Pinpoint Test G: Rear Suspension Noise
WARNING: This page is about a different car, the 2007 Mercury Mariner and 2007 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
- G1 ROAD TEST THE VEHICLE NOTE: An assistant will be needed for this road test.
- Test drive the vehicle.
- During the road test, drive the vehicle over a rough road. Using ChassisEARs, determine from which area/component the noise is originating.
- Is there a squeak, creak or rattle noise?
- YES : Go to G2.
- NO : The suspension system is OK. Conduct a diagnosis of other suspect systems.
- G2 REAR SHOCK ABSORBER/STRUT CHECK
- With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to JACKING AND LIFTING article.
- Check the rear shock absorber/strut mounts for loose bolts or nuts.
- Check the rear shock absorbers/struts for damage. Carry out a shock absorber check.
- Are the rear shock absorbers/struts loose or damaged?
- YES : TIGHTEN to specifications if loose. INSTALL new rear shock absorbers/struts if damaged. REFER to REAR SUSPENSION article. TEST the system for normal operation.
- NO : Go to G3.
- G3 CHECK THE REAR SPRINGS
- Check the rear springs and rear spring mounts/brackets for wear or damage.
- Are the rear springs or spring mounts/brackets worn or damaged?
- YES : REPAIR or INSTALL new components as necessary. REFER to REAR SUSPENSION article. TEST the system for normal operation.
- NO : Go to G4.
- G4 CHECK THE CONTROL ARMS/TRAILING ARMS
- Inspect the control arm/trailing arm bushings for wear or damage. Check for loose control arm/trailing arm bolts.
- Inspect for twisted or bent control arm/trailing arms.
- Are the control arm/trailing arms loose, damaged or worn?
- YES : REPAIR or INSTALL new components as necessary. REFER to REAR SUSPENSION article. TEST the system for normal operation.
- NO : Go to G5.
- G5 CHECK THE STABILIZER BAR/TRACK BAR
- Check the stabilizer bar/track bar bushings and links for damage or wear.
- Check the stabilizer bar/track bar for damage.
- Check for loose or damaged stabilizer bar isolators or brackets.
- Are the stabilizer bar/track bar components loose, worn or damaged?
- YES : REPAIR or INSTALL new components as necessary. REFER to REAR SUSPENSION article. Test the system for normal operation.
- NO : Suspension system OK. CONDUCT a diagnosis of other suspect systems.