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Old 02-12-2007, 03:02 PM
Join Date: Jun 2006
Posts: 58
01extreme is an unknown quantity at this point
Default No start, manual security reset?

I have a 2001 Blazer xtreme p.o.s. 4.3L v6 2door. December, changed the key cylinder, then the truck wouldn´t start. Found out, there is a manual reset u have to do with shutting and opening the doors several times for the computer to establish communication with the new hardware. Well, everything was running well then. Now this morning, I get to turn the truck on, and it just turns and turns, a couple sputters but no start. Now I am thinking ignition module, switch, what else? When I turn the truck on I hear the pump hummm, then it just turns. No firing, what can cause this!!!
Old 02-12-2007, 07:54 PM
Join Date: Feb 2007
Posts: 6
clays99blazer is an unknown quantity at this point
Default RE: No start, manual security reset?

Is ur security light on? If so try starting ur truck and if it doesn't start leave the key turned to the run position till the light turns off [10 mins or so] good luck mine does the same thing and I have to do it every other day
99 chevy blazer 4wd
Old 04-13-2008, 03:50 PM
Join Date: Apr 2008
Posts: 15
f1yrod is an unknown quantity at this point
Default RE: No start, manual security reset?

can you remember the exact door process for the manual reset ??
1998 Blazer LT, 4DR, 4WD, 4.3 L Vortec, Auto
RHD (ex Japan)
Old 04-13-2008, 03:50 PM
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02, 04, 1998, 2000, 2001, 99, blazer, chevy, code, light, reset, resetting, security, start, xtreme

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