it shoulb be replaced about every 35,000 miles but some might be rivited into the value cover
95 Chevy impala egr valve removal
Where is the EGR unit located on a 2001 Chevy Impala? picture please
The AC recharge valve on a 2001 Chevy Impala 3.4L V6 is near the firewall. It is the larger of the two tubing.
When you shake the PCV valve it should rattle. If it does not rattle then it is probably stuck and should be replaced.
The PCV valve on a 1999 Astro should be located on top of the valve cover. It plugs in and can be easily replaced.
The 2001 Chevy Impala vacuum module can be found on the back of the engine. The vacuum module valve will be near the top of the engine.
there should be a air valve on the engine that you can bleed the bubbles out of the cooling system.
No tools required pull valve from valve cover, pull valve from vacuum line, install new valve.
bad oil rings==head gasket== valve seals
were is the tfp valve position switch location on a 2001 chevy blazer 4.3 lt modle
put a new PCV valve in if it's bad.
the egr valve on a 2004 impala should be on the drivers side of the engine. It is located at the rear towards the firewall.