remove the intake hose and the exhaust port screwed into the egr valve, the remove the two retaining bolts from the intake and clean any old gasket material away. if possible run a piece of wire down the hole to make certain the passage is clear of carbon build up
It could be that your EGR valve has failed or has a piece of carbon stuck in it .
heater control valve located on 2001 gmc jimmy 4.3l
Depends on the year. Here is a site that has pictures of an EGR valve for a 1997 - 1999 Suburban: http://www.racepages.com/products/?D=gmc+suburban+egr+valve&Nty=1&Ntx=mode+matchallpartial&Ntk=Main&N=4294950670+4294963366+9926&Dx=mode+matchallpartial&Ntt=gmc+suburban+egr+valve Go to www.racepages.com and search for an EGR valve for your year rig.
The EGR valve is located in the center of the intake, at the front of the engine, between the alternator and the A/C compressor. I've added a picture of the location to the links on the right. It is titled "Picture of EGR valve location, on 1996 - 2001 4.3L (262c.i.) Vortec V6 engines"
When my 1997 Jimmy did this , it was a dead alternator. However, The same symptoms in my 1994 came from a clogged EGR valve.
The PCV valve on a 1999 GMC Jimmy is located on top of the engine, on the left side. It connects the valve cover to the intake manifold.
behind the throttle body
The EGR valve is located on the intake manifold,behind and to the passenger side of the throttle body.
yes they do... Or at least on a duramax
Under your intake manifold. Its a pain to change them, so do them all and clean out thee egr valve too. it is also under there.
Check for a vacuum leak. Pay particular attention to the EGR valve, on the drivers side of the intake manifold, right by the throttle body.
it is actually your valve core in your valve stem on your wheel to inflate the tire!
There isn't a fuel shutoff valve.
You have a problem with the EGR system, the pintle positon circuit.
Front of Engine near Thermostat Housing
A simple but effective test is to remove the linear EGR and tell a helper to turn on the ignition (don't crank the car thought). You should see movement in the EGR. A the very least a small vale should either move outward or inward.
why is my 1990 305 gmc idling rough when on the gas peddle runs great
The EGR valve is located on the front part of the engine on a 2002 GMC Yukon XL SLT. It is in front of the area where you add oil to the car.
This is from AutoZone: "On your 1997 GMC TRUCK SAFARI VAN 2WD, the EGR VALVE is UNDER HOOD, CENTER, UPPER ENGINE AREA, FRONT OF INTAKE MANIFOLD, PASSENGER SIDE OF WATER OUTLET, MOUNTED IN INTAKE MANIFOLD."
tRe dleplace IAC Valve
it is near the front of the engine it has stainlees steel outer cover
You just ask a redneck how!!
Under the bed , on the rear passenger side of the fuel tank.