Symptoms of a Faulty Heavy Duty EGR Cooler
Symptoms
Poor Heavy Duty EGR Cooler
EGR coolers or EGR coolers He
devices that cool the exhaust gases and work in conjunction with the SCR to reduce
emissions of nitrogen oxides (NOx) for heavy internal combustion engines.
The purpose of the EGR cooler is to help reduce emissions and meet
current emission standards set by the US Environmental Protection Agency. But
what happens if your EGR cooler starts to fail? What indicators
bad EGR cooler?
There are three main signs of an EGR cooler leak:
- White smoke. When EGR
the cooler starts to fail, it transfers coolant from the EGR cooler
into your exhaust system. When this happens, the exhaust interacts with
this refrigerant and turns it into vapour. This "white smoke" comes out through
your exhaust system of your heavy duty engine and is a sure sign of EGR
refusal.
- Missing
coolant from your D gas/overflow tank. When your gas is D/overflow
no coolant, but you don't see any signs
external leakage (i.e. dripping under the vehicle) is a severe
indicates that your EGR cooler has an internal leak. As a result, this
drains coolant from the exhaust system, which
creates the possibility of engine overheating or in this case "white
smoke".
- Dirty EGR valve, Majority
An effective way to determine if your EGR is failing is to physically look at
This. If you remove the valve, which is located at the top of the engine
next to the oil filter, it should be filled with dry black carbon deposits (soot)
that of the exhaust system. If you have a faulty EGR cooler,
the dry carbon will be replaced by a black slime like substance. This
caused by hot coolant reacting with hot exhaust and steam fouling
your EGR valve.
If you have ANY of these three symptoms, it is severe
an indicator that your EGR cooler is out of order.
