close

Privacy guaranteed - Your email is not shared with anyone.

What is an EGR valve...

Discussion in 'Car Forum' started by -gunut-, Aug 1, 2007.

  1. -gunut-

    -gunut-

    Joined:
    Oct 2, 2005
    Messages:
    5,660
    Likes Received:
    0
    Location:
    Prague, CZ - Oregon
    and how much should it cost to replace it? I have recently been having an issue with my 97 Kia Sportage that my mechanic diagnosed as an issue with the EGR valve. My car had been pulsing when idling, but would smooth out when I gave it some gas. He took a look at it, and I have no idea what he did, but now it seems to run fine. He still says I need to get the valve. So how much should this be? He is quoting a total of $300 for part and instillation. Thanks for the help guys!
     

  2. -gunut-

    -gunut-

    Joined:
    Oct 2, 2005
    Messages:
    5,660
    Likes Received:
    0
    Location:
    Prague, CZ - Oregon
    Yeah....but I do have a friend that is a mechanic for my city! I had him install a new oxygen sensor when that went bad. That same repair guy quoted me $300 for part and instillation. I found the part for $70 and paid my friend $50 to install. I was looking around the net last night and was able to find two sites that had an EGR valve for my model/year Kia for $70! So if I go to this guy I am being charged $70 for the part+ his $130 mark up+ $100 for install. :shocked:
     
  3. Tennessee Slim

    Tennessee Slim Señor Member CLM

    Joined:
    Apr 14, 2004
    Messages:
    4,413
    Likes Received:
    0
    Location:
    Mucus City, USA
    I hear you. The dealer charges $400 to change an O2 sensor on my car. I pay $80 for the part and do the job myself in 30 minutes, including the "standing around, sipping on a beer, admiring my handiwork" phase.
     
  4. crazypilot

    crazypilot ERAU Alumni '05

    Joined:
    May 21, 2007
    Messages:
    1,404
    Likes Received:
    0
    Location:
    Las Vegas, NV
    I hope it's your EGR valve and not the solenoid or the vacuum. I changed the valve and the vacuum because a mechanic told me that was the problem. I spent around $200 on parts (I installed myself) and they still didn't fix it. I should just took my vehicle straight to the dealer and had them troubleshoot and replace my solenoid. Even with labor added, I would of saved some money. Also, it is a pain to try to change the solenoid on a Toyota Rav4.:upeyes:
     
  5. One Ragged Hole

    One Ragged Hole Dis ain't funny

    Joined:
    Nov 13, 2002
    Messages:
    456
    Likes Received:
    19
    Location:
    Just hangin around
    Go to an Autozone and have the error codes in the computer checked. You'll know exactly what needs replacing. They scan for FREE.
    O-R-H
     
  6. NotAMonte86

    NotAMonte86

    Joined:
    Nov 20, 2005
    Messages:
    360
    Likes Received:
    3
    Location:
    Treasure Coast, FL
    AutoZone can check your DTC's for free, but that won't pinpoint the exact problem.

    If your car had problems at idle, the EGR valve may be stuck open. I have seen this problem before, and when I pulled the EGR valve off, there was a chunk of carbon holding the EGR valve open.

    You could also have a vacuum leak. If it's vacuum-controlled (has a vacuum line running to it vs. electrical wiring) it could have a tear in the diaphragm. If it's accessible, while the car is idling, you can pull up on the diaphragm (in the direction of the arrows... see pic) and the car should start to run rough/stumble/die.

    [​IMG]

    Are you getting ripped at $300? Well, that depends on it's location and level of difficulty. I would definitely rather do it myself. If someone already pulled the EGR valve and it now runs better, but the person says you still need one, then you need to ask him what he did or what was wrong with it.

    Good luck!
     
  7. ecmills

    ecmills I shoot guns.

    Joined:
    Oct 8, 2004
    Messages:
    1,570
    Likes Received:
    2
    Location:
    Memphis, TN
    Except that, just behind oxygen sensors and catalytic converters, EGR codes are thrown incorrectly by vehicles more often than anything else.

    The DTCs tell you which system to look at, and it's the technician's job to fault-trace and diagnose from there. Replacing the EGR valve won't do you much good if there's a vacuum leak in the line running to it, or the plumbing from the exhaust manifold is clogged with soot.

    Computers never lie, but they're often wrong. ;)

    Given the stumbling issue at idle the original poster described, I'd begin with a quick check for a vacuum leak at the EGR or in the line running to it.
     
  8. FireMech Dr.jay

    FireMech Dr.jay

    Joined:
    Jun 20, 2007
    Messages:
    4
    Likes Received:
    0
    Location:
    Republic of Kalifornia
    Also, EGR valves require some amount of backpressure, so if you have a rusted out, missing, or aftermarket "fast and furious" exhaust, that could cause the valve not to operate.

    Hope you get it figured out!!