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Where is My TCU

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#1

Old

02-19-2007, 04:37 PM

WvoBoy

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Join Date: Feb 2007

Location: Oklahoma

Posts: 2

Where is My TCU

I have been looking for my tcu in my 1990 350 SDL for Two weeks. I have looked under Passenger dash, Driver Dash and around the Mono valve. All information

has it under the passenger side but no luck:fork_off: Can anyone help

Thanks Troy-WvoBoy

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#2

Old

02-19-2007, 05:03 PM

sham

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shammy

Join Date: Jan 2007

Location: Rincon, Georgia

Posts: 7

What Is The Tcu?

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#3

Old

02-19-2007, 05:13 PM

WvoBoy

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Temperature Control Unit it is what send the messages to monovalve and compressor.

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#4

Old

02-19-2007, 07:05 PM

sixto

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smoke gets in your eyes

Join Date: Jun 2000

Location: Eastern TN

Posts: 20,851

1985 is the last year for a separate temp control unit in the 126s. From 1986 it's part of the push-button unit. Compressor control is managed by the Klima relay in the engine bay beside the overvoltage protection relay.

Sixto
93 300SD 3.0

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