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Car Forum / Chevrolet / Chevrolet Trucks / November 2004Chevy G20 Van - 305 engine - no temp reading
I've replaced the thermostat 3 times, trying to get heat in the beast, and in the process have replaced the temp sender. No reading on the temp gauge...... 2nd temp sensor didn't solve the problem. Does anyone have a schematic? I should be able to read the resistance of the sensor behind the dash, and trace it back to the sender, right? Thanks for your help and pointers..... > I've replaced the thermostat 3 times, trying to get heat in the beast, and > in the process have replaced the temp sender. [quoted text clipped - 7 lines] > > Thanks for your help and pointers..... Have you verified coolant temperature by others means? Just because the gauge isn't registering doesn't mean the engine isn't heating up. Could be a short in the wire, could be the gauge is just dead. What year is this van? Doc Thanks for the reply Doc. Van is a '95. I verified the temp with a thermometer in the radiator - unpressurized 'cause cap was off, but it correlated with the thermostat. I believe it's a wire problem - I'm an electrician and electronic tech - and would love to get my hands on a schematic to trace it. I would also like to get a chart of resistance vs. temperature...... My library has several manuals (Chilton), but no schematics....... > > I've replaced the thermostat 3 times, trying to get heat in the beast, and > > in the process have replaced the temp sender. [quoted text clipped - 15 lines] > > Doc Id just add an aftermarket mechanical gauge, would be an easy fix. Good thought - I'd already thought of it as plan B. Thanks.... > Id just add an aftermarket mechanical gauge, would be an easy fix. > Thanks for the reply Doc. > [quoted text clipped - 6 lines] > > My library has several manuals (Chilton), but no schematics....... I have the scematics out in my garage and can scan them in tomorrow evening sometime. Too cold and too late to go out and grab em' right now. E-mail me gmc(underscore)man(at)adelphia(dot)net and I'll get em' out to you. You didn't use nefarious amounts of teflon tape or pipe dope when you installed the new temp sender did you? You replaced the sender in the driver's side head and NOT the one located next to the t-stat housing right? Doc >> > I've replaced the thermostat 3 times, trying to get heat in the beast, > and [quoted text clipped - 18 lines] >> >> Doc Thanks Doc - sent mail..... > > Thanks for the reply Doc. > > [quoted text clipped - 41 lines] > >> > >> Doc |
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