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 MANUALSMERCURY2009MILAN PREMIER, 3.0 1, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 542 (DRIVELINE SYSTEM - GENERAL INFORMATION)GENERAL PROCEDURESDRIVELINE ANGLE MEASUREMENT
2009 Mercury Milan Premier, 3.0 1, AWD
Driveline Angle Measurement
2009 Mercury Milan Premier, 3.0 1, AWDSECTION Driveline Angle Measurement
WARNING: This page is about a different car, the 2006 Mercury Montego, 2006 Ford Freestyle, and 2006 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
SPECIAL TOOL(S)
| Anglemaster II Driveline Inclinometer/Protractor 164-R2402 or equivalent |
NOTE:
- This procedure does not apply to Constant Velocity Joints (CVJ), flex couplers or double cardan joints that are used in some driveshafts. This check is for single cross and roller style joints found in the driveshafts.
- Prior to checking driveline angularity, inspect the U-joints for correct operation.
- An incorrect driveline angle can cause a vibration or shudder. For additional information, refer to PINPOINT TEST A: BRAKE VIBRATION/SHUDDER DIAGNOSIS .
- Driveline angularity is the angular relationship between the engine crankshaft, the driveshaft and the rear axle pinion. Factors determining driveline angularity include ride height, rear spring and engine mounts.
- Carry out the following preliminary setup steps:
- Inspect the U-joints for correct operation.
- Park the vehicle on a level surface such as a drive-on hoist, or back onto a front end alignment rack.
- Verify the curb position ride height is within specifications with the vehicle unloaded and all of the tires are inflated to their normal operating pressures.
- Calibrate the special tool by placing the tool on a clean, flat level section of the frame rail and press the ALT-ZERO button.
- If equipped, remove the snap ring to allow access to the base of the U-joint cup. Make sure the tool is seated against the U-joint cup.
- Rotate the driveshaft until the flange universal joint cup is parallel with the floor. This will simplify taking measurements.
All vehicles
Vehicles with flat flanged, split pin or slip flanged U-joints
NOTE:
RENDER: 1.0x
NO RELATED
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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.