Your tech will use a scan tool to check the function of the EGR system or otherwise track down the cause. When that light turns on, it’s always a good idea to get your truck into the shop for diagnostic services. To spot this issue before going down for your test, always let your diesel mechanic know if you notice any increase in exhaust smells.īeyond all these signs, you can trust your onboard computer to let you know the EGR cooler needs service by watching for a check engine light. When that happens, you just need to get into the auto repair shop to determine the cause and get EGR cooler replacement services. Excessive EmissionsĪs a vital part of the emissions system, the EGR cooler must work properly, or your diesel truck will fail its emission test.
Although it could just point to the need for a new EGR cooler gasket, it could also signify that the whole part needs replacement. Exhaust leaks near the cooler will often sound like a tapping or hissing noise that gets steadily louder as the damage worsens. Since the EGR cooler is technically part of the exhaust system, it’s wise to listen for leaks as you start your Cummins ISB and drive around town. Red coolant temp light on? Park your truck to keep the engine from overheating and get a tow into the shop. If the gauge starts to move further than expected, let your diesel tech know right away. Before your travels, take a moment to glance at the coolant temperature gauge to see where it sits. Since the EGR cooler keeps engine temps down, the first sign that it’s on its way out is climbing coolant temperatures. To spot the issue as it develops, watch for these signs as you drive your truck. Since you spend the most time with your Cummins diesel, you’re the first line of defense against damage caused by a faulty EGR cooler. Fortunately, with help from your Brooksville, FL diesel mechanic, you can keep a close eye on this vital part and get it replaced at the first sign of a problem. So, if it fails, the internal temps could land in the danger zone, putting your diesel engine at serious risk of catastrophic damage. The EGR cooler on your Cummins ISB powerplant works hard to keep exhaust gas temps in the ideal range.
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