Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD2010FOCUS S, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1092 (ENGINE SYSTEM - GENERAL INFORMATION)DIAGNOSTIC TESTSENGINENOTES
2010 Ford Focus S, Standard
Diagnostic Tests: Engine: Notes
2010 Ford Focus S, StandardSECTION Notes
WARNING: This page is about a different car, the 2008 Ford RV Cutaway, 2008 Ford Econoline, 2008 Ford E450 Super Duty, and 2008 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
Special Tools
| Illustration | Tool Name | Tool Number |
|---|---|---|
| 12 Volt Master UV Diagnostic Inspection Kit | 164-R0756 or equivalent (Leak Detector) | |
| Dial Indicator Gauge with Holding Fixture | 100-002 (TOOL-4201-C) or equivalent | |
| Engine Cylinder Leak Detection/Air Pressurization Kit | 014-00708 or equivalent | |
| EngineEAR | 107-R2100 or equivalent | |
| EngineEAR/ChassisEAR | 107-R2102 or equivalent | |
| Oil Pressure Gauge | 303-088 (T73L-6600-A) | |
| Quick Disconnect Compression Tester | 134-R0212 or equivalent | |
| Vacuum/Pressure Tester | 164-R0253 or equivalent | |
| Vehicle Communication Module (VCM) and Integrated Diagnostic System (IDS) | software with appropriate hardware, or equivalent scan tool |
Material
| Item | Specification |
|---|---|
| Dye-Lite® Gasoline Engine Oil Leak Detection Dye 164-R3700 (Rotunda) |
- |
| Motorcraft SAE 5W-20 Premium Synthetic Blend Motor Oil XO-5W20-QSP (US); Motorcraft SAE 5W-20 Super Premium Motor Oil CXO-5W20-LSP12 (Canada); or equivalent |
WSS-M2C930-A |
There are 2 diagnostic paths that can be followed depending on the type of engine concern. Carry out either Inspection and Verification - Engine Performance or Inspection and Verification - NVH.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.