beech2000
Member
Rather than thread hack I decided to create a new one for my problem.
My problem has been in inoperative engine temperature gauge for about a year.
The cab has some heat but not great. I replaced the temp sender and operationally checked it with a hair drier before mounting. gauge responded quickly. When mounted the gauge moves only a needle width from buried.
I also replaced the water pump and thermostat with a 192F from AZ. Coolant was nice and green before and and now. I flushed the heater anyway and all is clear. Heater core replaced by me several years ago. Purged air out from heater hose as best as know how.
My problem is strange.
The heater diverter valve has a vacuum hose to it. When I draw vacuum from my mouth the gauge quickly goes to normal. I've been all over the Internet trying to find vacuum schematic as my sticker is long gone but no luck.
Question: should there be a constant vacuum to the diverter valve?
Question two: what's the smaller quarter inch hose that tees off the diverter valve for?
I will try to attach a picture of the current plumbing at first chance.
Engine is 4 banger 2.5 L Manual trans. 250K miles
My problem has been in inoperative engine temperature gauge for about a year.
The cab has some heat but not great. I replaced the temp sender and operationally checked it with a hair drier before mounting. gauge responded quickly. When mounted the gauge moves only a needle width from buried.
I also replaced the water pump and thermostat with a 192F from AZ. Coolant was nice and green before and and now. I flushed the heater anyway and all is clear. Heater core replaced by me several years ago. Purged air out from heater hose as best as know how.
My problem is strange.
The heater diverter valve has a vacuum hose to it. When I draw vacuum from my mouth the gauge quickly goes to normal. I've been all over the Internet trying to find vacuum schematic as my sticker is long gone but no luck.
Question: should there be a constant vacuum to the diverter valve?
Question two: what's the smaller quarter inch hose that tees off the diverter valve for?
I will try to attach a picture of the current plumbing at first chance.
Engine is 4 banger 2.5 L Manual trans. 250K miles
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