4WD Module at salvage

[Todd I 4]

I'm going to try to use a replacement 4WD module (electronic relay module which controls the 4WD motor) from a salvage yard, for my 2001 Sport Trac.



But, I don't know how precise I need to be in matching a part.



Are these modules the same in all ST's, or do I need to stick to certain years?



Will 4WD modules from Explorers or Rangers work too?

 

[Todd I 4]

I just looked at the module, and the part number on mine is different than I have seen mentioned in another thread here.



My 4x4CM is: 1L54-7H417-AC



On a 2003 Sport Trac part listing, I found what appears to be the same module, but with the part number: 2C54-7H417-AE



Would the '03 part work on my '01 Sport Trac?

 

[Todd I 4]

I checked at fastpartsnetwork.com (site sponsor) and Torrie informed me

that the part number I'm looking for is:



1L5Z 7E453-AC



He had is for $110, so I ordered it there.

 

[Billy Britt]

Hey Todd,

Were you having trouble engaging your FWD? The reason I ask is because mine (2001) will only work after disconnecting the battery and then connecting it back. This is very temporary. Works maybe twice. Did the module fix your problem? I asked one of the experts on this site and they thought this was possibly my ST problem.



Thanks.

 

[2]

Billy - just so you know FWD means Front Wheel Drive, 4WD is 4 wheel drive.

 

[Todd I 4]

Yes, I am having problems switching into 4x4 mode.



I have not received the part yet, so I haven't tested it.



I am not sure that the module is the (only) problem. Last winter, my 4x4 worked, but would sometimes not work right away, it would sometimes take a minute or so before it actually engaged.



I'm hoping that is still a module issue, but it seems like it could also point to a failing 4x4 switch motor.

 

[Hal S]

Usually it's the motor on the transfer case.

 

[Chris Taylor]

If you hear the module click when you turn the switch, look to the motor as the problem. If you don't hear a click, and/or don't have a dash indication, it's more than likely the module/relay.

 

[Todd I 4]

I got the 4x4CM in the mail today, and quickly slapped it in.



I turned the switch to 4WD High, heard a small click, and it's in 4WD.



That's a relief. Those snowy roads are not fun with only the rear wheels working. Well, except for doing donuts.

 

[Kevin Palmer]

Good for you, I am sure you would have been more than a bit frustrated if it did not work...



Have fun,,,,