I have a 1982 240d, and whenever I come to a stop the car shakes alot. Once I get going agin, it gets very smooth agin. I think it is because the idle adjustment is not ajusted right. How Should I ajust it? If that is not the problem, what is the problem and how should I fix it? Thanks.
2007-01-15 09:23:08 · 11 answers · asked by ///// 2 in Cars & Transportation ➔ Car Makes ➔ Mercedes-Benz
The 1982 240D that you own, requires regular maintanence every 15,000 miles. Valve clearance adjustments are crucial on Diesel engines,.Fuel filters and the air filter are also important for proper engine performance.The fuel injectors commonly need to be flushed/cleaned every 30,000 miles,sometimes even replaced ,if "spray-patterns" are not proper.Injection pump timing is to be checked,but is rarely the fault. The fuel tank has a filter/screen,which sometimes resricts fuel to the injection pump. A engine compression test should also be done when performing milege service maintenence.Worn or damaged engine parts could also be the source of the problem. A reputable mercedes tech. can help you get rid of "The shaky-idle". Good luck!
2007-01-22 11:47:05 · answer #1 · answered by Hank 4 · 0⤊ 0⤋
Same problem that happened to my car....try checking the fuel injector nozzle one by one by gradually loosening it...you will notice that the engine will shake a lot more than the normal shaking during the idle,this means that the nozzle that you have loosened is funtioning well,try the other following nozzles and if you loosened it and the idle of the engine is not affected and still shaky like what it is before when you haven't loosen any of the injection nozzle then therefore the injection nozzle that you have loosened has a very low pressure and needs to be cleaned and calibrated...try these procedure one nozzle at a time...also check the coupling of the injection nozzle (that has low pressure) connected to the injection pump and spray it with a high pressure air to get rid of some dirty clogs in the line that causes the nozzle to malfunction...hope this one helps!!! Ive already done it to my MB 100D 2.9 Diesel of which is a model of 1996 but the engines design is i guest patterned from 1980's daimler Benz..and believed me it improved and the shaking idle gets lost,it is now very smooth.
2007-01-19 14:10:08 · answer #2 · answered by yahool 1 · 0⤊ 0⤋
First thing I would do is change the air filter, primary fuel filter, and secondary fuel filter. This should always be your first move with a Merc Diesel.
Carefully examine all your fuel lines for small cracks. Any air getting into your fuel line will mess up your idle. As a matter of principle, I would change the injector return lines (the ones that are nylon covered), including the special sealed line on the end.
Do a valve adjustment. It is critical that this be done regularly on older Merc Diesels. You will need a set of special wrenches and a good set of feeler gauges for this.
Check your start of injection timing. This requires a special tool. If it's off by more than 2 degrees, replace your timing chain.
Next, hunt up a couple of cans of Diesel Purge (made by LubroMoly), and use it according to directions:
http://www.dieselgiant.com/injectorcleaning.htm
If you are still having a problem, check out your ALDA, which is a device that adjusts fueling for altitude:
http://www.dieselgiant.com/mercedesaldaboostsystemservi.htm
http://articles.mbz.org/engine/diesel/alda/
Only when you have done all of this should you attempt to adjust idle speed.
2007-01-15 13:59:55 · answer #3 · answered by anywherebuttexas 6 · 2⤊ 1⤋
Sound like the linkage from the gas pedal to the carburetor is disconnected. Take the air filter out off the appropriate of the carburetor and have some one push on the gas pedal you will see a pair of around disks shifting. If that may not happening then you certainly've a linkage that may not linked. seem for a rod that ought to connect with a plate on the carburetor. i don't think of that it fairly is electronically controlled on 1977. there will be a spring on the plate of the carburetor. while you're uncertain what you're finding at i will take a photo of an identical set up and use some arrows to get you directed interior the properly suited direction. Coolbob
2016-10-31 04:58:54 · answer #4 · answered by dembinski 4 · 0⤊ 0⤋
Mercedes 240d
2016-10-07 08:10:57 · answer #5 · answered by ? 4 · 0⤊ 0⤋
sounds like what my Gmc jimmy is doing kuz whenever i go it go smoothes and stuff but then it starts to shake and although im stopped at a road it shakes u sure its not the transmission that is what the auto dealer said to me but hey that could be my problem with the idle adjustment thing
2007-01-15 09:28:54 · answer #6 · answered by Sean S 4 · 0⤊ 1⤋
Check each of your vacuum lines. They are relatively cheap
rubber hoses, start by replacing all of them. Shouldn't cost
you over 25.00 to do it yourself. The idles screw is usually
directly off the accelerator unit on top of the engine.
2007-01-15 09:32:45 · answer #7 · answered by Anonymous · 2⤊ 0⤋
the common problem on 240 d is vacuum leak and idle speed valve is binding
2007-01-15 09:26:35 · answer #8 · answered by LEXUSRY 5 · 1⤊ 0⤋
Have you tryed adding Lucus Fule Conditioner? works for me!
2007-01-15 16:39:36 · answer #9 · answered by Boston Mark 5 · 0⤊ 1⤋
I'm not a mechanic but if your car is fuel injected, they may need to be cleaned..also try changing your plugs..that happened to me and the plugs were the issue. A new set of wires would also be nice.
2007-01-15 09:28:42 · answer #10 · answered by worldsource19 3 · 0⤊ 5⤋