Question about 1990 Mercedes-Benz 300 Diesel

1 Answer

Engine will not shut off when turning off ignition switch

I have to turn off the engine manually by raising the hood and pushing down the lever marked "STOP" until the engine stops running. The engine rpm's do lower when placing the ignition switch in the off position, but not quite enough to kill the engine. Could this be caused by a faulty vacume line or something like that? The engine starts and runs great, all of the accessories work fine including the alarm system, so I dont want to go and start replacing parts which are fine and having a high repair bill with parts not needed. Any suggestions?

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 74 Answers

This particular problem is referred to as "Dieseling" actually. Older carbureted vehicles do it quite often. Usually it is caused from the vehicle actually receiving too much fuel and running rich enough to keep the vehicle operating after the ignition is shut off. On a diesel motor, there are actually no spark plugs, the mere compression of the cylinder causes the igniting of the fuel. So my guess would be is that the motor is running rich, for whatever reason. I honestly doubt it is a vacuum leak, however I wouldn't rule out that possibility completely

Posted on Aug 07, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Tappet clearance for 2004 honda civic vtis


2.0L only. 7 engines listed in fsm
intake= 0.0012-
exhaust= 0.0022- all below 100F.

but>>. that was just a wild guess on engine.......

no engine stated, Gen7 Civic non Hybrid?
no country stated, diffr, countries get diffr engines....!
in USA open hood, now look up, under hood see EPA sticker and Engine type stated.
lots and lots of engines, in 2004 they introduced the K- series
i-VTEC? S or SI>?
DOHC engine
here they all are. K20A" but which one? A1? Z3? what>?
http://en.wikipedia.org/wiki/Honda_K_engine


ok now ill pretend the car is USA, car.
i log in to alldata.com
i look and it has listing for 2.0L
and here is the text

  1. Before servicing the vehicle, refer to the precautions in the beginning of this section. Disconnect the negative battery cable.
  2. Note the radio security code and the radio presets.
  3. that means record them now. pen to paper.
  4. Remove the cylinder head cover retaining bolts. Remove the cylinder head cover from the engine.
  5. Set the number one piston at TDC. The punch mark on the variable timing control (VTC) actuator and the punch mark on the exhaust camshaft sprocket should be at the top. Align the TDC marks on the VTC actuator and exhaust camshaft sprocket.
  6. Using the proper gauge feeler gauge, adjust the valves on cylinder number one.
  7. Rotate the crankshaft 180 degrees. Using the proper gauge feeler gauge, adjust the valves on cylinder number three.
  8. Rotate the crankshaft 180 degrees. Using the proper gauge feeler gauge, adjust the valves on cylinder number four.
  9. Rotate the crankshaft 180 degrees. Using the proper gauge feeler gauge, adjust the valves on cylinder number two.
  10. Install the cylinder head cover.
  11. As required, on 2001-05 vehicles, reprogram the ECM engine idle characteristics. Be sure all electrical items are OFF.
  12. Start the engine. Hold the idle speed at 3000 RPM's in neutral until the radiator fan comes on or the temperature reached 194 degrees.
  13. Let the engine idle for about five minutes with the throttle fully closed.
  14. If the radiator fan comes on during the five minutes, do not count this toward the five minute programming time.
  15. Set the clock.
  16. As required, reprogram the power window control unit as follows.
  17. Turn the ignition switch ON. Lower the window, all the way down. Open the driver's side door.
  18. Turn the ignition switch OFF. Push and hold the drivers window DOWN switch. Turn the ignition switch ON. Release the driver's window DOWN switch. This must be done within five seconds.
  19. Repeat the above step three more times. Wait one second.
  20. Confirm that the AUTO UP and AUTO DOWN do not work. If they work repeat the procedure, paying close attention to the five second time limit
  21. Move the driver's window all the way down by holding the drivers window DOWN switch to the AUTO DOWN position.
  22. Pull up and hold the driver's window UP switch to the AUTO UP position until the window reaches the fully closed position. Hold the switch for one second.
  23. Confirm that the power window master switch has been reset by using the driver's window AUTO UP and DOWN function.
  24. If the AUTO UP and DOWN feature is still not working, repeat the complete procedure, paying close attention to the five second time limit.








Dec 30, 2013 | 2004 Honda Civic

1 Answer

My 84 300 turbo d won't shut off when I turn off the key. I have to open hood & hit engine stop lever.


