2004 GMC Sierra Will flashing computer erase an Edge progra

Tiny
MATGDENNIS
  • MEMBER
  • 2004 GMC SIERRA
  • V8
  • 4WD
  • AUTOMATIC
  • 88,000 MILES
I have 2004 GMC 2500hd diesel. I have an edge juice with attitude programmer hooked up to it. After about 2 weeks my motor started rattling nd knocking really bad when motor was under a load. It doesnt do it all the time, just sometimes. When I un hook the programmer, it stops making a noise, but it still doesnt seem to be acting right bc when I am at a stop sign or red light, it seems to try to pull itself forward even when I have the brake pressed. It's kinda like it hops forward. I have been told this could be caused bc my injectors are bad. I have a 100k mile motor warranty that will cover the injectors but I have to get the edge programmer erased completly or it will void my warranty. If I get my computer flashed, will it competely erase the edge with no signs of ever having a programmer or showing that I have had my computer flashed? If you know the answer to this I would greatly apreciate it bc I have asked a ton of people but none of them know. Thanks, Matt
Do you
have the same problem?
Yes
No
Saturday, February 14th, 2009 AT 11:51 PM

4 Replies

Tiny
PEAR69
  • MEMBER
No. Reflashing installs updates and cleans up unnecessary used space in the computers memory so it can work better. Further more, every time a vehicles' computer is reflashed now-a-days, there is a code that sets the time - day - and year that the computer was reflashed. This code is non-eraseable. The settings from any date before the reflashing occured can always be observed, but not reset.
Did you check for vaccume leaks?
Was this
answer
helpful?
Yes
No
Sunday, February 15th, 2009 AT 2:35 AM
Tiny
BRIAN 1
  • EXPERT
To add to pear69's info here is something to read and think about:Caution: Customers should be informed that even after the calibration has been returned to a GM certified configuration, it is likely that engine, transmission, transfer case and/or other driveline components were weakened to the point of premature failure while subjected to the higher stresses from the non-GM calibration (Power-Up Kit). Engine, transmission, transfer case and/or other driveline components where a non-GM engine calibration has been verified are not covered under the terms of the New Vehicle Warranty. An Engine Control Module (ECM) algorithm was implemented that records the engine calibration part number and Calibration Verification Number (CVN) for the last 10 flash programming events. The ECM only records the engine calibration part number because it contains the parameters for increasing torque and fueling rates.

Some customers may have re-programmed the ECM with a non-GM released calibration. The (Power-Up Kit) powertrain calibration changes fueling and timing parameters and likely contributes to the following vehicle conditions:

" Poor Performance

" Black Smoke (This symptom is not valid for the 6.6L (LMM) diesel equipped with the diesel particulate filter (DPF). The DPF will trap black smoke unless the DPF is cracked, melted or has been removed from the exhaust system.)

" Knocking Noise

" Engine Damage
If a vehicle comes in for service for a driveability/powertrain concern as a result of a Power-Up Kit installation, the dealership technician now can read the last 10 engine calibration part numbers and CVN history using a Tech 2 .

The dealership technician would input each ECM calibration part number into the SPS/TIS2WEB CVN database to confirm the CVN history information.
To make a long story short, power programmers do more damage than improve.I've never had to go throught this working at the dealer but I have seen other horror stories from programmers on these diesels. GM started this years ago. Just my 2 cents.
Was this
answer
helpful?
Yes
No
Sunday, February 15th, 2009 AT 11:47 AM
Tiny
MATGDENNIS
  • MEMBER
I havnt checked for vacuum leaks and honestly am not sure how to check that. When I take the programmer out of the truck it makes NO noise at all and runs perfect. Could something still be wrong with my engine if it doesnt rattle without the programmer? Or is it just the programmer that has something wrong with it and if I take it off it will be fine? Someone told me that my injectors could be causing the problem, but why does it not make a noise and runs perfect when I take it off. Im thinking its just the programmer, but what do yall think?
Was this
answer
helpful?
Yes
No
Sunday, February 15th, 2009 AT 8:11 PM
Tiny
PEAR69
  • MEMBER
Yall best read brian 1s' answer again. I reckon the edge juice with attitude programmer is reckin that truck of yours.
Was this
answer
helpful?
Yes
No
Monday, February 16th, 2009 AT 6:31 PM

Please login or register to post a reply.

Recommended Guides