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Cadillac Tech Tips - How to fix it Discussion, How To Clean The EGR Valve in Item Specific Cadillac Discussion; When I took my egr out to clean it, I didn't use a new gasket. Never had a problem with ...
  1. #46
    Eldyfig's Avatar
    Eldyfig is offline Cadillac Owners Connoisseur
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    Re: How To Clean The EGR Valve

    When I took my egr out to clean it, I didn't use a new gasket. Never had a problem with it.


  2. #47
    Talamant3z's Avatar
    Talamant3z is offline Cadillac Owners Enthusiast
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    Re: How To Clean The EGR Valve

    how do you clean one from a 97 eldroado i got one bolt off but the other is under the fuel line which i cant get off

  3. #48
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    Re: How To Clean The EGR Valve

    You have to lift the fuel rail.

  4. #49
    Seville44 is offline Cadillac Owners Member
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    Re: How To Clean The EGR Valve

    Sorry, I can't tell by the last picture, where exactly do you spray the carb cleaner? everywhere but inside the allen ekey looking hole?

  5. #50
    diablo69 is offline Cadillac Owners Member
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    Re: How To Clean The EGR Valve

    Is there anything called a "PVR" valve? Someone told me that was my problem but it was probably the EGR valve he was thinking of. Suggestions"

  6. #51
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    Re: How To Clean The EGR Valve

    No such thing.

  7. #52
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    Re: How To Clean The EGR Valve

    Quote Originally Posted by Seville44 View Post
    Sorry, I can't tell by the last picture, where exactly do you spray the carb cleaner? everywhere but inside the allen ekey looking hole?
    You can spray it in there just as long as you're careful not to get it into the big canister portion of the valve. The carb cleaner will eat away at the insulation on the electrical windings of the valve if it does go in that area.

  8. #53
    NeMiZiS is offline Cadillac Owners Member
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    Re: How To Clean The EGR Valve

    Nice write up!

  9. #54
    Frep85 is offline Cadillac Owners Member
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    Re: How To Clean The EGR Valve

    I just followed the instructions and cleaned out the EGR-valve. Replaced air filter as well. The car runs perfect without the jerky rpm at low speed. But here's a problem: the cruise control as well as the left power window on the backdoor stopped working.

    Does anyone know why? I know this is a pretty common problem but I really don't want my top condition Cadillac suffer from this

  10. #55
    justus is offline Cadillac Owners Member
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    Re: How To Clean The EGR Valve

    Great thread! I just cleaned my EGR and it did the trick. Biggest problem I had was that the last person to replace/clean the valve didn't put the brace for the fuel rail back on correctly, so it (the brace) was over the nut. I had to pry the fuel rail over with a screwdriver with one hand and remove the bolt with the other. That was sorta scary because I didn't want to kink up the fuel rail, but it was fine. I figured the guy who did the last job couldn't find the hole. I never have that problem.

  11. #56
    Bigjack21000 is offline Cadillac Owners Member
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    Re: How To Clean The EGR Valve

    Thank you for the pictures!

  12. #57
    farmerjohn is offline Cadillac Owners Member
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    Re: How To Clean The EGR Valve

    Great tips here.
    But I wonder about the pintle. My Chilton repair book says the pintel should be cleaned. They have a picture on page 4-7 that shows the assembly of the EGR valve. It looks like the hole you are not spraying solvent in has a screw that allows to take the EGR valve apart.
    Is it possible to get it back in correct function if I take it apart? I'm especially worried about the spring tension.
    Electric cleaner should not dissolve the insulation, but clean out the dirt. Do you think that would lessen the risk of ruining the mechanism if it came into the hole beneath the valve?

  13. #58
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    Re: How To Clean The EGR Valve

    I spray it in the opening under the "can" where you can see the pintle valve and use a dental pick to scrape the carbon loose. Tedious and time consuming, but with the right tool you can do a good job.

  14. #59
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    Re: How To Clean The EGR Valve

    I tried to get the EGR out on my 95 STS and the steel fuel line is in the way and won't budge! What do I have to do to get the fuel rail out of the way. Looks like the factory upgrade was done.

  15. #60
    Ranger's Avatar
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    Re: How To Clean The EGR Valve

    You need to separate the rail from the supply line and then remove the hold downs. Then lift the rail and injectors out.

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