1992 GMC TopKick 466 V8 Engine Questions - Great Lakes 4x4. The largest offroad forum in the Midwest

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Old December 15th, 2006, 07:04 PM   #1
Saurian
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Default 1992 GMC TopKick 466 V8 Engine Questions

Whoops, it's a 366... Anyway, this is our chipper truck at work. Running great, but eating fuel like a fiend... Have a question for those more versed in GMs...

The temperature gauge does not move. The air coming out of the heater is lukewarm. The air being blown off the radiator is the same temperature. I am guessing the thermostat needs to be replaced. As it is, the gas mileage on this thing is terrible. Pulling a full load of chips with a chipper on the back, yeah, it's not gonna be like a Honda Civic, but we're talking about 30 gallons in 3 days. On my Jeep, when the temprature sensor went out, due to sand in the connection, not only did the dash gauge flatline, but the computer flooded the engine because it thought it was cold. Is there a similar computer input on this engine that would be causing the same problem? I know that running cold will make it a lot less fuel efficient too, but if the computer thinks the engine is less than 100 degrees, that can't be helping...

Oh yeah... How the hell do you set the clock in this thing? The manual is probably somewhere with Nelson tree service in Houston. It's a GM stock radio, the big square kind, what with the buttons for preset, a big orange SET button for said buttons... I'm sure it's just holding 1 or 2 buttons, but I don't know what. No dials, just buttons.

Thanks.

Last edited by Saurian; December 21st, 2006 at 05:34 AM.
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Old December 20th, 2006, 08:01 PM   #2
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Repaired.
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Old December 20th, 2006, 08:06 PM   #3
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The time set is Hold SET and use the tune + - buttons.. If its the Radio im thinkin of
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Old December 21st, 2006, 05:33 AM   #4
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It ended up being the Scan/Seek buttons, but yes... I was expecting for the clock to start flashing, like all other clocks in the world do when they are being set.
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