Question about 1999 Chevrolet Silverado 1500

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Where is the egr valve located on a 1994 gmc sierra with the 4.3 vortec v6?

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It will be located right under where the air snorkel attaches to the throttle body.

Posted on Sep 28, 2010

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Posted on Jan 02, 2017

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2 Answers

Where is the egr valve to vortec engine located


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Where is egr valve on a 4.3 v6


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I have a 99 gmc Sierra v6, I'm not car savvy at all, how do I go about locating the egr valve and cleaning it?


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It is only held on with 2 bolts, and is easy to take off and watch it open and close as you change vacuum to the control line. The EGR must shut off at idle and at high speed, or else it will die or lack full power. You may then wonder why have it on ever? Good question. What it does is poison the mixture slightly so that you can get by with lower octane gasoline. But still not a very good device. EGR valves are notorious for leaving deposits on the valve stems, shortening engine life when the valve guides wear out.

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I AM LOOKING AT TIMING ISSUES OR INTAKE MANIFOLD LEAK.OR EGR VALVE STUCK OPEN.

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I need the firing order for a 2003 vortec v6 engine GMC Sierra trucck


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Oil pressure sending unit


Hi there;

Your looking foer the oil pressure sensor on the 2004 8.1L.
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