Uncle asa,
Sorry brother, i didnt mean to start a hijack...... Back to your question, CLEANING the egr. The other post about the fire, and blowing up things.....dont let it intimidate you too much. I guess i could happen, I got a large phillips head screwdriver and a shop rag, starting with the corner of the rag,i poked it down the hole closest to the firewall, and just kept packing it in there REAL TIGHT!!!
After that, i sprayed intake cleaner, throttle body cleaner with the small tube attached (as long as its oxygen sensor safe) down the other hole, and let it soak.
while it was soaking, i took the 4" diameter air intake off of the throttle body, so i could get behind the "butterfly" in the throttle body.
Carefully manipulate the butterfly all the way open, and look for a small tube at the bottom, its about 3/8 dia. spray some of the intake cleaner into that hole and let it soak.
NOW, while all thats soaking, I turn the actual egr valve upsidedown, fill the cacity up with the cleaner and let it soak.
Now back to the throttle body.....i had a rifle cleaning brush, dont know the size, but it was a bit smaller than the tube in the throttle body. i attached it to a section of the rifle cleaning rod, and opened the butterfly again with one hand, and used the rod with brush attached, and scrubbed the inside of that 3/8 tube as best i could, being careful not to damage the butterfly, or bust anything else. after doing this, i "rinsed" the tube out with the cleaner,while im in there, i used the same cleaner to clean up the throttle body itself, and used a rag to get the inside of the throttle body clean and "aluminumy" and re-assembled the air intake to the throttle body.
now with the egr still removed, and soaking, get your intake/throttle body cleaner, with tube attached in your hand, go start the truck, if the rag is still in the hole, spray some short burst of spray down the egr valve hole thats not plugged up. do this several times. ( the spray may stop the engine, just go start it again, and continue)
i sprayed quite a bit of the spray down there, but definatly not the whole can.
shut the truck off, and remove the rag.
now i just carefully started pushing on the "piston" up and down. if it gets stuck in the down position, i spray some more cleaniner in there, and tap it gently. just keep working with it till it moves up and down smoothly. you know, spray it, soak, pour it out, work it, spray it, work it, soak it, till it works smooth,
replace the gasket (in my case, the gasket came off clean and undamaged, so i reused it) put the egr back , and bolt it down. you should be in good shape now. replace the pcv valve now too. I felt a big difference in the way the truck drove. smoother idle, etc.
Hope this makes up for making this a gasket thread, asa.
and it will also come up again if someone uses the search, so its all good
Take care my friend
Hope this helps
David
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