At work today

[skyactiv]

Was told to check on a shifter driver that said his truck overheated. The driver said he happened to look at the temp gauge being pegged and shut the truck off immediately.
The bottom radiator hose blew out, a whole lot of coolant escaped and the poor 6.7 Cummins over heated to oblivion. The stop engine light and the warning buzzer didn't come on plus this truck is supposed to derate the power by means of it's electronic throttle control in this scenario which it didn't.
There is a low coolant sensor in the radiator which failed and the heavy rain hid the leak from showing on the yard.
I ordered a low coolant sensor, put a new hose on it, filled it back up with coolant and no problems, so far anyhow.

 

[Vern_in_IL]

Quote:
shop in mass can do it for 5500.00 installed, ready to drive.

this is a re-build, not an overhaul.
re-man injectors
new or recon head
new head bolts
complete engine gasket set
new piston and rings
new oil pump
new water pump
oil fiilter and oil
and test run.
if you want it dyno, it will be 6,000.00 with dyno


The rebuild is not that bad, keep driving it I say.

 

[clinebarger]

Electric "Resistive" type Temp Sensors require Coolant to read correctly, The actual gauge is probably Mechanical with a Mercury filled capillary & tend to read the "Steam" and surrounding metal. The ECM reads coolant temp via a resistive sender, It never knew the engine was overheating to cut back fueling.

 

[dlundblad]

OP, arent you the UPS mechanic we have here on BITOG?