Northstar Swap into an '02 SLE - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Bonneville GXP/ Northstar Powered Cars Discuss your Bonneville GXP and/or any other Northstar powered Olds or Cadillac... Including the 3.5L Twin Cam V6 (Short Star ) 4.0L and 4.6L Northstar V8's. Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 03-25-2010, 02:51 AM   #11
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Very cool project.

Once you go N*, there is no going back!
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Old 03-26-2010, 10:43 PM   #12
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I have a question for anyone that has a GXP. So through out the process of swapping motors of course there are items that I had adapt. One thing I have no idea abut is the secondary air pump that comes off the back manifold and goes to a pump that is then pumped back into the air box. first off I am not going to use an air box because first off they are $680.00 and a cold air intake is way cheaper. so If I don't use this air pump what will be effected? Hypothetically it shouldn't be an issue because there will be more air supplied to the motor with the cold air intake and how I am going to do it.

As an update the N* IS NOW IN MY CAR! it was a very tight fit but she is in. I will provide more pictures coming in the future days to show some of the things I had to over come.

Now that I have the 3800 out of my car I realized through out the years of fixing the engine and parts I also have warranties on those parts. I would be willing to swap out the old parts for new ones next time I go to the store and sell them and so they don't go to waste. also who ever buys them I will give my info so they can have the warranty in the future also.
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Old 03-26-2010, 11:28 PM   #13
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Quote:
Originally Posted by hemhog7 View Post

As an update the N* IS NOW IN MY CAR! it was a very tight fit but she is in. I will provide more pictures coming in the future days to show some of the things I had to over come.
Very tight fit in my car too.....

Good work. Can't wait to hear the video of it running.
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Old 03-26-2010, 11:39 PM   #14
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Back when these were new, a very few noticed they were missing the rubber tube that feeds the airbox. (why... ?) I think it is just for smog control and not going to be a problem. Northstar'* use a little oil normally. And a little of that seems to make it back to my air filter. I have thought about just leaving the hose hang.
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Old 03-27-2010, 12:44 AM   #15
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Thank you for your help! I hope to have it running by sunday or even tomorrow night I just have to read on how to reprogram the key for the security system due to new PCM.
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Old 03-27-2010, 02:32 AM   #16
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Good job on the swap. Post some pics up when you get a chance.
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Old 03-27-2010, 02:05 PM   #17
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wow
that was quick

cant wait to see pics
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Old 04-07-2010, 11:02 PM   #18
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does anyone know how to program keys into the new pcm? I heard it was easy but I cant find how to do this...
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Old 04-08-2010, 09:30 AM   #19
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There'* a security learn procedure, but I'm not sure if that'* what you need. New keys usually require a Tech 2 (dealer programmer) to be coded to the car.

Did the keys come with the pcm originally or is this totally new?
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Old 04-08-2010, 11:49 AM   #20
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yeah I Believe the security learn procedure is what I need. They are the same keys to my car, I have a new pcm for the N*. I asked the dealer and they said you just have to relearn the keys to the new pcm but I have no idea and i can only find procedures for the old keys.
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