PCM trouble?
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Senior User
Joined: Jan 2003
Posts: 156
Likes: 0
From: East Texas
PCM trouble?
Had trans rebuilt 3wks ago, been good now my RPM's are too high in 4th. Went to trans shop he used Snap-on scanner and found code PO605. Trans shop says the PCM is bad and not letting torque converter to lock. Any ideas or good place to buy PCM, dealer want $700.00.
Fleet Mechanic
Joined: Mar 2007
Posts: 1,313
Likes: 6
From: Rio Rancho NM
If the problem started as soon as you got it back from the tranny shop they may have done something wrong. I'd swap the PCM with a known good one first before you buy one. Junkyards might be a source.
Postmaster
Joined: Sep 2007
Posts: 4,195
Likes: 6
From: Medford Oregon
From this site ... Oregon Fuel Injection, diesel fuel injection pump, turbo, injector and diesel performance product specialist.
DTC P0605
1. If there is a chip plugged into the PCM that will cause this code.
2. Excessive cranking can cause this code.
DTC P0605
1. If there is a chip plugged into the PCM that will cause this code.
2. Excessive cranking can cause this code.
