![]() ![]() Some say that cummins repaired them under warranty anytime before 500,000 miles(mine has 390,000), others say that cummins told em to go fly a kite. ![]() Make sure you clean all connecting faces. The first time in 2018 (about 9 months after initial. Cummins Graphite Turbo Charger to Exhaust Gasket & Bolt Kit Engine Crankshaft Seals Upper End Gasket Kits Engine Maintenance. In reviewing the PO service records it would appear that the Turbo Actuator has failed and been replaced twice (all replaced under warranty). I have spent some time on the internet researching this situation and have seen several cases where the cause of this problem turns out to be dropped cylinder liners caused by to little liner protrusion when the engine was built. Hey all - long time watcher, first time poster I have a 2017 Newmar Mountain Aire with the Cummins ISX15 engine. They have now told me i need a head gasket for the sum of 5900.00, and they warned me that there will probably be other hard parts that need replacing(cyl liners, bearings, etc). It reaching 225 is not something to worry about Like damaging internal parts Technician: Nich1019 No, 230/235 is about the max. That tube feeds coolant to the turbo and heater core back at the firewall. Mopar Part 68049022AA Getting that tube out to replace it can be a bit of a pain. Reply Save Like 1 KhakiCummins 3 It's just an o-ring. They pulled the egr cooler and pressure tested it and it passed, so they reinstalled the cooler. 210-212 But it did reach up to about 220 close to 225. 1 1 - 10 of 10 Posts 5.7 Hemi 2 Should just be an o ring. Gooey EGR Valve coolant leaking into the EGR valve and mixes with the carbon residue creating a sticky and malfunctioning valve. I took the truck to the local cummins dealer and had them check it out, and they came back with a failed "exhaust in coolant" test, and claimed it would either be the egr cooler, or engine internals. They then replaced the turbo, turbo actuator, and coolant overflow tank and both radiator caps, to no avail. My engine brake was sticking and also surging so I replaced the turbo. I go to the coolant tank and all the coolant has shifted to the left side (reservoir). Lately i have been getting a STOP engine light driving down the road for critically low coolant level. I have a 2006 Volvo VNL with a Cummins ISX engine. Peterbilt tested the headgasket(so they say), the egr cooler, and the air compressor, all checked o.k.(according to them). 08 3500 Anarchy tune, deleted, Reply Save Like D droyce Discussion Starter 3 Yes, I took the turbo off and it was the Oring on the actuator that was no good. 1 kabusheke2004 Light Load Member 99 35 Virginia 0 Hello all. The truck runs fine, never overheats, no other issues, except it pushes coolant out of the overflow bottle on hard pulls. So i just bought this 2010KW with an ISX550 engine, and the peterbilt dealer where i bought it has been chasing a coolant loss problem for three weeks. ![]()
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