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Discussion Starter #1
the heater in my 94 sonoma wont get hot is this a common problem? I thought that maybe I had pulled one of the vacuum hoses lose when I pulled my stereo wires through but when I checked they where fine. I've replaced my thermostat and that didnt work. could it be my switch do those go bad????
 

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Mud Dummy
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46 Posts
Don't hold me to this but I'm 99% sure the vacuum controls the heat control valve, you may not have pulled it off inside but outside at the control valve. Good luck
 

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Discussion Starter #3
by outside do you mean the engine compartment? And where is it the control valve
 

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ZQ8 Sonoma Owner
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91 Posts
You low on coolant? Heater core clogged?


Greg G.
 

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1,832 Posts
Yeah... I just had my heat not getting hot, but my prob was low coolant. I added more, and it started getting hot (It was AMAZING :) )

DogP
 
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