Question about 1999 Chevrolet Silverado 1500

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Where is the transmission modulator located on a 1989 chevy k1500

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  • Anonymous Feb 16, 2009

    where is modulator on 1996 blazer

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If it has TH400 Transmission, its mounted L/H rear just above pan.
Looks about 2" Dia with hose in centre.

Posted on Aug 02, 2008

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If this a 350 turbo it is on the L.H. side of the trans a 400 turbo dose not have one it uses a TV cable

Posted on Feb 20, 2009

  • Larry Muhlenberg IV
    Larry Muhlenberg IV Jul 20, 2012

    on the th400 there is a transmission modulator its mounted on the passenger side right above the front of the pan very small with one bolt securing a clamp that holds the modulator

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SOURCE: will a 1989 kblazer transmission fit a 1993 k1500

If you are asking will the transmission will bolt up to your engine the short answer is yes however you may have to modifly the transmission depending on a number of factors the transmission in your 93 could be the electronic shift the one in the 89 might be manuel **** but you can check that out before you put it in.

Posted on Mar 19, 2009

skychief2001
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SOURCE: 1989 chevy blazer 1500 transmission modulator vale location

If its a THM400 the valve should be in the side just above the pan. It would have a vac hose going to it.
If its not a 400 it probably does not use a modulator valve but rather a solenoid inside the transmission.

Posted on Sep 21, 2012

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If its a THM400 the valve should be in the side just above the pan. It would have a vac hose going to it.
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