GM Service Manual Online
For 1990-2009 cars only

Measuring Front Alignment Angles

Important: 

   • Install the alignment equipment following equipment manufacturer's instructions. Measure the alignment angles and record the readings.
   • Jounce the front and rear bumpers three times to normalize suspension prior to measuring the angles.
   • If the caster angles are not within the specified range, inspect for damaged suspension and steering components and replace parts as necessary.

Front Camber and Caster

If camber and caster measurements do not fall within specifications (camber -0.5 to 1.5 degrees and caster 1.0 to 5.0 degrees), locate the causes first. Damaged, loose, bent, dented or worn suspension parts should be replaced. Refer to Front Suspension. If the problem lies in the body, repair the body to attain the specifications. Refer to Alignment Checking in Frame and Underbody. To prevent possible incorrect reading of camber or caster, move the vehicle front end up and down a few times (jounce) before inspection.

Camber and caster cannot be adjusted on this vehicle.