Hi all!
I finally found the correct card under the dash. Thanx to Front Line I
realized that the card attached to the computer hook-up was too small. The
correct one is way up high on the steering bracket and you have to pop it's
box out of its mounting hole to get at the card inside. Made the swap, both
cards had the same GM number and replaced it. I will let the truck sit
overnight and see how it starts in the morning when it's around 25-30
degrees. We had our first snow yesterday. Trying to get it all done before
winter really hits here.
Stuart J. Ellis
East Coast Sales Manager
Intraco USA
Web Site: www.intraco.com.sg
Phone: 603-437-1392 Fax: 603-437-6046
Notice :- This message (including all attachments) contain privileged &
confidential information and is subject to the disclaimer notice as set out
at http://www.intraco.com.sg/disclaim_official.htm
----- Original Message -----
From: "chance wolf" <timberwolf@wheeldog.net>
To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
Sent: Sunday, October 29, 2000 3:43 PM
Subject: Re: [MV] Controller Card For 1009
>
> ----- Original Message -----
> From: "Stuart Ellis" <stuellis@mediaone.net>
> To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
> Sent: Sunday, October 29, 2000 12:03 PM
> Subject: [MV] Controller Card For 1009
>
>
> > Hi all!
> > Can anyone tell me for sure if the civy glow plug card is the same as
the
> > Blazer 1009? One person told me yes, and 1 person said no the military
> one
> > is 24 volts.
> > Can anyone shed some light? Also, my relay shows 24 volts on the
battery
> > side and 12 volts on the other. One person said there should be 12
volts
> on
> > both sides, and another that 24 volts on the battery side is right.
Help!
>
> On the controller card you removed, there should be a standard GM part
> no. incorporated as part of the solder-mask on one of the card-edges.
> That's a
> valid GM part number, and I've ordered them through my local dealership
> using
> nothing but that.
>
> The card is 12V. Two wires leave the card and go to the relay trigger
> terminals
> on the relay, as neither terminal is grounded to the vehicle, but is
instead
> fed trigger
> + and - through the card. The relay's other terminals are the feed and
the
> output.
> The feed-side comes directly from the large resistor mounted on the
> firewall, and,
> if measured at the relay contact with no load, will read ~24V. When the
> relay
> triggers courtesy of the card (after polling the coolant temp sensor at
the
> rear
> of the block), the relay feeds the 24V to the glow plugs through the
> resistor and the
> relay.
>
> The glow plugs become an instant circuit load, and cause a current draw
> across
> the resistor. The resistor then drops the voltage as a result, and if you
> were to
> measure the voltage at the glow plugs during glow plug cycle, you should
get
> somewhere between 12 and 18V..
>
> As mentioned here before, GM used packs of different glow plug systems on
> the various models, and their controller cards won't work. I believe GM
> refers to them as "Diesel Electronics Modules" or similar for the other
> applications
> (mainly early Olds 5.7 engines), and though they may fit the card socket,
I
> highly doubt they're interchangeable.
>
> Anyway, that's pretty much how it was explained to me after going several
> rounds
> with people who only spoke manualese. If you fit 12V GM glow plugs to the
> system (like the Autolite 1110's), they don't seem to appreciate the
CUCV's
> cold-start timer duration, and bake after a few months.
>
> The manual issued to Canada's Army went into excruciating detail to ensure
> soldiers charged
> with maintenance didn't simply swap out the card to cure system ills, as
the
> card failure
> seems to fail as a *result* of something else going first - not of its own
> accord. There's
> a test procedure involving checking the voltage and resistance on each
wire
> leading
> to the controller card socket, but I've not found it especially useful.
>
> Andy Hill
> MVPA 9211
> Vancouver, B.C.
> (and additions, corrections, etc. always welcome....)
>
>
>
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This archive was generated by hypermail 2b29 : Wed Nov 01 2000 - 21:37:51 PST