Pinging and rotten eggs

[epricedright]

Thanks Adallak! Definately EGR problems for me then, as whenever I accelerate hard, the pinging magically disappears. I received my EGR solenoid today and will try it out hopefully tomorrow. We just had 5" of snow and our nights have gotten colder last couple days. I'll be sure to post the results.

[BodybyFisher]

Thanks Adallak for posting that, I was going to do the same and post the results, epriced, I was looking for an answer to your WHY does compromised EGR flow cause detonation and posted a question, Thanks

[epricedright]

I installed the new EGR Vacuum Solenoid today and I still have detonation. Surpringly, the detonation is not as bad, but still present. Maybe the engine didn't get as hot as to the decreased detonation, but nonetheless, it's still there. I will order a new EGR Valve tonight from Rock Auto. The vacuum tubes looked ok.

I see what you meant Adallak about the EGR replacement being a pain. Those 2 bolts are covered and buried in there pretty good. I went to Sears tonight to pick up a 13mm distributor wrench, and they only had a 9/16. I tried that, too big. I then tried a 13mm flex/swivel head ratchet wrench, and it appears that will get in there and work...barely. It's such a tight squeeze with the fuel lines in the way. I picked up the Gear Wrench brand 7 pc Flex Head set. I needed some new metric wrenches anyhow. They were $60.00 for the set. The Craftsman's were $100.00 Has anyone bought Gear Wrench brand tools before? Any good? They have a lifetime warranty, but you have to send them away. I figured I'd probably not use them that much hence why not spending the exrta $40.00 for the Craftsmans.

I also checked my FPR and it appears ok...no fuel coming out of the vacuum nipple. So that's good news. I imagine the intermittent sulphur smell is due to bad gas then. I forgot to hit my CAT w/ a rubber mallet to see if that's the cause. The curved rubber vacuum nipple between the FPR and the TB broke in half, so I need to pick one of those up as well. It's probably a dealer item as one end is bigger than the other.

I will post back when I get the valve in. Any feedback, good or bad, about the Gear Wrenches would be appreciated. They look decent, but it's not too late to take them back.

[BodybyFisher]

I have a metric set of gear wrenches and they are fine. I like the ratcheting wrenches a lot. I also thought the Craftsman were too expensive

[epricedright]

I have a metric set of gear wrenches and they are fine. I like the ratcheting wrenches a lot. I also thought the Craftsman were too expensive

Cool! They look decent, but you know how that is. Glad to hear you like them.

[BodybyFisher]

I have a metric set of gear wrenches and they are fine. I like the ratcheting wrenches a lot. I also thought the Craftsman were too expensive

Cool! They look decent, but you know how that is. Glad to hear you like them.

I also have a few of the Craftsman ratcheting wrenches, very little difference.

[epricedright]

WooHoo! I replaced my EGR valve tonight and the detonation (pinging) is gone! I want to thank everyone for all your help! Again, this board was right on! I learned a lot about EGR in the process. The job wasn't bad at all...the 13mm Flex Head ratchet wrench worked great.

I also changed my oil and the #1 bearing thump is quieter as well. The oil life monitor said I had 26% oil life left, but I think that Rotella 15W40 loses it's viscosity before the oil monitor indicates a change is due. I think I'll change it at around 40% for now on.

[BodybyFisher]

Glad to hear the detonation is gone. Your results solidify my thinking regarding light pedal 'pinging' on the 4.9 (or detonation) and echo my the experience I had with my 4.9.. Sometimes the only way to get rid of it, is to replace the valve... Thanks for posting your results, Mike

I was going to send you a case of beer if it was timing, what were you sending me when it was the EGR?

[epricedright]

Well Mike, if you would have only convinced me that the EGR Solenoid wasn't the problem, before I bought one , I would have sent you a bottle of chilled Cristal, but since you didn't, I'm left with only a warm six pack of Coors light.

[epricedright]

Hey Mike, I'm just curious, what did you do to attempt cleaning your old EGR valve? Does it come apart?

