Pinpoint Test D: Steering System Drift/Pull/Wander
- D1 CHECK FOR TIRE PULL
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- Rotate the front wheel and tire assemblies side-to-side. .
- Carry out a road test on a smooth, flat road.
- Does the vehicle drift/pull? .
- Yes
: If vehicle pulls in the opposite direction, GO to D2.
If vehicle pulls in original direction, GO to D3.
- No : Concern has been corrected.
- D2 ROTATE THE WHEEL AND TIRE ASSEMBLIES FRONT TO REAR
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- Rotate the front wheel and tire assemblies front to rear. .
- Carry out a road test on a smooth, flat road.
- Does the vehicle drift/pull? .
- Yes : GO to D3.
- No : Concern has been corrected.
- D3 CHECK THE STEERING COLUMN INTERMEDIATE SHAFT
.NOTE: Be sure to keep the clockspring centered when disconnecting the intermediate shaft. Refer to AIR BAG RESTRAINT SYSTEMS .
- Check the steering column and intermediate shaft for grounding.
- Disconnect the steering column intermediate shaft at the steering column.
- Inspect the steering column intermediate shaft U-joints for looseness or wear.
- Are the steering column intermediate shaft universal joints OK? .
- Yes : GO to D4.
- No : INSTALL a new steering column intermediate shaft. REFER to STEERING COLUMN .
- D4 CHECK THE STEERING GEAR MOUNTING
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- Check the steering gear mounts for looseness or wear.
- Are the steering gear mounts OK? .
- Yes : GO to D5.
- No : INSTALL new steering gear mounts. REFER to POWER STEERING .
- D5 CHECK THE STEERING GEAR
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- Carry out the Steering Gear Valve component test. REFER to COMPONENT TESTS .
- Is the steering gear valve OK? .
- Yes : GO to D6.
- No : REPAIR or INSTALL a new steering gear. REFER to POWER STEERING .
- D6 CHECK THE SUSPENSION COMPONENTS
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- Check for loose or worn suspension components. Refer to FRONT or REAR - EXCEPT COBRA or REAR - COBRA in Suspesion .
- Are the suspension components OK? .
- Yes : GO to D7.
- No : INSTALL new suspension components. REFER to FRONT in Suspesion or REAR - EXCEPT COBRA or REAR - COBRA in Suspesion .
- D7 CHECK THE WHEEL ALIGNMENT
.NOTE: The vehicle will tend to pull toward the side with the least positive caster and the most positive camber.
- Using a suitable alignment system, measure the wheel alignment settings. Refer to WHEEL ALIGNMENT PROCEDURES .
- Are the alignment settings within specifications? .
- Yes : CHECK for correct frame alignments. .
- No : ADJUST the alignment angles to specifications. DO NOT exceed specifications. TEST the system for normal operation.