My '04 Chevy Z71 stutters/shakes at 50-55mph...? need help.

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My '04 Chevy Z71 stutters/shakes at 50-55mph...? need h... - 5/5/2008 6:44:59 PM    live4perfection   Posts: 4 Joined: 11/8/2006 Status: offline I own a 2004 Chevy Silverado Z71 Crew Cab...everything stock. A few days ago I had my radiator taken out to get cleaned and right after I had it put back on I left my house and hit the expressway....this is when my truck started to stutter/shake at 50-55mph...since then i have replaced all the spark plugs but the problem is still there...what can it be? could it have resulted from the radiator situation? please inform. Post #: 1

RE: My '04 Chevy Z71 stutters/shakes at 50-55mph...? ne... - 5/6/2008 1:46:32 AM    sybra   Posts: 7 Joined: 4/25/2008 Status: offline #1 suspect is the fuel filter in the tank. #2  THE FUEL FILTER ON THE FRAME. (in reply to live4perfection) Post #: 2

RE: My '04 Chevy Z71 stutters/shakes at 50-55mph...? ne... - 5/6/2008 7:55:32 AM    EuroGoldLS Posts: 1589 Joined: 7/12/2007 From: Princeton, NC, USA Status: offline Could be the EGR valve most likely. _____________________________ VOTE for Ride Of The Month!!! PM me for a custom sig or avatar! (in reply to sybra) Post #: 3

RE: My '04 Chevy Z71 stutters/shakes at 50-55mph...? ne... - 5/6/2008 8:59:04 AM    live4perfection   Posts: 4 Joined: 11/8/2006 Status: offline what i dont get is WHY...at 50-55mph ONLY? _____________________________ a bad day of hunting is better than a good day at work! (in reply to EuroGoldLS) Post #: 4

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