[BodybyFisher]

That sounds like a cop out to me

My first post in this thread was this:

"I could not get rid of it, UNTIL, I met a mechanic in my local CADDY dealer, he said, those EGRs are nearly impossible to clean, just replace it with an OEM EGR..... If you have gone through what I went through above, replace it with OEM

PROBLEM GONE NO MORE E046 either, I will send you a case of beer if its timing"

You didn't see me recommending EGR solenoid replacement did you?...I even said check that the EGR solenoid was functional

Kim I would have thought you would have known by now that I am RARELY wrong....and just followed my recommendation I'll just accept a HIGH FIVE

Hey Mike, I'm just curious, what did you do to attempt cleaning your old EGR valve? Does it come apart?

I tried multiple times to clean it, I soaked it, banged the side with a hammer, used wire brushes and compressed air, it doesn't come apart.. The problem with the 4.9 EGR is that you can't get to the pindle seat as easily as you can with the NS EGR. With the NS EGR you can bend a small wire brush to rub the seat, while turning the pindle with a TORX. The guru was adament that the 4.9 EGR could be cleaned so I kept trying. It is possible that my EGR was suffering from a mechanical problem that was limiting its ability to open also. Once the tech at the caddy dealer said they are nearly impossible to clean I replaced it, problem gone... just like you.. I tried to get rid of that pinging for about a year...

If you do a search, Marika is going through the same thing as you (light pedal pinging), her mechanic said it was timing/low octane (I thought mine had a timing problem also at first so I can see why he might think that) and Marika called the NJ State Bureau of Weights and Measures to complain about the stations octane content. When you spend a year with the 4.9 trying to get rid of the pinging and you discuss it over and over with the guru, it becomes easy to diagnose and fix. When you read the above information on detonation, you begin to understand how important EGR flow is.

[epricedright]

That sounds like a cop out to me

My first post in this thread was this:

"I could not get rid of it, UNTIL, I met a mechanic in my local CADDY dealer, he said, those EGRs are nearly impossible to clean, just replace it with an OEM EGR..... If you have gone through what I went through above, replace it with OEM

PROBLEM GONE NO MORE E046 either, I will send you a case of beer if its timing"

You didn't see me recommending EGR solenoid replacement did you?...I even said check that the EGR solenoid was functional

Kim I would have thought you would have known by now that I am RARELY wrong....and just followed my recommendation I'll just accept a HIGH FIVE

Well why you did wait 26 hours to post your reply? By then I had already ordered the solenoid. If you had helped sooner, I would have certainly heeded your expert advise. You need to get on the ball, and not be so slow, and realize I was "standing by...." .... awaiting your advise. But don't worry, when I come to NY, I'm a still treat you to a big juicy steak from Gallaghers.

[BodybyFisher]

EXACTLY.... I am slipping, BUT, you had already ordered it buy the time I posted. Here is what is on my plate in the last two weeks:

1) having driveway, two walkways, front steps, patio installed workers here everyday asking questions and I am feeding them

2) had 3 cesspools installed

3) had a french drain installed in the basement with sump pump, had to move about 400 plastic storage boxes

4) having an 8 foot Andersen front window installed

5) having a lawn sprinkler system installed

6) my 39 yo neighbor died of a heart attack on saturday was at wake and funeral (yesterday)

7) yesterday the 'tempered' glass shower door exploded into a million tiny pieces cutting both my hands

8) had one year old lab nutered on sat

9) had back up hard drive self destruct copied data and sent back

10) did my sons rear brakes while he was in for spring brake

11) went to hospital last friday with heart palps, and had EKG need stress test (I wonder why)

Not to mention doing real estate appraisal work in between, and delivering 2 reports since last friday...and contributing here..

Boy do I need vacation. Its been a rough time. You think there is ANY reason I would react badly to STANDING BY?

I love Gallegers, I used to go there monthly, I will meet you there or Mortons, sounds great (let go Dutch however these places are expensive!)

