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September 8, 2010
Regular Vehicle Maintenance
While most import and domestic vehicles are trouble-free, I think consumers depend too much on their reliability tending to shy away from maintenance schedules. Why is that? Forgetfulness? Cost?
Vehicles that aren’t maintained can be more costly. No one likes surprises, but in the long run, maintenance is a money saver adding many years of trouble free operation plus increases the vehicle’s life span. Bottom line—encourage consumers to practice preventative maintenance. All moving parts are prone to wear; mechanical friction is the primary cause of wear and failure. Heat and corrosion are other factors.
Remind your customer to have a maintenance check-up. Most shops offer a free brake and chassis inspection and consumers should take advantage of this.
 Inspection—Brakes
The inspection should begin by checking dashboard-warning lights—they’re warning signs telling you one or more systems are faulty and need attention. If the ABS light is on more diagnostics will have to be performed. Check the brake fluid level as low fluid can indicate worn pads or a leak in the system. Road test the vehicle to check braking performance, apply and release the brakes, check for any brake pull and noise.
While the car is on the hoist, perform a visual inspection of the brake pads and rotors; check for any signs of rust around the caliper hardware, check the brake hose fittings. Pay particular attention to brake hose swelling or rust on the brackets. Make sure the hoses are properly secured.
Concerning rear brakes; remove the drums, check the brake shoes for wear, wheel cylinders for leaks. You may find brake dust inside the drum. Clean the drum surface with a brake clean solution and adjust the brakes. If the vehicle has rear discs, check the rotors and pads plus the emergency brake system for proper operation making sure the brake cables are not holding up or binding.
 Suspension
While road testing, check the handling and steering response for unusual noise. Remember, there are just as many moving chassis parts in the rear as the front of the vehicle, so checkups should include both. Inspect the inner and outer tie rods for play, check for cracked ball joint boots, assess control arms and bushings.
Idler arms
Using the hand to apply force for up and down movement is not precise. Some technicians will replace all idler arms showing movement, but that’s not always correct—most vehicles allow 1/8” to1/4” of up and down movement. Use the manufacturer’s recommended procedures with specifications.
Dry Park Check
This is an excellent method for checking all steering parts. ”Dry” refers to performing checks prior to greasing the associated linkage parts. “Park” means the vehicle is preferably parked on a vehicle lift, rear wheels secured or resting in park on the garage floor. Two people are needed to perform the tests. One rapidly rocks the steering wheel back and forth while the other observes and feels specific joint locations though the entire steering linkage. Check for any loose, bent, corroded or missing parts, stripped threads and torn boots.
Take a good look at coil springs. If any rust is found on the coil’s surface, it may be cracked. Check front and rear sway bar links and bushings
After your final inspection, explain to the customer what part/parts require immediate attention. When the repairs are done, give your customer a call, he’ll appreciate your concern. You’ll find that preventative maintenance programs are profitable and a satisfying experience for your customer and your shop. | |
