fixbenz

btw your car is 12yrs old....things will deteriorate over time.

Goatman

Surging sounds like a vacuum leak.

fixbenz

my 97 surges at times on the interstate while driving, it doesn't bother me. yeh it may be annoying but thats just how it is, I wouldnt spend anymore time chasing down this unicorn, like what you are doing. anyone saying a timing chain does not stretch is BS. I have seen a few chains that have streched, but it is not by much, and its not a common issue. But what do i know, i am just one of those inept mechanics you keep mentioning, like joeb said there isn't an inept MB diesel mechanic in a 200mile radius of Birmingham. thats real nice to get insulted by someone who does not have a real doesn't have any formal mercedes benz training, just the fact that they come on here and talk **** and act like they know everything. I tell you this much If i knew everything I would be a millionaire. It really pisses me off to have someone do that, hey joe b can I come by your office and tell you how to do your job?
better yet why don't you come tell me how to convert my 98 to run on waste fryer oil you seem to know everything. I am not pissed off at anyone in particular, I just come to get my jollies off by reading JoeB's infinate wisdom.

Untertürkheim

I am not sure I understand exactly what you are saying, it seems as though you think that there are not incompitent mechanics? I can assure you, they are the vast majority, which is why I started going back to the dealership.

TMAllison

The point I made previously was that TC stretch on the 606 engines is not like that which occured on prior engines (eg: 61x) family.

I "think" you agree based on your comments.

Finding a good diesel Mech at a dealer here in the US is def more dificult than in the UK. Here, diesels are a rarity and mechanics who are willing to pay attention and learn their diagnosis and who become competent are even more rare. I can't tell you how many times I've visited the dealer and had them come back and say they can find nothing wrong and with straight face claim the next locigal step is to replace the ECU or do a compression test.....is oftentimes very frustrating.

fixbenz

diesels are rare in the US, but that is about to change. I realize this so i do occasionally hit the books and study up on them. I know people at crown, and i know many of them are not inept. I have seen both sides of the stories on Joeb's issue with crown, yeh maybe the wrong person got working on his car the first time, but thats whatever. I have read all of his posts, the fact that he said that there is not a competent mercedes diesel tech in a 200 mile radius ( i took that as an insult because I do work with in that 200 mile radius). Im not much of a online diagnoser, i have to physically see and feel the car myself, other than that it is just guessing and pulling a fart out of the wind. As far as surging goes, my 97 surges every once in a while, and trying to duplicate it is often just as nerve racking. my time costs me money, and Im not trying to rip anyone off, i try to be fair.

I dont know if the guy has owned a diesel in the past, but they can be tempermental. and often duplicating the problem is difficult, you can have all the information and diagnostic manuals at hand, and until the car acts up is when you can pinpoint the problem. I dont know what goes on in his mind, but i think he just wasted a bunch of money. I have not seen or worked on his car, but believe me after reading some of his posts, I would not even bother to work on HIS car. My best advice for him is just sell the car, and get it out of his life. Surging has always been an issue with this particular diesel, it is known at MB. this is just an old problem. like i said I have never seen this car, and Im pretty sure this guy doesnt like me already, and thats fine with me. i have had some weird quirks with my 210 diesels, but i just dont have to throw down $$ all the time to have someone half guess my problems, i address my problems and fix them, as needed.

240D 3.0T

The injection pump (throttle) is completely computer controlled on 96+ models. Surging may be an error within the computer itself, wire connection issues at the pump, a dead spot in the throttle position sensor or the cruise control programming (engine computer) acting up.

Goatman

A surge usually indicateds a vacuum leak... 2x now.

fixbenz

there is nothing worse than this place, it's all flogging a dead horse, and nothing is getting accomplished here.

240D 3.0T

Vacuum has absolutely nothing to do with engine performance on a diesel.

TMAllison

TMAllison

fixbenz

that is why i rarely if ever bother to post here. People think they know everything. And when they come on here they &@*#ch about going to dealers. When you go to the dealer, you pay for MY TRAINING, MY KNOWLEDGE, and MY EXPERIENCE. It not always the easiest car to work on, and you can't take it to Joe Average Mechanic to work on, because he can't. Sorry you bought the Benz. I own 2 diesels. Like I say to myself and everyone else. You have got to PAY to PLAY!

To sum up this page, DIESELS DO NOT MAKE VACUUM, they have their own seperate vacuum pump! I think this guy has got something set in his head that there is something wrong with the car, which probably isn't anything wrong with it. He has been had just like a sissy in prison, he's been handed over all over town. He anilhilalated his relationship with Crown. Being a MB Tech its a small world, word passes. He might as well go out of state to get his car worked on, by factory trained techs.

TMAllison

I'd have to disagree with you partner on some of your points.

Most techs on forums who identify themselves as such and offer their advice and expertise are VERY appreciated. This place IS a bit different......very few techs hang here and a lot more trolling and idiotic posting is allowed by the moderators.