[epricedright]

EXACTLY.... I am slipping, BUT, you had already ordered it buy the time I posted. Here is what is on my plate in the last two weeks:

1) having driveway, two walkways, front steps, patio installed workers here everyday asking questions and I am feeding them

2) had 3 cesspools installed

3) had a french drain installed in the basement with sump pump, had to move about 400 plastic storage boxes

4) having an 8 foot Andersen front window installed

5) having a lawn sprinkler system installed

6) my 39 yo neighbor died of a heart attack on saturday was at wake and funeral (yesterday)

7) yesterday the 'tempered' glass shower door exploded into a million tiny pieces cutting both my hands

8) had one year old lab nutered on sat

9) had back up hard drive self destruct copied data and sent back

10) did my sons rear brakes while he was in for spring brake

11) went to hospital last friday with heart palps, and had EKG need stress test (I wonder why)

Not to mention doing real estate appraisal work in between, and delivering 2 reports since last friday...and contributing here..

Boy do I need vacation. Its been a rough time. You think there is ANY reason I would react badly to STANDING BY?

I love Gallegers, I used to go there monthly

Wow Mike, you do need a vacation...seriously! After you get done with all that, be sure to not put any more on your plate, and take a break. Life's too short for all that stress. That's sad about your neighbor! Take care of your heart Mike!

I'm jealous though as I would give my left stone for a sprinkler system.

[BodybyFisher]

He is a landscaper, not in great physical shape but active. The sad part is that he has a 2 year old daugher. The morning he died she was on the lawn calling for her Daddy... it brought tears to my eyes.. very hard, this just doesn't make sense.. Terrific guy with a big heart would do anything for anyone.. maybe too big now looking back.. Thanks, Kim

We will go dutch when you come to the big apple, Galleghers is expensive, I sent a relative there once and he almost killed me because of the price.. I used to attend a monthly meeting there, the steak is amazing... let me know!

[epricedright]

That is so sad! We do not know why things like that happen, nor can we explain it with our limited vocabulary. I will prey for his daughter.

For all you've done to help me in the past, Gallaghers would be my treat. I know about their prices, as it is one of my favorite restaurants in Las Vegas. They have one there at the New York New York hotel & Casino. Their Alaskan King Crab legs were awesome as well!

[adallak]

Here is what I usually recommend to do if one has that "hot -engine- slight -throttle -ping"

1. Clean the EGR tubes.

2. Clean TB

3. Make sure all the vacuum lines are fine, replace as necessary.

4. Buy a new EGR solenoid from a store (not online!). Keep the receipt. Install it in minutes to see if it makes differenve.

5. If It does solve the problem, you are done and the ping is gone (this is really rare though). Get rid of old EGR solenoid.

6. If it has not not helped, get a new OEM EGR valve and gasket online. Keep the old EGR solenoid!

7. Replace the EGR valve.

8. If the ping is gone (most likely), put your old EGR solenoid back in minutes.

9. If ping does not return, return the new EGR solenoid to store. No damage to the part could be done.

10. If ping returns, reinstall the new EGR solenoid and get rid of old one.

People usually do not care of some $27 spent on EGR solenoid, so I skip that step. The most important thing is not attempting to diagnose the problem or clean the EGR valve. It just is not worth the time you'll spend.

[epricedright]

Here is what I usually recommend to do if one has that "hot -engine- slight -throttle -ping"

1. Clean the EGR tubes.

2. Clean TB

3. Make sure all the vacuum lines are fine, replace as necessary.

4. Buy a new EGR solenoid from a store (not online!). Keep the receipt. Install it in minutes to see if it makes differenve.

5. If It does solve the problem, you are done and the ping is gone (this is really rare though). Get rid of old EGR solenoid.

6. If it has not not helped, get a new OEM EGR valve and gasket online. Keep the old EGR solenoid!

7. Replace the EGR valve.

8. If the ping is gone (most likely), put your old EGR solenoid back in minutes.

9. If ping does not return, return the new EGR solenoid to store. No damage to the part could be done.

10. If ping returns, reinstall the new EGR solenoid and get rid of old one.

People usually do not care of some $27 spent on EGR solenoid, so I skip that step. The most important thing is not attempting to diagnose the problem or clean the EGR valve. It just is not worth the time you'll spend.

