How do I fix this? Right now I open the hood and push the red shut-off bottom on the throttle linkage system. Is there a solenoid that is hung up or a wiring path that might be corroded?
2007-03-16 07:46:02 · 6 answers · asked by Ted P 1 in Cars & Transportation ➔ Car Makes ➔ Mercedes-Benz
You have a vacuum leak: could be a hose, a switch, or the shut-off valve on the back of the fuel injection pump. If you're not familiar with these things, it's best to take it somewhere that is. Or, start at the shut-off valve and check for adequate vacuum when you turn the key left, using a vacuum gage. If that's good, start at the vacuum pump and start tracing backwards with the vacuum gage.
Hope this helps, good luck!
2007-03-16 10:13:08 · answer #1 · answered by Davey 2 · 1⤊ 0⤋
The shutoff valve on your car is operated by vacuum. Somewhere there is a vacuum leak, and you probably have other vacuum related problems that you may not have noticed yet.
The first thing to do is to figure out whether the shutoff valve is working. Locate the vacuum connection and remove it. Put a new piece of vacuum line on the valve and...don't cringe...suck on it. If the car turns off, then the valve is ok. If the car doesn't shut down, then replace the shutoff valve, which is replaceable without removing the injection pump.
Eyeball all the plastic vacuum tubes and rubber connectors. If any of them are disconnected, that's the problem. If any of the rubber connectors are cracked, that's the problem. You can get new rubber connectors from the Mercedes dealer for a buck or two apiece.
If you get this far without finding a problem, you have to track down the vacuum leak. Find the vacuum pump on the front of the motor (there will be a thick plastic hose between the vacuum pump and your brake booster, makes it easy to find. Disconnect the large black tube. Start the car, and put your finger over the fitting on the pump. If there's no vacuum, the vacuum pump is shot and should be replaced before you drive another foot. If the pump is bad, it can allow oil to poison your whole vacuum system, which will become a very expensive repair.
If you have vacuum, reconnect the main hose. Now what you need to do is to follow the lines from the vacuum pump, and check for vacuum at every branch. When you find a branch with no vacuum, you are close to the problem.
2007-03-16 10:21:25 · answer #2 · answered by anywherebuttexas 6 · 1⤊ 0⤋
i'm guessing in this yet I had a diesel(different vehicle make similar 3 hundred and sixty 5 days). contained in the engine compartment, come around the gasoline injection pump.(it extremely is the region the guy metallic strains to each cylinder meet). On that unit, there ought to opt to be some magnificent electric powered wiring. One singular wire below a small nut which, even as there is ability(12V) going to it, holds the "gasoline shrink off solenoid" OPEN which facilitates gasoline to move the engine. many times, with assistance from means of turning off the most ability does now no longer pass there any more advantageous and the solenoid closes reducing off the gasoline. Engine stops. both loosen this wire off the nut ( or shrink off the wire-yet you want to start up the motorized vehicle later so it can be reconnected) Your selection what to do. bump right into a contact metric wrench and do it acceptable or now no longer. once the wire is bumped off, the engine will end. Why now no longer disconnect the battery? because the alternator will save the means going there. situation is both contained in the shrink off solenoid or contained in the ignition change is worn. (In mine, it develop into the ignition change) enable a save experienced in diesels fix it.
2016-11-26 00:14:06 · answer #3 · answered by taguchi 4 · 0⤊ 0⤋
I agree with the others who mentioned a vacuum leak. Older Benzes have problems with the vacuum hoses and it's a good idea to replace the hoses and nylon fittings every 8 - 10 years or so. Generic replacements from Auto Zone or any parts store will do a fine job.
2007-03-17 03:25:53 · answer #4 · answered by Bostonian In MO 7 · 0⤊ 0⤋
Vacuum leak is the most common reason for this. I had the same problem with my 300TD and the leak was in one of the DOORS. These cars have vacuum power locks for the doors. If the leak is BAD in one of the bellows which are inside the door panels, it will effect not only the door locks, but it will also be the reason for engine shut down problem (the same pump creates vacuum for the doors and the engine.)
2007-03-16 11:19:16 · answer #5 · answered by Anonymous · 1⤊ 0⤋
A diesel does not need electricity to keep running. It just needs to be kept fed with fuel. On a gasoline car, when you turn off the ignition you also turn off the spark plug ignition system which shuts down the car. On a diesel, you turn off the fuel line feed. Your problem is the cutoff valve on our injector pump. Either is not working anymore or its leaking really bad. Have your injector pump service by a qualified tech.
2007-03-16 08:22:23 · answer #6 · answered by Tom C 3 · 0⤊ 0⤋