I found diesel in my coolant while getting ready to change my stuck thermostat. The degas bottle smelled like turpentine, and there was a type of sludge in there. I had a reputable diesel shop flush a couple times with detergent and refill as a hail Mary (truck has a history of a cracked head that was supposedly replaced) . They also put a UV dye in my fuel and he said it should make the coolant glow under black light if there is a leak. I drove the truck about 100 miles since this was done. Checked the coolant again, and it looks clear but smells like turpentine. I put some in a cup and looked under black Light. It glowed a little, but I don't have a reference sample for comparison.
I'm going to have themy check it again and tell me what they think, but I need some forum 2nd opinions before I decide what to do.
Will diesel in coolant always be visible as a film or sludge?
I have read it's nearly impossible to flush it all from the rubber hoses.
Should I try more flushes?
The shop guy said he can try to find the leak by pressurizing the coolant system with air, but the head would have to be pulled anyway to remove and repair, which will require him to pull the cab.
What options do I have, and what would you do if it was your truck?
I guess worst case scenario is pulling both heads, having them both pressure checked and fluxed, repaired/replaced and re-install?
I'm going to have themy check it again and tell me what they think, but I need some forum 2nd opinions before I decide what to do.
Will diesel in coolant always be visible as a film or sludge?
I have read it's nearly impossible to flush it all from the rubber hoses.
Should I try more flushes?
The shop guy said he can try to find the leak by pressurizing the coolant system with air, but the head would have to be pulled anyway to remove and repair, which will require him to pull the cab.
What options do I have, and what would you do if it was your truck?
I guess worst case scenario is pulling both heads, having them both pressure checked and fluxed, repaired/replaced and re-install?