I bought a 03 Gt that was a light roll over. Body a total loss, but has a lot of good bolt on suspension mods and good engine. I have a family member with a 2000 V6 5 spd that has bad engine but body is way nicer than the roll over. I have everything I need to remove and replace so not so concerned about that. Here is my questions: 1. I know I will need to swap my computer and engine harness in, what about the interior harness will I need to mess with that? 2. Will the PATS system give me any issues and seeing as I have both cars to pull from what is the easiest way to make the car crank up with no issues? 3. Any tips on this complete swap to make the process go quicker. I plan on dropping the cross member and rolling it straight under the V6 car. same for the rear axle. 4. The fuel pumps the same? If not I may just drop tanks and swap whole thing. I will get pics of the process as I go. Not sure if any one would want to see this but..
Couple Questions About Swapping Stuff From One Car To Another
- Thread starter Blackbox19
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wmburns
SN Certified Technician
In the 2001+ model years the PCM has way more control of the AC to prevent compressor oil slugging. IF you swap the PCM from a 2001+ into a 1999-2000 model year and don't swap the body harness you will be one of the people that find this out the hard way when the AC doesn't work correctly.
The way the CCRM works between 2000 and 2001+ model years is also different.
The way the IAC works between 2000 and 2001+ model years is also different.
The MAF sensor and IAT sensor are different between 2000 and 2001+ model years.
The fuel tanks are different but the differences likely won't matter. Perhaps the least of your worries.
This is a real mine field with regards to which parts are mixed/matched across this model year boundary.
The advice about PATS isn't completely correct. IF trying to prevent a PATS issue it is necessary to keep the cluster and PCM together as a unit. Just swapping the cylinder ignition lock is good advice but is not enough.
Here's some information on how it may be possible just to re-program PATS yourself and save all of the "tricks" trying to "fool" PATS.
ForScan ODB2 scanner w ELM327 USB
https://www.stangnet.com/mustang-forums/resources/forscan-odb2-scanner-w-elm327-usb.57/
Please don't be one of those people that "assume" an electrical connector is the same just because it plugs in. Over the model years Ford does make changes in which pin are used for which purpose. The changes are also by which motor and transmission is in the car. It seems to me that unless you are prepared to swap virtually the entire car's body wiring harness you should EXPECT to have a number of small to large "issues" with this project. The exact list of "issues" will depend on which parts are swapped and which parts are retained. I can't recommend in strong enough terms just how important a full set of Ford wiring diagrams will be to this project and the trouble shooting that will follow.
If interested in getting a set for yourself I maybe able to help. PM if interested.
Please don't ask me for a run down as I have already given you some of the differences I'm aware of. OBTW, as for HOW I know? Because I have attempted to help other people that have done a similar swap and have encountered problems after the work was done. If you want a complete run down of the differences be prepared to compare the 2000 and 2003 model year wiring diagrams.
The way the CCRM works between 2000 and 2001+ model years is also different.
The way the IAC works between 2000 and 2001+ model years is also different.
The MAF sensor and IAT sensor are different between 2000 and 2001+ model years.
The fuel tanks are different but the differences likely won't matter. Perhaps the least of your worries.
This is a real mine field with regards to which parts are mixed/matched across this model year boundary.
The advice about PATS isn't completely correct. IF trying to prevent a PATS issue it is necessary to keep the cluster and PCM together as a unit. Just swapping the cylinder ignition lock is good advice but is not enough.
Here's some information on how it may be possible just to re-program PATS yourself and save all of the "tricks" trying to "fool" PATS.
ForScan ODB2 scanner w ELM327 USB
https://www.stangnet.com/mustang-forums/resources/forscan-odb2-scanner-w-elm327-usb.57/
Please don't be one of those people that "assume" an electrical connector is the same just because it plugs in. Over the model years Ford does make changes in which pin are used for which purpose. The changes are also by which motor and transmission is in the car. It seems to me that unless you are prepared to swap virtually the entire car's body wiring harness you should EXPECT to have a number of small to large "issues" with this project. The exact list of "issues" will depend on which parts are swapped and which parts are retained. I can't recommend in strong enough terms just how important a full set of Ford wiring diagrams will be to this project and the trouble shooting that will follow.
If interested in getting a set for yourself I maybe able to help. PM if interested.
Please don't ask me for a run down as I have already given you some of the differences I'm aware of. OBTW, as for HOW I know? Because I have attempted to help other people that have done a similar swap and have encountered problems after the work was done. If you want a complete run down of the differences be prepared to compare the 2000 and 2003 model year wiring diagrams.
wmburns
SN Certified Technician
Swapping the entire steering column isn't necessary. As stated previously Ford factory PATS is programmed inside the cluster and PCM. So if trying to avoid a PATS issue it will only be necessary to swap the cluster, PCM, and ignition lock cylinder.
It's important to remember that the devices on the end of the wiring harness such as the cluster work with the wiring harness as a system. The 2003 PCM is going to expect to connect to a 2003 body harness. Same for the cluster. As long as the wring harness matches what the device is expecting, the device won't know the difference.
But here is were the rabbit hole starts to get deeper. What about all of the other modules in the car? For example the GEM, the crash sensor, the ABS, the CCRM? These may need to be swapped as well.
Regarding the AC. You may find that the AC on the GT has high head pressure controls that the V6 does not have. So while most of the AC system is the same, there may be a slight difference in the high head pressure switch used by the GT verses the V6. However that should be easily swapped.
Also expect issues if both cars are not the same transmission type (automatic to manual or Manual to automatic).
Digging up an old post I know, but did you ever make progress on this build Blackbox19? I just bought a wrecked 2003 gt and currently am swapping everything into my 2000 v6 convertible. I'm trying to get an idea of all the electrical items that need to swapped. Did the GEM become an issue? Did you swap the ABS?
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