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Old Feb 15, 2006 | 12:07 PM
  #1  
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Burning Brakes
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From: MARRIOTTSVILLE MD
Default Pcm Reset

Sometimes when I start my car my PCM gets reset and yes I do have
a new battery that measures 12 volts with the key on and 14 volts with
the car running. Has anyone seen this problem ?

Thanks >>>>> INTHERED
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Old Feb 15, 2006 | 03:27 PM
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Bill Curlee
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From: Anthony TX
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St. Jude Donor '08
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You have a bad connection some where that is allowing the PCM voltage to drop below the PCM's minimum voltage requirement. I would start with battery cables (clean and torque the cables on the battery to 12 ft/lbs) and then clean the grounds. Especially the PCM related grounds.

Bill C
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Old Feb 16, 2006 | 11:06 AM
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From: MARRIOTTSVILLE MD
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Originally Posted by Bill Curlee
You have a bad connection some where that is allowing the PCM voltage to drop below the PCM's minimum voltage requirement. I would start with battery cables (clean and torque the cables on the battery to 12 ft/lbs) and then clean the grounds. Especially the PCM related grounds.Bill C
Well I checked the cables and connections and they are all good.
I looked in the shop manual and the PCM uses ground G106. Does
anyone know where this is located ?
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Old Feb 16, 2006 | 01:27 PM
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G106

Engine harness, RH side of the engine, above the starter (CKT 451)
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Old Feb 16, 2006 | 09:47 PM
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From: Anthony TX
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Yep,,, I think it's a 15mm bolt and there will be TWO ground wires connected to it.
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Old Feb 20, 2006 | 12:14 PM
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From: MARRIOTTSVILLE MD
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Originally Posted by Bill Curlee
Yep,,, I think it's a 15mm bolt and there will be TWO ground wires connected to it.
This 15mm bolt is it bolted to the block or the frame ?

Can I get to it from the top or do I need a lift ?
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Old Feb 20, 2006 | 10:24 PM
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There are TWO ground bolts on the lower portion of the block. They are located just below (approx) # 3 and #4 cylinders sparkplugs. I have a picture of the bolt. Send me your e-mail address and I will send them to you.

BC
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Old Feb 21, 2006 | 05:35 PM
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From: MARRIOTTSVILLE MD
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Originally Posted by Bill Curlee
There are TWO ground bolts on the lower portion of the block. They are located just below (approx) # 3 and #4 cylinders sparkplugs. I have a picture of the bolt. Send me your e-mail address and I will send them to you. BC
Bill

Thanks for the information after spending several hours searching
thru my shop manuals last nite I finally found a drawing of the bolt
location in the starter removal section of the manual.

Mike
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