Forum Discussion
hershey
Jul 10, 2013Explorer
hooligan wrote:Thanks holligan, that note will go into my Cummins file. I knew there was a bleeder valve at the top of the engine somewhere but I didn't know exactly where it was located and I didn't know there was two of them. Good stuff, thanks.
If you didn't bleed air as you refilled the coolant, you may have an airlock. On my ISB there are two small lines (hoses) coming from the block near the thermostat housing, they go above and behind the radiator, with a petcock on each. These vent the air as coolant is added. Open those until a small amount of coolant comes out...
Air trapped in the system can cause overheating.
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