Bleeding Air Out Of Duramax Coolant System Youtube Jc1843. the lb engine is the only duramax that has injector cups the 05 lly does not use the injector cups. if it pukes coolant and the heater is erratic, possible head gaskets is the problem. take it for a drive and check the top radiator hose after it has sat overnight, and before you start it. Side (fender side) of the coolant surge tank until it reaches one third of the capacity. fill the coolant surge tank to the following levels: at or above the min mark on the pickup. to the cold fill mark on the van. 5. replace the pressure cap. be sure the pressure cap is hand tight and fully seated. 6.
How To Bleed Air From Duramax Fuel System An Easy Guide I filled mine until coolant came out of the bleed port on top of the front thermostat housing. after i replaced the plug, i added fluid until the tank was about 3 4's full. i started the engine and the book says to cycle the rpm's up and down several times to purge the air out and draw fluid in. the cap should be loose during cycling. Air in cooling system. i just purchased an 02 duramax (190,000) miles and had the engine checked because i noticed low coolant and lack of heat when idling. the chevy dealer ran all of the usual tests (compression, die, exhaust, oil consistency, etc. ) and nothing indicated head gasket leak. however, i do seem to be getting air into the. So, i have a 2007 classic duramax. i changed the thermostats and drained the coolant system. started putting fluid back in with the bleed screw off. the overflow tank is almost full but nothing has came out of the bleed screw yet . how do i force the air out of the system so it will bleed properly?. I did a coolant drain and fill in my duramax. the instructions say to pour dex till coolant starts to come out of the bleeder hole. well, i could not get any thing to come out of the bleeder hole even with the overflow tank all the full to the top. 1. i went ahead and burped the system but idling to temp with overflow tank cap open.
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