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#1
07-09-2011, 04:56 PM
Hummer Novice
Join Date: Jun 2011
Posts: 11
Re: Lost Communication with fuel Pump.
Can anyone tell me where the "Fuel Pump Relay" is located on a 2008-9 H2
I cannot seem to find it.
#4
07-10-2011, 04:06 PM
Hummer Novice
Join Date: Jun 2011
Posts: 11
Re: Lost Communication with fuel Pump.
Quote:
Originally Posted by HUMTECH
No fuel pump relay, controlled by the fuel pump flow control module
Thanks HUMTECH for the electrical diagram, this is a big a help, My H2 is being towed to the workshop tomorrow. If I cannot get this fixed, Im going to have to find a good H2 mechanic in the US or (Canada) & fly him down to Macau all expenses paid...
Last edited by blackdragon1 : 07-10-2011 at 04:10 PM.
#6
07-11-2011, 10:12 AM
Hummer Novice
Join Date: Jun 2011
Posts: 11
HUMTECH I have PM you.Quote:
Originally Posted by HUMTECH
Ive been working on these trucks since day one of production
#7
07-11-2011, 05:34 PM
Hummer Novice
Join Date: Jun 2011
Posts: 11
Update
Today my Mechanic got the engine started by connecting 12 volts directly two the Fuel Pump connector on the tank from another battery.
The engine idles & revs smoothly. So my fuel pump seems ok,
Im guessing I have a broken wire or ground on the fuel harness somewhere or the FPCM is stuffed.
Anyone have some ideas where to look next. 
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