The OP is frustrated. It doesnt help that he complains about techs qualifications but there reamins some justification in that 606.910's and .912's did not leave the factory surging dwon the freeway 50-100rpm......so, I diagree with you that there is nothing worng. I do agree that it is fairly minor in the grand scheme of things and perhaps not worth the cost if you can't test and diagnose electrical and mechanical controls yourself.

harkgar

This is not a trade blog so live and let live.

I am having a lot of fun here. Let your hair down guys.

I cannot as I do not have a lot left.

240D 3.0T

Then there are those of us that keep it cut very short (My beard is much longer than my hair).

Goatman

Really?


Let's let your education begine, junior.....



EVERY ENGINE ON THE PLANET makes vacuum. Any time you have air being sucked into a cavity, there is a vacuum. ANY ENGINE at idle, BEFORE it makes boost, creates a vacuum. So, when I hear about an engine surging at idle, or at start up, its a VACUUM LEAK. My SDL was doing the same thing, AT IDLE because the gasket between the two piece intake manifold WAS MISSING. I replaced it, and NO MORE SURGE AT IDLE.




Diesels have vacuum pumps because UNDER BOOST, they do not make sufficient vacuum to run the items that require it, such as power brakes, locks, etc.




Kindly remove your head from your hindparts and realize YOU don't know a damn thing.





BTW, the king already knew that.

Goatman

The one thing I've learned on this forum is:


The king knows more than most of you, and he doesn't know sh*t.

Goatman

That's funny, not one "expert" standing up to "correct" me now? Gee, I wonder why????

Goatman

As of yesterday's fill up, $1.60 for HHO. Diesel holding steady at $2.25.

fixbenz

you had a air intake leak, on 210 diesels, the pse also creates vacuum for the engine at initial start up, compression is so high on a diesel that nothing on the car can be used by it. the locking system has a pse unit for the vacuum locks, not from the engine. on idle the vacuum pump on the engine supplies vacuum for the intake flaps, brakes etc.

an engine is nothing but an air pump, im not going to be like goat dude and be a smart alec. I know where my head is anyway. dont be arrogant and act like you know everything, because nobody does.

i really could care less about who says what on here. enough already...grow up

240D 3.0T

100% incorrect. G@ssers make vacuum because they have a THROTTLE obstructing the inlet. Diesels do not have a throttle so the only vacuum created is from pumping losses, which ads up to a barely measurable figure.

Diesels have a vacuum pump because they don't make vacuum, period.

Please, keep telling yourself that in them mirror and one day you may actually have something useful to contribute to the forum.

So you are calling yourself "king" now AND talking about yourself in the third person? Scary.

They have better things to do than play with trolls like yourself that are incapable of learning anything.

Goatman

Yawn.


How many times can the king make an *** of himself before he gets embarassed.... I guess if you have no pride, you can't feel the opposite, huh?

Goatman

I guess that excludes you.

joe b

Fixbenz, you're right, this is the first diesel I have owned. I have however driven my dad's diesels for years and have never had issues like I am having. As far as offending you about finding a good mechanic, well, I apolgize if I have offended you, that was not my intent and yes, after spending over $6,000 on my car, I have every right to be upset. I take my car to Central Automotive and they do a very good job. The mechanic there is well versed with diesels and he is just as perplexed as I. I have taken it to diesel specialist in Indianapolis, Louisville, and Atlanta, none of whom have been able to fix my issue. I have examined the wiring, timing, fuel timing, replaced all the intake valves, injectors, fuel filters, but the problem still exists.
The surging, just so y'all know, occurs upon acceleration frorm stop, I step on the gas slightly and the car lurches forward violently sometimes red lining the rpm's. I don't know what causes it, but Fixbenz, if you are so well versed, you are welcome to give it a shot, of course, being the expert diesel mechanic, you would not charge me if you could not find anything wrong, but if you think you can resolve my mechanical issues, have at it. An yes, if you'd like to buy the car, go ahead, I feel as if I work just to keep the car running and that is not what one should have to do just to drive.
So after all has been replaced, there is one small problem I have discovered so let me run this one by any of you.

There is a valve on top of the crossover tube on the left side of the engine that operates like a bellow, constantly moving. The valve holds pressure above 300psi, but around 100psi, it leaks and loses pressure. Could this be the issue? The car sputters from a little over 2,000rmp up to around 3,200 rmp, almost as if it is not getting fuel. I have driven with the mechanic in the car and the computer hooked up, but nothing showed, no codes, no irregularities. There were some smal puffs of white smoke coming out the tail pipe, I could not tell until the idiot behind be began to tailgate me and I could see the puffs aginst the dark paint of his car.
Another point, when the car gets low on fuel, just as the gas light goes on, I seem to lose power going up hills, maybe it is low fuel, but who knows, could be debris in the intake nozzle that does not affect the flow all the time.