Dealers like to tell their customers that they have to come back to them for repairs or maintenace services during the warranty period or their warranty will be void. This is absolutely false! According to the Magnusson-Moss act, if you are required to use a certain brand of parts or go to a specific location to keep your warranty, those parts or services must be offered free of charge by the company providing the warranty.

Excel Auto Services

Services Offered

  • Oil Filter and Maintenance Service
  • Brakes
  • Emission diagnosis and repair
  • Shocks and struts
  • Engine repair and overhaul
  • Transmission/drive train repairs
  • Electronic and Electrical Repairs
  • Check Engine Light Diagnosis
  • Timing belt and related parts replacement
  • Air Conditioning
  • Heaters

Open from 8:00am to 5pm Monday - Friday and 8am to 12pm on Saturdays


Engine/Powerplant Diagnosis and Repair

  • Check Engine Light Diagnostics
  • Engine Tune-up
  • Oxygen Sensor Replacement
  • Fuel Injection Systems
  • Ignition Systems
  • Performance and Drivability Maintenance
  • Major & Minor Engine Rebuilds
  • Engine Replacement
Brake System & Traction Control Repair

  • Brake Pads & Rotors
  • Brake Shoes & Drums
  • Master Cylinder
  • Brake Lines & Hoses
  • ABS System Diagnosis & Repair
  • Traction Control System Diagnosis & Repair
Electrical System Diagnosis & Repair

  • Batteries
  • Alternators & Starters
  • Electrical Accessories
  • Headlights / Exterior & Interior Lighting & Bulbs
  • Engine Management Systems/Computer
  • Interior Management Systems/Switches
Heating & Cooling System Maintenance & Repair

  • Air Conditioning
  • Coolant Flush
  • Hose Replacement
  • Thermostat Replacement
  • Water Pump
  • Heater Core Replacement
  • Radiators
Scheduled Maintenance Programs

  • Oil Changes & Lube
  • Factory Scheduled Maintenance - 30,000, 60,000 & 90,000 miles
  • Timing Belt Service
  • Tune-ups
  • Transmission Service
  • Engine Coolant Automated Flushing / Replacement
  • Wiper Blades
Transmission Service & Repair

  • Automatic Transmissions
  • Manual Transmissions
  • Clutches
  • Four-wheel Drive
  • Front-wheel Drive
  • Rear-wheel Drive



The owner/operator "Mark Orbom" is a ASE Certified Master Mechanic with Over 45 years of experience.

Factory Trained

Excel Auto Service mechanics have hundreds of hours of factory training from major brands including BMW, VOLKSWAGON, MERCEDES BENDS, GENERAL MOTORS, FORD, DODGE/CHRYSLER and KIA.

ASE Master Mechanics

Excell Auto Services only hires mechanics that are ASE Certified Master Mechanics with a total of over 75 years of automotive repair experence.


Excell Auto Services specializes in custom hotrod modifications and owns and races a fleet of modified hotrods.

Contact Us

Email Us

Email me at

Excel Auto Services

1206 S Cumberland St
Morristown, TN 37813


(423) 254-1637