FORD Explorer Coolant leak repair
Engine, Fuel & Emissions system·2003–2005 · FORD repair guide
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Coolant leak repair
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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 hoses, pipes and the expansion tank carry hot coolant between the engine, radiator and heater; a split hose or cracked tank causes rapid coolant loss and overheating. The cooling fan ensures airflow at low speed.
Warning signs
How to tell your FORD Explorer needs this repair
- Engine temperature rising above normal or overheating warning light
- Coolant puddle forming under the front of the car
- Low coolant warning light
- Sweet smell from the engine bay
- Visible coolant spray or wet patches on engine bay components
Common causes
Why FORD Explorer vehicles need this repair
- 1.Inhibitor depletion — coolant additives break down over 2–3 years
- 2.Leaks from hoses, the water pump or radiator diluting the mixture
- 3.Overheating events accelerating coolant chemistry breakdown
- 4.Incorrect water-to-coolant ratio allowing freezing or boiling
What affects the price
Why your quote may differ
- Which component has failed (hose, pipe, tank or fan)
- Whether a full coolant flush and refill is included
- Electric cooling fan with control module vs mechanical belt-driven fan
At a glance
Key facts about this repair
Labour time
1–5 hours
at a typical garage
DIY difficulty
Involved
Risks of ignoring this
What happens if you delay
- Engine overheating leading to head gasket failure — one of the most expensive car repairs
- Warped or cracked cylinder head from sustained thermal damage
- Sudden breakdown as the engine reaches critical temperature
- Irreversible internal engine damage the longer overheating continues
Full repair guide
Everything you'd want to ask a trusted mechanic
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Get the exact price for your FORD Explorer
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Estimates in seconds · Always confirm with a qualified mechanic
Example estimate
Coolant leak repair
Select your vehicle above to get your personalised estimate