EGR Coolant Temperature Override Switch Repair Costs
Here's a breakdown of typical repair costs for EGR coolant temperature override switch services:
Basic Switch Replacement
Estimated Cost: $225-$300
- Labor (1.5-2 hours @ $125/hour): $187.50-$250
- Parts: $35-$50
Complex Switch Replacement
Estimated Cost: $375-$500
- Labor (2.5-3 hours @ $125/hour): $312.50-$375
- Parts: $60-$125
- Includes additional diagnostic time and potential coolant system service
Full System Diagnosis and Repair
Estimated Cost: $500-$750
- Labor (3-4 hours @ $125/hour): $375-$500
- Parts: $125-$250
- Includes comprehensive system testing, coolant flush, and related component inspection
Note: Prices may vary depending on vehicle make and model. Additional repairs may be necessary if related components are damaged.
EGR Coolant Temperature Override Switch Repair Procedures
Ford 7.3L Powerstroke (1994-2003)
Location:Located on the driver's side cylinder head near the EGR valve
Repair Steps:
- Allow engine to cool completely
- Drain coolant from the system until level is below the switch
- Disconnect the electrical connector from the switch
- Using a deep socket, carefully remove the old switch
- Clean the mounting surface thoroughly
- Install new switch with thread sealant
- Reconnect electrical connector
- Refill coolant system
- Start engine and check for leaks
Dodge 5.9L Cummins (1998.5-2002)
Location:Mounted on the thermostat housing
Repair Steps:
- Ensure engine is completely cool
- Partially drain cooling system
- Remove electrical connector
- Use appropriate wrench to remove switch
- Clean mounting surface
- Install new switch (torque to specifications)
- Reattach electrical connector
- Refill coolant
- Test system operation
GM 6.6L Duramax (2001-2004)
Location:Located on the passenger side of the engine near the EGR cooler
Repair Steps:
- Wait for engine to cool down completely
- Drain coolant to appropriate level
- Disconnect battery
- Remove electrical connector from switch
- Remove switch using correct size socket
- Clean threads and mounting surface
- Install new switch with proper torque
- Reconnect electrical connector
- Reconnect battery
- Refill coolant system
- Start engine and verify proper operation
General Notes:
- Always use OEM or high-quality replacement parts
- Ensure proper coolant mixture when refilling
- Check for diagnostic trouble codes after repair
- Consider replacing related gaskets while system is apart
Warning: These procedures should only be performed by qualified technicians. Improper installation can result in coolant leaks or system malfunction.
Understanding EGR Coolant Temperature Override Switches

AnEGR Coolant Temperature Override Switchis a specialized component in a vehicle's Exhaust Gas Recirculation (EGR) system. Its primary function is to monitor and control the temperature of the engine coolant as it relates to EGR operation.
How It Works
The EGR Coolant Temperature Override Switch:
- Monitors engine coolant temperature
- Prevents EGR operation when the engine is cold
- Enables EGR function only when proper operating temperature is reached
- Helps maintain optimal engine performance and emissions control
Why It's Important
This switch plays acrucial rolein your vehicle's emission control system by:
- Ensuring proper engine warm-up
- Preventing poor engine performance during cold operation
- Maintaining efficient emissions control
- Protecting engine components from unnecessary wear
Signs of Failure
Common symptoms of a failing EGR Coolant Temperature Override Switch include:
- Check Engine light illumination
- Rough idle when cold
- Increased emissions
- Poor fuel economy
Regular maintenance and prompt replacement of faulty EGR Coolant Temperature Override Switches help ensure optimal vehicle performance and compliance with emissions standards.
Common Failure Symptoms: EGR Coolant Temperature Override Switch
EGR Coolant Temperature Override Switch: Signs of Failure & Maintenance Guide
Common Signs of EGR Coolant Temp Override Switch Failure:
- Check Engine Light illumination
- Engine running rough during warm-up
- Increased emissions during engine warm-up period
- Failed emissions test
- Poor fuel economy
- Irregular engine idle
Typical Service Schedule:
- Inspection recommended every 60,000 miles
- Testing of switch operation during routine emissions system checks
- No specific replacement interval - replace only when failing or failed
- Visual inspection of wiring and connections during regular maintenance
Preventative Maintenance Tips:
- Keep cooling system properly maintained
- Address any coolant leaks promptly
- Ensure proper coolant concentration
- Check electrical connections for corrosion during routine service
Note: Service intervals may vary based on vehicle make, model, and operating conditions. Always consult your vehicle's owner manual for specific maintenance schedules.
How It Works
- Get a quote online or set-up a time to have your vehicle looked at.
- Pick time slots that work for you, easily, online.
- We will confirm appointments and send reminders.
- Our mechanics bring everything that is needed to you.
- All you have to do is provided a safe area for the work to be performed.
What we need from you
- A safe place to work on your vehicle
- No working on the side of busy roads
- No working on unstable or steep surfaces.
- We do not perform repairs during severe weather.
- Authorization from a property owner or management.
- Repair work done in a parking lot or at your requires permission.
- We do not do repairs in areas restricted by law.
Common Questions
Service Area
Our primary service area is greater Grand Rapids and includes Comstock Park, East Grand Rapids, Grandville, Kentwood, Walker, and Wyoming
Our secondary service area is provided by our Belding location and includes: Belding, Greenville, Ionia and the sorrounding areas.
Contact us if you have any questions about where we provide services.