Clearview Tire and Auto Service

1079 North Main Street, Hopkinsville, KY 42240

EGR (Exhaust Gas Recirculation) Valve & System


Does your engine knock when you accelarate hard or does the engine shake, sputter and maybe even stall when you come to a stop?  You may have and EGR system problem.  Trouble with the EGR system DOES NOT MEAN YOU NEED A NEW EGR VALVE!








The above are examples of EGR valves. 


As the name implies, the Exhaust Gas Recirculation System routes some of the exhaust gas back to the intake of the engine.  The small amount of exhaust gas lowers the peak temperature of the buring of the fuel inside the engine.  This dramtically reduces the generation of a major pollutant called Nitrous Oxides, simply burnt nitorgen.


EGR valves are either vacuum operated or electrically operated.  Either way, the Power train Control Module (the computer that runs the engine) uses information from various sensors to calculate the correct amount of EGR that is needed at the moment.  The valve is either opened by sending electricity to the valve or by applying a metered amount of vacuum to the valve.


The EGR system is a Goldielocks system.  Too much exhaust gas recirculation and the engine coughs, sputters and stalls.  Too little and the engine can knock, ping and otherwise carry on.  When knock or ping is detected by the Knock Sensor, the computer will retard the ignition timing, resulting in poor engine performance and poor gas mileage.


If you think your engine has a bad EGR valve or a malfunctioning EGR system, bring your vehicle to Clearview Tire & Auto Service for a correct diagnosis and professional guaranteed repairs which includes our Certified Auto Repair Nationwide Warranty.  We're in Hopkinsville, not far from Ft. Campbell and we've been here since 1952. Most repairs include one year FREE towing and roadside assistance, good 24/7 coast-to-coast.

Services | Nationwide warranty | 24 Hour Roadside Assistance | ABS Anti-lock Brakes | Air Conditioning Service | Air Intake Temperature Sensor | Alternator | Axle repair | Ball Joints | Barometric Pressure Sensor | Batteries, Alternators and Starters | Belts, Hoses, Pulleys and Tensioners | Brake Caliper | Brake Service & Systems | Camshaft Position Sensor | Check Engine / Service Engine Soon Light | Clutch | Clutch Master Cylinder | Clutch Slave Cylinder | Computerized Engine Analysis | Coolant Temperature Sensor | Cooling System Repair & Maintenance | Crankshaft Position Sensor | CV & Drive Axle | Differential Service & Repair | EGR (Exhaust Gas Recirculation) Valve & System | EGR Valve Position Sensor | Engine Repair | Exhaust | Exhaust Pressure Sensor or Transducer | Fuel Filter | Fuel Injection Service | Fuel Pump | Head Gasket | Headlight Restoration | Heater and Heater Core | Knock Sensor | Manifold Absolute Pressure (MAP) Sensor | Mass Air Flow Sensor / Meter | Master Cylinder (for brakes) | Oil Leaks | Oil Change Service | Oil Pan Gasket | Oxygen Sensor | Power Steering | Radiator | Roadside Assistance | Scheduled Maintenance | Shocks and Struts | Stabilizer Bar, Links and Body Bushings | Starter | Steering and Suspension | Throttle Position Sensor | Timing Belt | Tire Balance | Tire Replacement | Tire Rotation | Tire Truing | Towing & Roadside Assistance | Transmission | Tune-up | Used Car Pre-purchase Inspection | Valve Cover Gasket | Water Pump | Vehicle Service | Wheel Alignment | Wheel Balance | Wheel Bearing | Wheel Cylinder | Wheel Speed Sensor | Window Regulator and Window Glass | Windshield Repair


Clearview Tire and Auto Service

Main Office
1079 North Main Street
Hopkinsville, KY, 42240


  • Monday 7:00AM-5:00PM
  • Tuesday 7:00AM-5:00PM
  • Wednesday 7:00AM-5:00PM
  • Thursday 7:00AM-5:00PM
  • Friday 7:00AM-5:00PM
  • Saturday Closed
  • Sunday Closed

© Clearview Tire and Auto Service. All Rights Reserved.