Starting without a key

Reply Subscribe

Thread Tools

Search this Thread

Jun 27, 2021 | 10:58 PM

brian.b

Thread Starter

Cross-Country

Joined: Jun 2012

Posts: 85

Likes: 0

Starting without a key

Hey guys I bought a 2005 f150 that was headed for the junk yard for parts the transmission is took apart but I’m not sure about the engine and there’s no key with it …id like to try and start this truck just to see if the engine is any good is there any way to start this without having a key made ……thanks guys …

Jun 28, 2021 | 06:08 AM

projectSHO89

Hotshot

Joined: Jan 2004

Posts: 19,768

Likes: 1,082

From: St Louis

Quote:

is there any way to start this without having a key made

No, there isn't.

Jun 28, 2021 | 08:48 AM

redfishtd

Fleet Mechanic

Joined: Apr 2016

Posts: 1,653

Likes: 193

The pats system has to enable pcm to allow crank and run . You can jumper crank but getting pcm to send signals to cops and injectors is a whole other story .

Jun 28, 2021 | 04:26 PM

brian.b

Thread Starter

Cross-Country

Joined: Jun 2012

Posts: 85

Likes: 0

What if I took my ignition and computer from another truck or would I have to just put in a new ignition and have a garage reset the computer to match it ???

Jun 28, 2021 | 04:43 PM

redfishtd

Fleet Mechanic

Joined: Apr 2016

Posts: 1,653

Likes: 193

The pats module has to have a match between the key head electronics and the one stored in the pcm . I hear you can get a pcm company to delete the pats function in the pcm . The mechanical key cut is not the problem . The transciever around the head slot sends what it reads to the pats then it checks for a match with the pcm .
Talk to one of these companys about sending your unit in to get it set up .

Jun 28, 2021 | 09:20 PM

steve(ill)

Hotshot

Joined: Jul 2005

Posts: 11,932

Likes: 181

you could go with the PATS delete ............. or go to FORD and ask them to make a key, given the serial number - VIN.

Jun 29, 2021 | 05:42 AM

projectSHO89

Hotshot

Joined: Jan 2004

Posts: 19,768

Likes: 1,082

From: St Louis

Quote:

or go to FORD and ask them to make a key, given the serial number - VIN.

1. They'd need TWO keys to be made/available in order to re-program PATS from scratch. FWIW, any DIYer can do this with Forscan, the proper OBDII interface, and a Windows device.
2. Nope. Too old. ..

Quote:

What if I took my ignition and computer from another truck or

Yes. You would need the PCM from like truck with the same engine along with its pre-coded key and the ignition cylinder (or work out an arrangement so that the "loaner" key is read instead of the one that fits the original cylinder.

Quote:

The pats module has to have a match between the key head electronics and the one stored in the pcm .

There is no "PATS-module" in this generation of truck. The PATS function is located solely within the PCM (plus the transceiver which is not part of the coding, it simply serves as the antenna for the system).