FORD Explorer Cooling system control sensor replacement
Engine, Fuel & Emissions system·2003–2005 · FORD repair guide
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Cooling system control sensor replacement
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FORD Explorer — What to know
The Explorer is Ford's mid-size SUV with a broad service network. The 3.5 EcoBoost V6 (2011–2019) is the most popular engine and is generally reliable. Known issues include cabin exhaust fume intrusion on 2011–2017 models and carbon buildup on EcoBoost direct injection engines.
What is this repair?
Plain-English overview
Coolant service — including replacement, system bleeding, pressure testing or sensor repair — maintains optimal engine temperature and prevents corrosion inside the cooling circuit. Modern long-life coolant should still be replaced every 3–5 years as inhibitors deplete.
Warning signs
How to tell your FORD Explorer needs this repair
- Temperature gauge reading higher than normal
- Coolant warning light or low coolant level alert
- Discoloured or rusty coolant visible in the reservoir
- Overheating under load or in traffic
- Heater output reduced (air lock in the system)
Common causes
Why FORD Explorer vehicles need this repair
- 1.Normal component wear over high mileage
- 2.Oil maintenance quality and adherence to change intervals
- 3.Operating temperature and thermal cycling over time
- 4.Age degrading seals, gaskets and rubber components
What affects the price
Why your quote may differ
- Type of coolant specified (OAT, HOAT, G11/G12/G13 — mixing types causes damage)
- Whether a pressure test reveals an underlying leak needing repair
- Electric coolant pump failure (common on BMW N-series and similar)
- System complexity on turbocharged or hybrid vehicles with multiple coolant circuits
At a glance
Key facts about this repair
Labour time
1–3 hours
at a typical garage
DIY difficulty
Moderate
Risks of ignoring this
What happens if you delay
- A minor issue becoming a significantly more expensive repair if ignored
- Secondary damage spreading to related components
- Possible roadside breakdown or sudden failure
- Failed roadworthiness inspection or MOT
Full repair guide
Everything you'd want to ask a trusted mechanic
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Related repairs
Other engine, fuel & emissions system repairs on the FORD Explorer
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Cooling system control sensor replacement cost on similar cars
Get the exact price for your FORD Explorer
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Estimates in seconds · Always confirm with a qualified mechanic
Example estimate
Cooling system control sensor replacement
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