[EDNY]

Ebay link:

http://www.ebay.com/itm/LATE-20-039-S-EARLY-30-039-S-CHEVY-CHEVROLET-PICKUP-CAB-/172270704252?&_trksid=p2056016.l4276

[vette59jdwl]

Ed how the hang do you find so much stuff  OH by the way somewhere along the road i heard that you were the man to talk to about the small v8 in the 2000 GMC sierra S-15 I know it has a 700 R-4 behind it and that it is four wheel drive. The lad at Canadian Tire Garage told me that it did not pass the Emissions test i had a little talk with him and he said he never seen one that blew that high.so i asked him what would cause that and he said that the E.G.R. valve was in all probability stuck open.OK ??Where the hang is the E.G.R valve hiding.I have looked all over and have not found it yet  thanks   vette59jdwl

[EDNY]

If it's an S15..(AKA S10) probably a V6 and since it's a 2000 probably a 4L60E trans.

The EGR will be on the intake and looks like this:

[vette59jdwl]

Thanks Ed  I will have to take a look tomorrow sometime  thanks again   vette59jdwl

[vette59jdwl]

Yes Ed its a 4.6 engine with a 700$4 four wheel drive S-15 Jimmy  1992 sorry about the error  and yes the Egr looks similar to the one you have the picture of  the mechanic tells me he thinks it is stuck open because he never seen one blow so high on a test   vette59jdwl

[vette59jdwl]

Ed can one take these apart and clean them or are they just replacable  thanks

[themoose]

What part of the emissions were high....HC, CO or NOx.. EGR being stuck would cause high NOX but if one of the other readings is high it could be something else. I believe the one on your engine the EGR is the stepper motor style and the motor is usually the culprit and if so it has to be replaced. A malfunctioning  EGR will usually turn on the engine check light and set an engine code