Chevrolet Sonic Repair Manual: Paint Gauges
Paint thickness gauges measure the total thickness of the vehicle finish. It is important to accurately measure the thickness of the finish on each vehicle as the thickness of the finish will vary on each vehicle. Use a paint gauge before the sanding process in order to accurately measure how much finish there is to remove before, during, and after the sanding process. Paint gauges range from magnetic pull type to sophisticated electronic types, and are available from a variety of sources. The older magnetic type gauges, at best have a 5?€‰percent accuracy range and are not sensitive enough to detect removal of 0.02?€‰mm 0.5?€‰mil (0.0005?€‰in) clearcoat. The newer type magnetic gauges have improved accuracy ranges. Most gauges are confined to checking either ferrous metal, steel, non-ferrous metal, or aluminum panel. At this time, there are no viable gauges for reading film thickness on composite (SCM doors, RIM fenders) panels. The more sophisticated (ETG) electronic paint thickness gauges digital type gauges are able to read film thickness on both ferrous and non-ferrous metal panel. Digital ETG gauges may have an accuracy range of 1?€‰percent and include thickness standards for recalibration. The following paint thickness gauges are available. Call 1-800-GM-TOOLS for information:
- Paint Thickness Gauges
-
- 147-5437-ETG Standard model
- 147-5437-ETG-P Standard model with print option
- 147-5437-N-ETG-N Non-ferrous model for aluminum panels
- 147-5437-NP-ETG-NP Non-ferrous model with print option
- 147-54437-SD-ETG Steel and aluminum gauge
Liftgate Emblem/Nameplate Replacement (Hatchback)
Liftgate Emblem/Nameplate Replacement
Callout
Component Name
1
Liftgate Emblem/Nameplate Assembly
Caution: Refer ...
Radiator Grille Emblem/Nameplate Replacement
Radiator Grille Emblem/Nameplate Replacement
Callout
Component Name
Preliminary Procedure
Remove the front bumper fascia. Refer to ...
Other materials:
Braking
Braking action involves perception time and reaction time. Deciding to push the
brake pedal is perception time. Actually doing it is reaction time.
Average driver reaction time is about three-quarters of a second. In that time,
a vehicle moving at 100 km/h (60 mph) travels 20m (66 ft), which co ...
Front Side Door Window Regulator Handle Replacement
Front Side Door Window Regulator Handle Replacement
Callout
Component Name
1
Front Side Door Window Regulator Handle Clip
Procedure
Use the appropriate tool, remove the clip from handle.
2
...
Automatic Transmission Shift Lock Control Function Check
Warning: When you are doing this inspection, the vehicle could move
suddenly. If the vehicle moves, you or others could be injured.
Before starting this check, be sure there is enough room
around the vehicle. It should be parked on a level surface.
Apply the parking brake. Be read ...
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