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 PCM or TCM?

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R1V 1T UP
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Name : Timothy
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PostSubject: PCM or TCM?   Sat Jan 27, 2018 3:41 pm

Hello all. The internet says part #16218974 is the temperature control module in my '97, but then the internet says it's the performance control module in a '95. Can anyone help? My quest is to find the pcm.
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albertj
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PostSubject: Re: PCM or TCM?   Sat Jan 27, 2018 4:05 pm

R1V 1T UP wrote:
Hello all. The internet says part #16218974 is the temperature control module in my '97, but then the internet says it's the performance control module in a '95. Can anyone help? My quest is to find the pcm.  

You might want to ignore the internet and just look the part up on a GM parts site like gmpartsdirect.com or a catalog like rockauto.com, see what number they give you. Also if you pull the part from your car a parts counter person at pretty much any GM dealer will be able to give you a workable cross reference number.

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PostSubject: Re: PCM or TCM?   Sat Jan 27, 2018 4:15 pm

Good call. I should've checked wholesalegmpartsonline.com before asking. Turns out I pulled out the temperature control module instead of the pcm. I should've known it was the cool looking hefty metal case thing.
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PostSubject: Re: PCM or TCM?   Sun Jan 28, 2018 5:42 pm

R1V 1T UP wrote:
Good call. I should've checked wholesalegmpartsonline.com before asking. Turns out I pulled out the temperature control module instead of the pcm. I should've known it was the cool looking hefty metal case thing.

No prob.

BTW there are good sellers of used PCMs on eBay (just look at their ratings) if you just need one. I don't remember which I used, but I think for something like this you can pretty much go by buyer feedback. IMHO the seller you want is the one who'll send you a ready-to-install PCM flashed to your VIN -- that's what I did.

Albertj
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PostSubject: Re: PCM or TCM?   Sun Jan 28, 2018 5:48 pm

Thanks for the input. My post was based on me pulling parts from a rust bucket I bought a couple years back. I did find a Riv with a lot less rust for a low price since then and have kept the first to get parts. Yesterday I was under the dash and wasn't sure which was which so I pulled the temp module. I'll be going back for the PCM very soon so there's no need to buy anything here.
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PostSubject: Re: PCM or TCM?   Sat Feb 03, 2018 1:39 pm

R1V 1T UP wrote:
Thanks for the input. My post was based on me pulling parts from a rust bucket I bought a couple years back. I did find a Riv with a lot less rust for a low price since then and have kept the first to get parts.  Yesterday I was under the dash and wasn't sure which was which so I pulled the temp module. I'll be going back for the PCM very soon so there's no need to buy anything here.

You're welcome, and yes being upside down under the dash isn't conducive to thinking straight...
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