2006 chevy silverado extended cab 1500 z71 off road how to see if u joint is bad on rear driveline

On the drivers side fuel rail

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The linkage came loose from the shifter to the transmission, I suspect. That should be an easy, or cheap fix.

Those wires are to prevent static buildup on the hood. This buildup causes static noise on the audio system when driving. Also those straps are used for ground on the engine compartment light.

Joe, Could be a few things, U joint, E brake shoes falling off inside rotor, bad bearing in diff. better take it into a good tech. and have checked. too hard to diagnose from here. "Check the attached links,instruction and guides, Good luck
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Grinding noise Chevy Silverado and what caused it
So the front seal on my 2004 Chevrolet Silverado rear Diff was leaking so...
http://www.fullsizechevy.com/forum/general-discussion/technical-maintenance/415961-grinding-noise-coming-under-truck-rear-truck-help.html
Understanding and Diagnosing Rear Differential Noise Fuel Friction An...

Lets start at the beginning.
What resets itself, and what is the issue with the headlights ?

It could be a bad U-Joint on the drive shaft.

it should be a 4L60E.

These codes are for the evaporative emission system.The 455 is the vent solenoid.The 455 is a large leak in the evap.system.The vent solenoid I would replace because they go bad and will not work because they are under the vehicle in the rear of the truck.There is a bulletin for these and the vent valve is installed in another spot.The number for the bulletin is 02-06-04-037E.You should also look for a broken or loose hose or pipe that might have came off.Specially if you ran over something.If none found it could just be the vent solenoid stuck in the venting position.Good luck.

The stepping motors in the gauges go bad. do a search on ebay for CHEVY SILVERADO INSTRUMENT CLUSTER for cheaper repair options. The dealer charges around $300.00. It will continue to worsen.

definitely easier to remove the bed....unless you like the taste of dirt :-)....round up 3-4 buddys and everyone grab a corner after the bolts, ground straps, and fuel filler are loose, pick it up and set it back a foot or two (on the tires and bumper). That'll give you plenty of room to work.