1988 Chevy S-10 s-10 egr code

1988 CHEVROLET S-10
317,419 MILES • 6 CYL • 2WD • AUTOMATIC
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CAR TOM
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  • 45 POSTS
hi;
I OWN A '88 S-10 with 317.419(thats right) miles. This old boy has and is working like a swiss watch except for an egr code which occurs at 55 mph. I pulled out the egr valve and tried that repair manual check by pushing up on the diapghram and holding my finger over the vacum hole, it held its pressure/vacum. So what i did was buy a new $100 egr solenoid, that did not solve the problem what would cause the egr code to be activated?
Thank YOU
Sep 25, 2008 at 12:55 AM
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RHALL77
  • CERTIFIED EXPERT
  • 3,361 POSTS
blow throught the vaccum lines and make sure they are not blocked
Sep 25, 2008 at 3:50 PM