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Old 01-02-2008, 10:49 PM
H2 Bill H2 Bill is offline
Hummer Professional
 
Join Date: Feb 2003
Location: Palm Desert, CA
Posts: 470
H2 Bill is an unknown quantity at this point
Default Re: ENGINE BREAKING UP AND MISSING BETWEEN 5000-6000 RPM

I have had the problem a couple of times too. Once it was a burned ignition wire (actually twice) and the other was clogged injectors due to bad gas. Now I only run Chevron or Mobil. I found this out by running a couple of bottles of Techron through the tank and it cleared it right up.
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2003 H2 Hummer, Yellow,Polished Whipple Supercharged, Dynatech long tube headers, catback,18\" Ambush w/Toyo MT\'s,lots of goodies!
Y2K Corvette Millennium Yellow Convert/Blk/Blk, B&B headers, B&B Tri-Flo\'s, H-Tech MAG,GMS MAF, RM Racing TwinFlow.
1994 Chev Suburban Blown
1970 Trans Am balanced, blueprinted, ceramic headers, etc.
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