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2000 Silverado, few problems

Discussion in 'Chevy Silverado Forum (GMC Sierra)' started by TheGhostInTheMachine, Aug 3, 2011.

  1. Ok, so I picked up a 2000 Silverado(135k miles) the other day. There are some things about the truck I love, but it does have issues. First when I got it home monday night, it idled high, like 2400-2500 rpm. I thought that was very wierd, no CEL but when I started it up the next morning it blew a cloud of blue(oil) smoke. Not just a little puff, a lot. Stopped quickly but I was still freaked out by it. So I drove it on the freeway 20ish miles (it was 75ish miles home from the dealer) just because I wanted to see if it would do the same thing this morning. Well today there was only a small puff, hardly noticeable. Any idea's? Another thing is that the tailgate doesn't latch unless you slam it closed. I'm used to shutting the tail gate on our '98 but on the newer truck you really have to slam it closed. Next issue is that the hood latch cable doesn't return, so every time I pop the hood I have to push it open with a screwdriver. Lastly, the passenger side mirror is loose, like flops around loose. Is that a common problem?

    If you guys need any more info, ask!

    Any suggestions or help is appreciated!

  2. silveradotrailblazer

    silveradotrailblazer Epic Member 5+ Years ROTM Winner 5000 Posts

    As far as the idle, I'd check for vaccuum leaks. I would pull the spark plugs and look for oil. Also I would do a good maintance on the truck, fuel & air filters, clean the MAF and throttlebody,spark plugs ( use A/C Delco's), wires, transmission and axle gear lube .
  3. davedyno

    davedyno Member

    First I would follow all of Silveradotrailblazer advice. On my 2002 Silverado 4.8 motor at about 120,000 miles I had a idle problem. A high rpm then a low rpm only at startup, after a warmed up everything OK. Also sometimes a big puff of blue smoke like yours, but not all the time. To make a long story short it was the intake manifold gasket sucking air on a cold motor.
    2011 Silverado 4X4 5.3 Z71 Ext Cab 18" Wheels

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