Codes Indicate EGR Issue

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by rem7600, May 16, 2000.

  1. rem7600

    rem7600 1/2 ton status

    Apr 16, 2000
    Likes Received:
    Coeur d\'Alene, Idaho
    I looked a bit this morning for a list of the GM codes
    and found them at the following link. I did a search
    on "Service Engine Soon" and didn't find that anyone
    had posted the link before so I thought it might be
    helpful to other wondering what the codes are.
    I have a full text file with the stuff if anyone wants it...

    My issue was determined to be in the EGR circuit.
    Anyone have suggestions on cleaning/replacement?
    What should I do "best world scenario" and also
    "the cheap route!" :-) Thanx!

    <font color=purple>REM7600 - '89 Jimmy</font color=purple>
  2. kim tate

    kim tate 1/2 ton status

    Feb 17, 2000
    Likes Received:
    New Orleans
    On my '87 K5, the computer code for EGR valve came up. I removed/cleaned/replaced it. This fix lasted about 4 months, then the code reappeared along with poor idle problem. Finally payed $44 for a Borg Warner EGR valve and had my 12 year old son to replace it!! If you decide to buy a new valve, be sure to provide the parts man with the OEM part number. This insures you get the right valve and orifice washer.

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