Paint thickness gauge. 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 gauge. range from magnetic pull type to sophisticated electronic types, and are available from a variety of sources. The older magnetic type gauge., 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 gauge.
have improved accuracy ranges. Most gauge. are confined to checking either ferrous metal, steel, non-ferrous metal, or aluminum panel.
At this time, there are no viable gauge. for reading film thickness on composite (SCM doors, RIM fenders) panels. The more sophisticated (ETG) electronic paint thickness gauge. digital type gauge. are able to read film thickness on both ferrous and non-ferrous metal panel.
Digital ETG gauge. may have an accuracy range of 1 percent and include thickness standards for recalibration. The following paint thickness gauge. are available. Call 1-800-GM-TOOLS for information:
Paint Thickness Gauges
Clearcoat Thickness
The clearcoat on the vehicle is typically 0.059-0.078 mm (1.5-2 mils [0.0015-0.0020 in]) thick. The clearcoat contains ultraviolet screeners. Removing more than 0.5 mils (0.019 in) of the clearcoat may result in early paint failure.
Environmental Fallout (Acid Rain)
Rail Dust Damage RepairTyre and Wheel Removal and Installation
Removal Procedure
Raise and suitably support the vehicle. Refer to Lifting and Jacking the
Vehicle.
Remove the wheel center cap.
Mark the relationship of the wheel (2) to the hub.
Remove the wheel nuts (1).
Warning: If penetrating oil gets on the vertical surfaces between the ...
Installation Procedure
Cut the body lock pillar outer panel in corresponding locations to fit
the remaining original panel. The sectioning joint should be
trimmed to allow a gap of one-and-one-half-times the metal thickness at the
sectioning joint.
Create a 50 mm (2 in) backing plate from the unused porti ...
Maintenance Schedule
Owner Checks and Services
At Each Fuel Stop
• Check the engine oil level.
Once a Month
• Check the tire inflation pressures.
• Inspect the tires for wear.
• Check the windshield washer fluid level.
Engine Oil Change
When the CHANGE ENGINE OIL SOON DIC message or Code 82 DIC message dis ...