Adallak,

I was just kidding with Mike about the Solenoid. I too did not care about the $27.00 part. I knew it was a gamble buying it and took that gamble willingly. No big deal at all! Besides the part was 12 years old and was probably destined to go bad one day soon anyhow. I thank you Adallak for your help as you are and always have been a big help to me. No worries mate!

Maybe Mike could share his testing procedure for the old solenoid he referred to? That would have been good to try 1st.

[adallak]

Here is what I usually recommend to do if one has that "hot -engine- slight -throttle -ping"

1. Clean the EGR tubes.

2. Clean TB

3. Make sure all the vacuum lines are fine, replace as necessary.

4. Buy a new EGR solenoid from a store (not online!). Keep the receipt. Install it in minutes to see if it makes differenve.

5. If It does solve the problem, you are done and the ping is gone (this is really rare though). Get rid of old EGR solenoid.

6. If it has not not helped, get a new OEM EGR valve and gasket online. Keep the old EGR solenoid!

7. Replace the EGR valve.

8. If the ping is gone (most likely), put your old EGR solenoid back in minutes.

9. If ping does not return, return the new EGR solenoid to store. No damage to the part could be done.

10. If ping returns, reinstall the new EGR solenoid and get rid of old one.

People usually do not care of some $27 spent on EGR solenoid, so I skip that step. The most important thing is not attempting to diagnose the problem or clean the EGR valve. It just is not worth the time you'll spend.

Adallak,

I was just kidding with Mike about the Solenoid. I too did not care about the $27.00 part. I knew it was a gamble buying it and took that gamble willingly. No big deal at all! Besides the part was 12 years old and was probably destined to go bad one day soon anyhow. I thank you Adallak for your help as you are and always have been a big help to me. No worries mate!

Maybe Mike could share his testing procedure for the old solenoid he referred to? That would have been good to try 1st.

Epricedright,

Glad the ping is gone with minimum effort. The list I posted was rather for future reference. My point was that the EGR components are not really expensive, and spending hours to diagnose, remove, clean, reinstall old components just does not make much sense since one or more of them are most likely not repairable.

[BodybyFisher]

Maybe Mike could share his testing procedure for the old solenoid he referred to? That would have been good to try 1st.

This is from the manual Driveability and Emission Controls 6E-C7

1) Connect a vacuum gage to the source side of the EGR solenoid. Start engine, manifold vacuum should be present. If it is not, repair leaks or obstruction between the EGR solenoid and throttle body.

2) Connect a vacuum gage to the EGR valve vacuum supply. There should be no vacuum with the engine idling. If there is follow Chart C-7 in the manual.

3) With the gage still connected to the EGR valve vacuum supply, disconnect the EGR solenoid connector. There should be more than 8 inches of vacuum available. If not repair leak or obstruction in EGR valve vacuum hose.

If you don't have Chart 7 (EGR System Diagnosis) in the manual, I will scan it, two of the three legs lead to REPLACE SOLENOID, others are REPLACE VALVE, CLEAN EGR PASSAGES and FAULT NOT PRESENT.

Mike

[epricedright]

Thanks Mike for that info! That looks to be simple enough, but how much for a vacuum gauge...let me guess...$27.00

My gauge has always been my finger...if I feel suction, then I have vacuum.

[BodybyFisher]

Thanks Mike for that info! That looks to be simple enough, but how much for a vacuum gauge...let me guess...$27.00

My gauge has always been my finger...if I feel suction, then I have vacuum.

$27.00 Bahaaaaa! I have a different tool for measuring SUCTION other than my FINGER, :lol: and its very accurate...

Vacuum gages are very useful with these cars however.. I have had a vacuum gage since the 70's

[epricedright]

"Different tool"...HAHA!

Now that I think about, I think I do have a vacuum guage. It's probably in that toolbox of tools I hardly ever use, that also has my old brake shoe spring remover tool, tuning fork, and transmissiom modulater valve socket in it, among other things.

[adallak]

Mike, can you rich for EGR solenoid with your very special tool? I mean with your feet on the ground?

[BodybyFisher]

Mike, can you rich for EGR solenoid with your very special tool? I mean with your feet on the ground?

I WISH, no let me correct that, MY WIFE WISHES...