Brad Bennett;8607 wrote:
I haven't been back to the site since I posted this. But I think part of the wp suction hose has a spring and part of it doesn't. It also has two hoses on the wp suction. The part that doesn't have the spring is where it is collapsing. There is a T in the line where the block heater is tied into the wp suction. That T is where the two wp suction hoses are. Also what I mean by bypass is where the wp bypasses into the bottom of the thermostat housing. I think like the gm 454 7.4L gas has a bypass, just curious if this unit is supposed to have one. Thank you all for your input and more is appreciated.Thanks,Brad
My guess is who ever cut in the block heater removed the spring section.
I would replace the hose and make sure the new one has the spring. The hose collapse is enough to cause your problem. You could change the tstat to be safe but this will not help with the diagnostics.Doing one thing a time is better.