How much does it cost to replace a thermostat in a F150?

A typical thermostat replacement in a Ford F-150 runs about $200 to $400 when you factor in parts and labor. For DIY enthusiasts, parts can be as low as $15 to $60. The exact price depends on the engine, whether the thermostat housing or coolant also needs replacement, and the local labor rate.

Cost snapshot: what to expect

The figures below break down the main cost components and what influences them. Keep in mind that regional prices and engine layout can shift these numbers.

• Parts and materials: thermostat kit, gasket, and coolant. Typical cost range: $15–$60 depending on brand and whether the housing is included.


• Labor: replacing a thermostat usually takes 1–2 hours for a standard engine. Shop labor rates commonly run from about $80 to $120 per hour, varying by region and shop.


• Additional components and services: if the thermostat housing must be replaced or if a coolant flush or hose replacement is needed, add roughly $20–$150 for parts and 0.5–1.5 hours of extra labor.

In normal cases, a straightforward thermostat replacement at a shop typically falls in the $180–$320 range. If extra cooling-system work or premium parts are involved, the total can rise toward $350–$500 or more. DIY cost can be substantially lower if you already own the necessary tools and workspace.

What drives the price variations

Several factors push the final bill up or down. Understanding them helps you compare quotes and avoid surprises.

• Engine type and thermostat location: some F-150 engines place the thermostat in a harder-to-reach spot, increasing labor time.


• Regional labor rates: urban and high-cost areas typically charge more per hour than rural shops.


• Parts choice: OEM (dealer) parts tend to be pricier than aftermarket options, though fit and warranty considerations vary.


• Whether the housing or other cooling-system components are involved: a damaged housing or additional hoses can add cost.


• Cooling system service: coolant replacement or a flush adds parts and labor to the job.

Because these factors can swing the price by hundreds of dollars, it’s wise to get multiple, itemized quotes and ask what’s included (parts, labor, coolant, and any diagnostics).

DIY vs. professional replacement

Deciding whether to do it yourself or hire a pro depends on skill, tools, and risk tolerance. Doing it yourself can save money but requires care and proper disposal of coolant.

• DIY cost estimate: parts typically $15–$60; no labor charge if you do the work yourself. You’ll also need basic tools and a safe workspace.


• Time commitment: plan roughly 1–3 hours depending on engine layout and your experience.


• Risks and considerations: improper installation can cause leaks or overheating; incorrect cooling-system bleeding can lead to air pockets.


• When to hire a professional: if you’re unsure about draining and refilling coolant, if the thermostat housing is damaged, or if your vehicle is still under a powertrain warranty.

Bottom line: DIY can lower the overall cost, but professionals provide a warranty on the repair and reduce the risk of installation errors.

Summary

Replacing a thermostat in a Ford F-150 is a common, generally affordable repair. Expect about $180–$320 at a shop for a straightforward job, with higher totals if the thermostat housing, hoses, or a coolant service are included. Parts-only DIY costs typically range from $15 to $60. To get the best value, obtain several itemized quotes, consider engine-specific accessibility, and decide between DIY and professional service based on your tools, expertise, and comfort with handling automotive cooling systems.

How do I know if my F-150 thermostat is bad?

The way to tell if your thermostat is working, is to squeeze the upper radiator hose while it is hot, if it stays hard, and is not pliable. Your thermostat is stuck, and needs replacing.

Can you still drive your car if the thermostat is bad?

You can technically drive your car with a bad thermostat, but whether it's safe depends on how it failed. If it's stuck open, you can drive it, but the engine will run too cold, consume more fuel, and wear out faster. If it's stuck closed, it's very dangerous, and you should not drive it, as the engine will overheat and could suffer severe damage. 
If the thermostat is stuck open

• Symptoms: Your engine may take longer to warm up and may not reach its proper operating temperature. 
• Dangers:
  • Lower fuel efficiency: The engine will use more gas. 
  • Increased engine wear: Running too cold can lead to sludge buildup and shorten the engine's life. 
  • Reduced power: The engine may feel sluggish. 
• Recommendation: It's best to drive only a short distance if necessary and get it fixed soon. 

This video explains what to do if your thermostat is stuck open and why you should get it fixed soon: 59sMake It Easy MechanicYouTube · Jun 10, 2023
If the thermostat is stuck closed 

• Symptoms: The engine will quickly overheat, and the temperature gauge will climb into the red zone. 
• Dangers:
  • Severe engine damage: The engine can self-destruct or suffer permanent, costly damage. 
• Recommendation: Pull over immediately and turn off the engine to let it cool down. Do not drive it. 

This video explains what to do if your thermostat is stuck closed and why you should not drive your car: 37sMy Auto LifeYouTube · Sep 4, 2024

How much will a mechanic charge to replace a thermostat?

The labor cost for a thermostat replacement is generally between $80 and $300 for a home HVAC system or $120 to $220 for a car, with hourly rates typically ranging from $50 to $150. For HVAC, the job can take 30 minutes to 3 hours depending on complexity, while a car thermostat may take 1 to 2 hours. Factors like the type of thermostat, vehicle make, and location can cause these costs to vary.
 
Home HVAC thermostat replacement

• Hourly Rate: Expect to pay between $50 and $150 per hour for an HVAC technician or electrician.
• Flat Fee: Some professionals charge a flat rate, which can range from $75 to $250.
• Average Labor Cost: The total labor cost is typically between $80 and $200, but it can be higher for complex jobs.
• Job Duration: The installation can take between 30 minutes and 3 hours, depending on whether the location needs to be changed, new wiring is required, or the thermostat is a smart model that needs programming. 

Car thermostat replacement

• Hourly Rate: Mechanics typically charge between $80 and $110 per hour. 
• Average Labor Cost: The labor cost is often between $120 and $220. 
• Job Duration: The replacement itself usually takes 1 to 2 hours. 
• Factors that increase cost: More complex engine designs, like those found in luxury or performance vehicles, can take longer and cost more in labor. 
• Other considerations: It is important to also budget for the cost of new coolant and a new gasket, which are essential for a proper repair. 

How much does it cost to replace a thermostat in a Ford F150?

The cost to replace a Ford F-150 thermostat typically ranges from $300 to $750, with parts being inexpensive but labor adding significant cost. The total price varies depending on the vehicle's year, engine, and labor rates, so it's best to get a specific quote for your truck. 
Cost breakdown

• Parts: A new thermostat and gasket usually cost between $30 and $60. 
• Labor: Professional labor is the largest factor, typically ranging from $150 to $500 or more, depending on the shop and vehicle accessibility. 
• Total: The estimated range is from approximately $307 to $737, depending on the specific model year and engine. 

What influences the cost?

• Vehicle year and engine: Newer models and some engines (like turbo or diesel) can be more expensive due to part complexity or accessibility. 
• Labor rates: Mechanic labor rates vary by location and shop. 
• Additional parts: Some repairs may require a new thermostat housing or extra coolant, which increases the total price. 

Why get a quote?

• It's a good idea to get quotes from several local shops, as prices can vary significantly. 
• The cost can be lower if you have the right tools and are comfortable doing the replacement yourself, as the part itself is relatively inexpensive.