Installing 06 Chevy E-fans on a 01 Chevy
#161
Here is some additional information that hopefully will clear up some issues in this thread:
1) Radiator size - this is the size of the core. 34" is what you definitely need to use the 05+ fans.
2) A radiator with oil cooler is no problem, just block off those passages in the radiator if you don't have an oil cooler. I have a radiator like this and although I have bought the oil lines/cooler, I have not installed them yet.
3) When using the factory harness, don't cut off the GT150 connector for the PCM leads. All you need is the female GT150 connector and some of your own wire to run to the PCM. Of course, if picking the harness at the junk yard, just make sure to take this complete connector. If you need the GT150 female side connector, I found one here with the terminals seals and lock. Delphi GT150 Series 2 Way Female Wiring Loom Connector
4) You can definitely use the factory harness and control the both fans through the PCM for 1999-2002 models. I believe GMCtrk has a 1999 and did this, nonnieselman did this with his 2000 and I have done this with my 2002
5) A cool little tool when working with connectors and terminals is this removal tool
6) Using the 05 fan settings as previously posted is a good way to go. However, I own an '02 and decided to go with 2002 Camaro fan settings and have had no issues whatsoever
7) Just to clear up any misconceptions about fan speed: the fans do not have separate speeds. A particular fan will at a particular RPM based on the voltage that is receives.
When both fans spin at "low speed", it is because they are in series, thru the use of the relays, and are receiving 6 volts each.
When a fan is at "high speed", it is because the fan is receiving a full 12 volts of power, because now the fans are in parallel mode.
_
1) Radiator size - this is the size of the core. 34" is what you definitely need to use the 05+ fans.
2) A radiator with oil cooler is no problem, just block off those passages in the radiator if you don't have an oil cooler. I have a radiator like this and although I have bought the oil lines/cooler, I have not installed them yet.
3) When using the factory harness, don't cut off the GT150 connector for the PCM leads. All you need is the female GT150 connector and some of your own wire to run to the PCM. Of course, if picking the harness at the junk yard, just make sure to take this complete connector. If you need the GT150 female side connector, I found one here with the terminals seals and lock. Delphi GT150 Series 2 Way Female Wiring Loom Connector
4) You can definitely use the factory harness and control the both fans through the PCM for 1999-2002 models. I believe GMCtrk has a 1999 and did this, nonnieselman did this with his 2000 and I have done this with my 2002
5) A cool little tool when working with connectors and terminals is this removal tool
6) Using the 05 fan settings as previously posted is a good way to go. However, I own an '02 and decided to go with 2002 Camaro fan settings and have had no issues whatsoever
7) Just to clear up any misconceptions about fan speed: the fans do not have separate speeds. A particular fan will at a particular RPM based on the voltage that is receives.
When both fans spin at "low speed", it is because they are in series, thru the use of the relays, and are receiving 6 volts each.
When a fan is at "high speed", it is because the fan is receiving a full 12 volts of power, because now the fans are in parallel mode.
_
#162
Can this be done to 2000 gmc 4.3? My pcm 4 connectors instead of 2. I’m fairly new t
I Don’t know if this has to do with being a V6 but is a bit confusing and I have everything to do the swap just want to do my homework before go in, Thank you any good information would be highly appreciated!
Thread
Thread Starter
Forum
Replies
Last Post
Mrgoodwrench3
GMT 900 Trucks General Discussion
9
03-24-2013 09:41 PM
Paperchaser
GMT 800 & Older GM General Discussion
6
12-07-2008 10:46 AM