical that the correct water thermostat installation alignment be made to provide coolant flow to heater. Insert and rotate water thermostat to the left or right until it stops in the water outlet connection housing, then visually check for full width of heater outlet tube opening to be visible within the thermostat port in assembly.

This port alignment at assembly is required to provide maximum coolant flow to the heater.

Position the coolant water outlet connection against the cylinder head , intake manifold (9424) or water pump (8501) . Install and tighten the retaining bolts to 20-30 Nm (14-21 lb-ft).
Connect the upper radiator hose to water outlet connection.
Fill the cooling system with the recommended Premium Cooling System Fluid E2FZ-19549-AA or equivalent meeting Ford specification ESE-M97B44-A and water mixture as described in this section. Check for leaks and proper coolant level after the engine has reached operating temperature.
A coolant mixture of 50 percent ethylene glycol and 50 percent water is recommended to maintain best overall performance. To avoid damaging the radiator (8005) , the ethylene glycol should not exceed 60 percent.


Removal (3.0)

Drain cooling system.
Remove upper radiator hose (8260) from water outlet connection.
Remove two retaining bolts.
Remove water outlet connection and water thermostat (8575) as an assembly.
Discard gasket. Clean sealing surfaces with gasket scraper. Gouges in aluminum could form leak paths. Use care when scraping thermostat housing-to-gasket mating surfaces.
Installation

Make sure sealing surfaces are totally free of gasket material.
Install water thermostat into thermostat housing as illustrated.
Position gasket onto thermostat housing using bolts as holding devices. Install water thermostat and tighten bolts to 20-30 Nm (14-21 lb-ft).
Install upper radiator hose . Tighten clamp securely.
Fill and bleed cooling system with proper amount and mixture.
Start engine (6007) and check for coolant leaks.

Answer 4

www.autozone.com. Has photos and instructions