Your 6.7 Cummins' EGR cooler has failed internally and is feeding coolant into the intake. We replace the cooler and valve and flush the system, one visit, at your home.
The EGR cooler on the 6.7 Cummins is a heat exchanger with an impossible job description: take exhaust gas at several hundred degrees and cool it with 90-degree engine coolant, thousands of times per drive, for hundreds of thousands of kilometres. The internal core, thin passages separating exhaust from coolant, eventually fatigues and cracks from the relentless thermal cycling.
Once the core breaches, coolant migrates into the intake stream. You see it as white or grey smoke under load, a coolant bottle that needs topping up with no puddle ever appearing, and EGR temperature codes as the compromised cooler stops doing its job. Run long enough, combustion gases can also push the other way into the cooling system, that's when you find the oil-in-coolant style contamination in the overflow bottle.
The coolant doesn't pass through cleanly, either. Mixed with soot, it forms a paste that cakes the EGR valve until it sticks, which is why a cooler replacement that leaves the original fouled valve in place is half a repair. The proper job is cooler and valve together with a cooling system flush, so the new parts start life in a clean system instead of inheriting the old one's sludge.
If your Ram is doing any of these, this is the likely cause:
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EGR Cooler & Valve Replacement with System Flush is a big job and shops quote $2,800–$4,000 for it. The single most valuable thing you can do before committing that is have the diagnosis confirmed independently, $100–$250 flat, at your location, no hoist needed, because a diagnosis isn't the repair. Plenty of cars arrive at that quote and turn out to need the smaller version of the problem.
And the honest scoping condition, up front: once I've seen it, I tell you straight whether it's something I can do at your place. If it needs a hoist, a press or a machine shop, I say so and point you to someone who has one. I don't take a job and figure it out in your driveway. That's the whole deal, and it's why the diagnosis comes first.
What the car is doing plus what you've been quoted. Fares reads his texts between jobs.
The jobs I turn down are published, so you can check this one against the list · holding a quote already? Free quote check.
An EGR cooler leak runs a quiet tab: every drive burns off coolant you'll pay to replace, soot-paste creeps deeper into the valve and intake, and the cooling system runs closer to the edge, on a truck that tows, that edge is a head gasket. If combustion gas starts pushing into the coolant side, you've graduated to a much bigger conversation. Fixed at the white-smoke stage, this is a one-day, one-bill repair.
Yes. EGR cooler and valve on the 6.7 Cummins are engine-in-truck repairs, done in a day at your home. We bring everything, including the coolant for the flush and fill, and take the contaminated fluid away for proper disposal.
Book hours at dealer rates, the cooler and valve at list price, plus the flush billed as its own line. The parts are what they are; the labour structure is where quotes inflate. We price the complete job, cooler, valve, flush, coolant, as one flat number you approve before we start.
No. Emissions deletes are illegal in Ontario and we don't do them, on any truck, for any money. A quality replacement cooler on a stock 6.7 is a long-lived repair, and it keeps your truck legal to sell, insure, and put through inspection.
The patterns differ and we test rather than assume: a cooler leak shows coolant loss with white smoke under load and contamination arriving through the EGR path; a head gasket typically brings combustion gas into the coolant, overheating, and pressure in the system. We pressure test and inspect before quoting, so you're paying for the actual failure.
Send it over for a free second opinion. I'll tell you straight what the job actually involves, and if their quote is fair, I'll tell you that too.
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