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Discussion Starter #1
just got my truck back from getting a new water pump on the drive home it has no heat in the cab low coolant light is on and temp is 3/4 of the way to red line is it just not primed or what? calling the mechanic in the morning and seeing what is up might try putting coolant in it first. sucked driving half an hour in -5 C with no heat! i popped the cap off and coolant shot out witch i thought weird cause theres not coolant that i can see in it! just rather annoying after spending $450 to get a water pump and install :help
 

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Discussion Starter #2
oh also forgot to state. its an 02 lb7
 

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Sounds like it has air in the system. It takes some work to get it out. Check the bleeder screw on top of the thermostat housing and see if you get some air out. Fill the coolant bottle to the line and warm the engine up enough to open the thermostat, about 190 on my truck. I had to do this a few times after changing my head gaskets before the all the air was out.
 

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Move to LB7- truck runs
 
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