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Ron
Ron, ASE Certified Technician
Category: Ford
Satisfied Customers: 23001
Experience:  23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
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We put a 2006 motor into a 1999 explorer and the 2006

Customer Question

we put a 2006 motor into a 1999 explorer and the 2006 computer doesn't start the explorer due to the computer doesn't recognize the key.. the 1999 key isn't a smart key My question is can we update the ignition switch to recognize the 2006 computer. Thanks *****
Submitted: 1 year ago.
Category: Ford
Expert:  roy replied 1 year ago.

good afternoon my name is ***** ***** I will assist

did you use the same size motor??

I would have stripped down the donor motor and changed over all the externals from the bad motor to the donor motor. then you could use the harness that was with the truck.

no you cannot upgrade the ignition switch to accept the 2006.

Roy

Customer: replied 1 year ago.
no there wasn't a motor in the 1999 so they just used every off the 2006
Customer: replied 1 year ago.
I was just told they used the wiring of the 99 because they couldn't get the 06 to work.. so they didn't use every off the 06
Expert:  roy replied 1 year ago.

did you use the complete harness from the 2006??

Roy

Customer: replied 1 year ago.
no they used the harness the was on the 99
Expert:  roy replied 1 year ago.

the harness is completely different. does the pcm light up the check engine light with the key on???

Roy

Customer: replied 1 year ago.
My grandson said yes it came on when they turned on the key
Expert:  roy replied 1 year ago.

then the pcm is working. the 2006 had a chipped key. with you using this motor and pcm, you need someone to access the pcm and take off the security for the key.

Roy