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#1
09-15-2009, 10:17 PM
Elcova Newbie
Join Date: Jul 2009
Posts: 4
No power
I have an 03 with 81000 miles on it and it just seems to have very little power when pulling a hill also it down shifts to a much lower gear than needed with the tach going up to almost 5 grand, I had new plugs an wires installed but still runs the same any ideas would be helpful Thanks
#3
09-16-2009, 12:19 AM
Hummer Professional
Join Date: Feb 2003
Location: Palm Desert, CA
Posts: 470
Re: No power
After you check for any codes run some Techron through it for several tanks of gas.
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#4
09-16-2009, 09:04 PM
Hummer Veteran
Join Date: Aug 2009
Location: NE US
Posts: 124
Re: No power
For a quick fix the TECHTRON is a great product. Sounds like a computer malfunction though by the way your describing the problem.
I had a similar problem in my SS silverado when I replaced the chip with the stock one prior to selling it. I took it to the dealer and they "re-flashed" it and after about 1/2 mile down the road it went back to normal.
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