Originally Posted by *** ThE FoRk ***
-u mite have a really big air pocket inside the heater core.
-most likely gonna have to bring it to someone that has a flushing system so they can push the coolant in n get the air pocket out.
manual or auto climate control?
Could accomplish this with a garden hose coupler in the return from the heater core. Not that I want another place to leak but you have nothing to loose.
Can you borrow a PC and Software? You can monitor what the ECM sees the temp at. My point; what is the actual ENGINE TEMP? If its below (WAG) 150 the fuel management is going to be whacked. If its at 180 to 195 you should be able to get heat.
Confirm the following:
- engine is at temp > 170F
- water pump is circulating
- heater hoses not plugged
- heater core not plugged
- heater core AIR FLOW not obstructed
- heater core is circulating water
- heater core in/heater core out temp
So the last item you can get with a simple thermometer, some putty, and some tape. Heck buy two thermometers and move them all about to gather info. Although the CORE may be full of water if the water present from the engine is 100F (how, I don't know) than you know its not getting proper supply/circulation. If however the CORE IN is 165 and the CORE OUT is 165 with the FAN on HIGH than air is NOT moving through the core.
Figure out what your actual engine temp is and we have something to work with. I still vote its plugged up by the engine some where in one of the those Y pipes. Just a guess. I mean, if it has circulation through the core (NOT JUST PRESSURE) the hose will be HOT to the touch just like the hoses to the main radiator core.