How to Replace Thermostat 98-12 Ford Ranger 4.0L

How to Replace Thermostat 98-12 Ford Ranger 4.0L

In this video, 1A Auto shows how to remove, install, or replace a leaking or malfunctioning thermostat. The video is applicable to the 01 Ford Ranger

🔧 List of tools used:
• Flat Blade Screwdriver
• Phillips Head Screwdriver
• 19mm Wrench
• 13mm Socket
• 7mm Socket
• Needle nose pliers
• Needle nose pliers
• Ratchet
• Socket Extensions
• Swivel
• Anti-Freeze
• Drain Pan
• Funnel

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While 1A Auto strives to make the information provided in this video as accurate as possible, it makes no claims, promises, or guarantees about the accuracy, completeness or applicability of the content. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. All do-it-yourself projects entail some risk. It is the sole responsibility of the viewer to assume this risk. 1A Auto is not responsible or liable for any loss damage (including, but not limited to, actual, consequential, or punitive), liability, claim, or any other injury or cause related to or resulting from any information posted in this video.



1A Auto: Repair Tips & Secrets Only Mechanics Know says:

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Alex Castro says:

Awesome video, thanks, you are so professional with your videos!!

Randy Hardwick says:

Excellent video! Thank You so much. Now I need to go and do this!

Steve says:

The actual thermostat area looks tricky and unclear. I guess I'll just have to kinda wing it. My thermostat came with a gasket around the perimeter. I am guessing that's all that's needed

Ob Ord says:

My thermostat housing cover is on the front of the thermostat housing. It looks different than this one. It's kind of under the throttle body housing and it faces the front of the engine. Also, the thermostat is rated for 198 and is much smaller than the one shown here and has a neoprene gasket that covers the outer diameter of the thermostat disc. Why is that? It's a 98 Ranger 4.0 2WD.

Drew Heller says:

Honestly thought car repair was far beyond me, but this video has me convinced I can learn this. Thanks guys!

Pro Cowboy says:

That engine bay is clean

Maximus Minimus says:

Good video, but is it just me, or does this job seem a lot harder than you'd think it would be? Thanks, Ford engineers.

Joe Randall says:

Good video but I would never mess with a radiator drain valve unless u want more problems always drain out the lower radiator hose

speaktru69 says:

Great Video! Great step by step guide. Thank you!

577 Jersey Customs Adventures says:

Not real simple on a 2003 ranger

kyndred2008 says:

ths this helps alot ,great vid

Rahani11 says:

Hey guys, not sure if anyone even looks at these comments anymore but, I recently changed the thermostat on my 2008 4L ford ranger and I had to put a massive amount of pressure on it to get to compress so I could get the bolts back in…that to me doesn't sound right….did the parts store give me the wrong thermostat?

Brandy Winkler says:

Do you have to drain the radiator before doing this?

Jason Strange says:

what temperature rating is replacement thermo supposed to be?

Neal Perez says:

always pro thanks

Feed The Puppy says:

i fixed my thermostat but i didnt drain the radiator. there was fluid in a part of the hose where the radiator hose goes into the thermostat and there was some where the thermo was but wasnt too bad. appreciate the video

swivelgate says:

Great video, I need to change my thermostat and this showed me how and saved me a few bucks also.

Alex says:

Could I follow the same steps to replace the thermostat on a 95 Ford ranger. 2.3L or am I missing how they differ?

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