Truck EGR Cooler Repair Service in Tennessee & Mississippi

For professional truck EGR Cooler Repair Services from expert diesel mechanics in Tennessee & Mississippi, call Specialized Truck Repair today.

EGR coolers are a well known fragile point on most diesel engines. It is important to take care of your truck's EGR exhaust cooling system and protect your engine.

What Does an EGR Cooler Do?

The cooler in your truck's EGR system works with the EGR valve to create a mix of air, fuel, and exhaust gasses that lower emissions. Exhaust Gas Recirculation (EGR) lowers combustion temperatures by diluting the air/fuel mixture with a small amount of inert exhaust gas. This process has no effect on the performance of your truck but it does reduce the change of chemical reactions that form pollutants. That being said, it is far more effective if the exhaust gas is cool, not hot. That is where the cooler comes in. The flow of exhaust gases through the EGR cooler is controlled by the vehicle’s computer via the EGR valve. Since the EGR cooler connects the exhaust and cooling systems of your engine, failures inside the cooler may lead to coolant loss, overheating, and engine damage, among other issues.

How Do I Know My Cooler is Going Bad?


Complete failure of your EGR’s cooling system could cause major damage to your engine. If you know what to look for, you may be able to spot your cooler’s failure before it becomes disastrous.

The most common first sign of failure is white exhaust smoke. This “smoke” is really steam from boiling water or coolant. This steam can be caused by a head gasket failure, a cracked EGR cooler or condensation inside the exhaust system.

As with any coolant leak, you may start noticing a lack of coolant in your overflow bottle. If you have to keep refilling your coolant system, and you don’t notice any drips on the ground, that coolant may be exiting through the exhaust via a leaking cooler.

Severe failures can lead to more serious problems such as connecting rods to bend, stretch head bolts, or blow the head gaskets, all causing severe engine damage.

How Can I Clean My EGR Cooler?

Replacing a cooler can get expensive. Failure is probably unavoidable, you may be able to extend the life of this part by keeping it clean. Clearing out soot and debris can restore an even flow through the cooler, which can reduce internal pressures and improve cooling performance.

There are several methods for cooler cleaning, but they all boil down to the same steps:

- Remove the cooler from the vehicle.

- Fill the cooler with a detergent.

- Let the cooler soak in the detergent to dissolve deposits.

- Thoroughly rinse the cooler to remove the loose deposits.

- Let the cooler dry, then reinstall it.

To clean really dirty passages, some repair shops place EGR coolers inside an ultrasonic cleaner. The ultrasonic waves vibrate the carbon loss while circulating detergent through the passages. This can speed up the cleaning process.

Book Online

Contact The Shop

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Specialized Truck Repair logo

A Truck Repair Shop You Can Trust.

We take responsibility for the quality of work we do. As mechanics, we know that every job needs to be done to 100% the best of our abilities. From quick turnaround times to efficient EOM and aftermarket parts sourcing to education and recommendations. Each and every Specialized Truck Repair shop believes in and operates by these standards.

Learn More
Low Downtime & Fast Turnaround
35+ years of experience
Open 24/7 for Roadside Service
No hidden fees or charges
Guaranteed Quality Parts
Highly-rated customer reviews
1-year warranty on labour and parts

Customer Reviews

We pride ourselves in putting our customers first. Our mechanics know the importance of treating every vehicle like their own.

Customer Reviews

We pride ourselves in putting our customers first. You can rest assured that our mechanics know the importance of treating every vehicle like their own.

Cherish P.

Cherish P.
Nashville, TN

We had our truck towed from the dealership.  We saved moneycoming here, even including the tow bill.  We also didn't have to wait 2 weeks like the dealership said it would take.

Ray Patterson

Ray Patterson

We were rolling through town on our way to GA and our RV blew a tire. Specialized had us back on the road in 1 hour. Awesome service

Peggy Bond Kinney

Peggy Bond Kinney

A trusted place to take your truck for repairs. Highly recommend.

L. Settles

L. Settles
Nashville, TN

These people took such great care of me. This is my 1st box truck but they had no problem going over the truck with a fine tooth comb or explaining different aspects and functions of the truck. The pricing was affordable as well. They have definitely won my business!!!Thanks guys!!!

Leah Bell

Leah Bell
Springfield, TN

Came in (mid crisis) after 9 other places said no..they got my baby fixed right up and didn't take a bite out of my budget! I will be back when she needs some TLC.

Donald Glaser Jr

Donald Glaser Jr

I’m very pleased with repair on my RV. When no one else would even schedule me they worked me in and replaced the fuel pump in my tank. Very pleased!

Jeffery Colton

Jeffery Colton

Being a Memphis native, we have been to about every diesel shop in the area over the years. Angel's used to own this building, but we heard there were new owners and we wanted to check on it. Turns out, its better than ever

Kristin Campbell

Kristin Campbell
Memphis, TN

We had an emissions problem on our Peterbilt. The tech was professional and courteous. I recommend these guys to anyone needing expertise

Carlos Medina

Carlos Medina
Fairview, TN

Just to compliment the great service provided by the lady (Groria) who took care of our truck trouble.Very knowledgeable and attentive..we got in and out in no time. Job well done ( From San Antonio tx)

Alom Rahman

Alom Rahman
Memphis, TN

Scott serviced us late into the evening to make sure we delivered on time. Great job!

24/7 Roadside Assistance

Our fleet of 6 fully-equipped trucks provide around-the-clock response to your mechanical, tire and brakes, air leaks, fluid leaks, emissions, or diagnostics problems.

615-878-9744