EGR
10-08-2002 | 11:23 PM
#1
Thread Starter
Member
Joined: Apr 2002
Posts: 93
87 na failed smog today cause they say that the EGR valve is bad,
Is changing the EGR valve a big job?
smog shop says that it will cost $600.00 for the valve and around $400.00
for labor. I was thinking maybe i could buy a used valve somewhere
and change it myself, or is there something else i can do to get it to
pass smog?
Is changing the EGR valve a big job?
smog shop says that it will cost $600.00 for the valve and around $400.00
for labor. I was thinking maybe i could buy a used valve somewhere
and change it myself, or is there something else i can do to get it to
pass smog?
10-08-2002 | 11:35 PM
#2
Senior Member
Joined: Oct 2001
Posts: 10,906
From: Peoria, AZ
wow, talk about bs. 1 its easy to change, just have to take off the upper intake manifold and its a couple of bolts and a vac line. 2. I doubt that stupid little things costs that much. It causes u to fail emissions, if its failing, i didn't know that. 
10-09-2002 | 12:36 AM
#3
Senior Member
Joined: Oct 2001
Posts: 790
From: Portland, OR
Hopefully it's just the valve isn't working and the path isn't clogged with carbon. Before you go through all the work, connect the EGR vacuum line to a hand pump (or good vac source on your manifold). It the EGR valve is working it will cause your motor to stall as it lets exhaust into the combustion chamber (not good for performance, but it reduces emissions on deceleration and actually reduces combustion chamber temps).
Less than a dozen bolts to pull the upper manifold. It's right underneath it.
What did you fail NoX ?
Less than a dozen bolts to pull the upper manifold. It's right underneath it.
What did you fail NoX ?
10-09-2002 | 12:45 AM
#4
Senior Member
Joined: Oct 2001
Posts: 1,847
From: Marysville WA.
Sounds like a CROCK OF ****!! You can buy a brand new one from Mazdatrix for 230$. Or you can find a used one for next to nothing from a boneyard or somebody who has one lying around. You can most definitely change it yourself. You will need to take off the upper intake manifold and throttle body which will all come off in one piece. You should also replace the gasket between the lower intake and the upper intake when you do this. If you have any questions about taking off the Upper intake manifold just ask and we can help. It's really quite easy and not worth 400$ for labor.
10-09-2002 | 12:47 AM
#5
Senior Member
Joined: Oct 2001
Posts: 1,847
From: Marysville WA.
10-09-2002 | 01:22 AM
#6
Thread Starter
Member
Joined: Apr 2002
Posts: 93
Originally Posted by dac' date='Oct 9 2002, 04:36 AM
Hopefully it's just the valve isn't working and the path isn't clogged with carbon. Before you go through all the work, connect the EGR vacuum line to a hand pump (or good vac source on your manifold). It the EGR valve is working it will cause your motor to stall as it lets exhaust into the combustion chamber (not good for performance, but it reduces emissions on deceleration and actually reduces combustion chamber temps).
Less than a dozen bolts to pull the upper manifold. It's right underneath it.
What did you fail NoX ?
Less than a dozen bolts to pull the upper manifold. It's right underneath it.
What did you fail NoX ?
actually it passed the visual inspection, passed the emissions test,
passed everything except EGR (functional).
the results for the idle emission test were:
HC (PPM) measured 30, the max allowed is 120.
CO (%) measured 0.04, the max allowed is 1.00.
so you can see the emmisions are well withen passing range.
i will try to located a used EGR valve, then when i get ready to change
it maybe someone can walk me through the prosses .
thanks.
10-09-2002 | 08:40 AM
#7
Senior Member
Joined: Oct 2001
Posts: 10,906
From: Peoria, AZ
Originally Posted by alton316' date='Oct 9 2002, 12:22 AM
[quote name='dac' date='Oct 9 2002, 04:36 AM']Hopefully it's just the valve isn't working and the path isn't clogged with carbon. Before you go through all the work, connect the EGR vacuum line to a hand pump (or good vac source on your manifold). It the EGR valve is working it will cause your motor to stall as it lets exhaust into the combustion chamber (not good for performance, but it reduces emissions on deceleration and actually reduces combustion chamber temps).
Less than a dozen bolts to pull the upper manifold. It's right underneath it.
What did you fail NoX ?
Less than a dozen bolts to pull the upper manifold. It's right underneath it.
What did you fail NoX ?
actually it passed the visual inspection, passed the emissions test,
passed everything except EGR (functional).
the results for the idle emission test were:
HC (PPM) measured 30, the max allowed is 120.
CO (%) measured 0.04, the max allowed is 1.00.
so you can see the emmisions are well withen passing range.
i will try to located a used EGR valve, then when i get ready to change
it maybe someone can walk me through the prosses .
thanks.[/quote]
i had a feeling it wouldn't make u fail. There is somone on the other forum selling a new one for $120. Put it probably still works just clogged, mine was so clogged when i took it off.
10-09-2002 | 11:07 AM
#8
Thread Starter
Member
Joined: Apr 2002
Posts: 93
Originally Posted by 1Revvin7' date='Oct 9 2002, 12:40 PM
[quote name='alton316' date='Oct 9 2002, 12:22 AM'][quote name='dac' date='Oct 9 2002, 04:36 AM']Hopefully it's just the valve isn't working and the path isn't clogged with carbon. Before you go through all the work, connect the EGR vacuum line to a hand pump (or good vac source on your manifold). It the EGR valve is working it will cause your motor to stall as it lets exhaust into the combustion chamber (not good for performance, but it reduces emissions on deceleration and actually reduces combustion chamber temps).
Less than a dozen bolts to pull the upper manifold. It's right underneath it.
What did you fail NoX ?
Less than a dozen bolts to pull the upper manifold. It's right underneath it.
What did you fail NoX ?
actually it passed the visual inspection, passed the emissions test,
passed everything except EGR (functional).
the results for the idle emission test were:
HC (PPM) measured 30, the max allowed is 120.
CO (%) measured 0.04, the max allowed is 1.00.
so you can see the emmisions are well withen passing range.
i will try to located a used EGR valve, then when i get ready to change
it maybe someone can walk me through the prosses .
thanks.[/quote]
i had a feeling it wouldn't make u fail. There is somone on the other forum selling a new one for $120. Put it probably still works just clogged, mine was so clogged when i took it off.[/quote]
No maybe you misunderstood It did make me fail.
10-09-2002 | 12:49 PM
#9
Senior Member
Joined: Oct 2001
Posts: 1,847
From: Marysville WA.
You know it could also be a bad vacuum line. My 82 would'nt pass the cruise emissions. I took it to a shop that I trust and they found that I had one cracked vacuum line which was causing my EGR to not work all the time. you might want to get a second opinion from a different shop.
