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.
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We pride ourselves in putting our customers first. Our mechanics know the importance of treating every vehicle like their own.
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.
Called the shop spoke to John. Explained to him how my driver was at Love's Truck stop near by. He couldn't move because the diesel pump was cracked Love's kept trying to send me to Freightliner. Glad i came across Specialized truck repair in Google. John got my truck towed to his shop for a reasonable prices. They got the part for me from freightliner and got it in the truck in half a day. Price was very reasonable and since they own the tow truck I got a good price on that. I highly recommend this shop If you are a OTR driver and are looking for a shop that won't take advantage of you.
They did a quality repair job on rusted brake lines on my truck. Brakes work much better now. Fast service. Very reasonable pricing. I plan on going back for anymore service needed for my truck or car.
This place was a great place to get a repair, they were very nice and fast and professional and it was very cost efficient. Highly recommend giving this shop a try! Stephon really knew what he was doing. Awesome Job!!
These guys are absolutely AMAZING!!!! I had an issue with my trailer and they went above and beyond anything I could've asked for to ensure that I was back on the road!!!! I have never had customer service this awesome from anywhere else!!!
Had me back on the road in no time. Great business here!
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)
Choosing a shop for an engine overhaul isn't easy...I'm glad I went with these guys. they have a separate shop dedicated to engines, isaac did a great job rebuilding my cummins!
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
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.
Went in for an oil change, found out that the oil pan was cracked and also there was damage to other parts of the car and so it turned out to be a very expensive repair. Took some extra time but was able to get all the needed parts in and car is now working great. Friendly service and quality job.
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