Loading…
29
Cleaned the EGR cooler on a 6.7 instead of swapping it, and the truck came back running smooth
Customer brought in his 2012 F-350 with 187k miles last Tuesday, said it was blowing white smoke and losing coolant, and I quoted him $1,400 for a new EGR cooler. He asked if I could try a soak and flush first since money was tight, so I ran a citric acid mix through it for about an hour, and the coolant temps dropped 15 degrees on the test drive with no more smoke. Felt good to save him the cash, but now I'm wondering how long that fix really holds on a truck with that many miles.
1 comments
Log in to join the discussion
Log In1 Comment
angela_ross7d ago
You really think a citric acid soak is gonna fix 187k miles of baked on soot and scale? That cooler is probably half plugged with hardened junk that acid barely touches, and the 15 degree drop you saw is just the thin layer that did come off. Give it 5 or 10 thousand miles and that white smoke will be back, except now the customer is out the money for your flush AND the $1,400 cooler he still needs. The reason shops just swap these is because the failure is usually inside the core where you can't see it, cracked or eroded, and no amount of soaking fixes cracked metal. When it comes back and he's stranded on the side of the road, guess who he's gonna blame.
3