You have a vacuum leak. If you open the hood and look on top of the engine, there is a lever one the right side (looking at the front of the car) with a red "Stop" decal on it. Push the lever and the engine will stop. Look for any small plastic vacuum tubing that may have come disconnected. If you dont find any, it may be a line inside the car. For temporary relief, you can pull the rubber junction from the vacuum tube that goes through the firewall to the inside of the car and cap it. If the engine now shuts off with the key, that does mean your leak is inside the car (4 door locks and trunk release are all vacuum operated and have tubes going to them).

Dec 11, 2013 | 1984 Mercedes-Benz Mercedes Benz 300 Class

1 Answer

How to fix the shift cable





  1. Position the steering column transmission shift lever to PARK (P).
  2. Apply the parking brake.
  3. Raise the vehicle. Refer to Vehicle Lifting.




  1. Position the transmission range select lever to PARK (P). Rotate the range select lever clockwise until it reaches the full mechanical stop position.




  1. Slide the black retaining clip forward on the range select lever cable end. This will allow the white lock button to be pushed out.




  1. Push the white lock button on the range select lever cable end out. This will free the metal core adjust body which is inside the cable end. Do not push the white lock button completely out.
  2. Inspect the metal core adjust body on the cable end for dirt or debris that may restrict the travel. Remove any debris by washing the cable end, the metal core adjust body, and the white lock button with soap and water. If the travel of the metal core adjust body remains restricted after the cleaning, replace the cable assembly.
  3. Lower the vehicle.
  4. Ensure that the parking brake is applied.
  5. Turn ON the ignition switch.




  1. Move the transmission shift lever from PARK (P) to 1 and back to PARK (P) ten times.




  1. Place the steering column transmission shift lever in the Park (P) position.
  2. Turn the ignition switch to the OFF position.
  3. Raise the vehicle. Refer to Vehicle Lifting.




  1. Position the transmission range select lever to PARK (P). Rotate the range select lever clockwise until it reaches the mechanical stop position.




  1. Push in the white lock button in order to secure the core adjuster body inside the range select lever cable end.




  1. Slide the black retainer clip rearward over the cable end until it covers the white lock button. Lock the clip over the cable end.
  2. Lower the vehicle.
  3. Turn ON the ignition switch.
  4. Ensure that all the transmission shift light positions (P. R. N. D, 3, 2, 1) engaged and illuminate. If you cannot perform this task, repeat the cable adjustment procedures.
  5. Ensure that the engine starts in PARK (P) and in NEUTRAL (N) positions only. If the engine does not start in PARK (P) and in NEUTRAL (N), the Park/Neutral Position Switch may need adjustment.
  6. Turn the ignition switch to LOCK.
  7. Ensure that the ignition key can only be removed with the transmission shift lever in the PARK (P) position.
  8. Start the engine and check the vehicle transmission shifting. The range select lever cable is properly adjusted if the steering column shift light positions are the same as the transmission engagements.

Dec 03, 2012 | 1999 GMC Yukon Denali

2 Answers

I have a 99 ford expedition and my fuel pump stop pumping Trying to find the fuel pump fuse do not have owners manuel Where is the fuel pump fuse


Here is the manual
FUEL PUMP SHUT-OFF SWITCH After a collision, if the engine cranks but does not start, the fuel pump shut-off switch may have been activated. The "Fuel Reset" indicator light will illuminate in the instrument cluster. The shut-off switch is a device intended to stop the electric fuel pump when your vehicle has been involved in a substantial jolt. 1. Turn the ignition to the OFF position. 2. Check the fuel system for leaks. 3. If no fuel leak is apparent, reset the fuel pump shut-off switch by pushing in the reset button. 4. Turn the ignition to the ON position. Pause for a few seconds and return the key to the OFF position. 5. Make a further check for leaks in the fuel system.
The fuel pump shut-off switch is located in the passenger's foot well, behind the kick panel.

Mar 08, 2011 | 1999 Ford Expedition

1 Answer

Can you tell me where the emergency shut off switch is on the 05 ford fusion 1.4 petrol please? had a small tip last night and the engine wont fire.


Its in your owner manual, or go to motorcraft.com, pro center, tech info, owner manual and look it up.

FUEL PUMP SHUT-OFF SWITCH

This device stops the electric fuel pump from sending fuel to the engine

when your vehicle has had a substantial jolt.

After an accident, if the engine cranks but does not start, this switch

may have been activated.


The fuel pump shut-off switch is

located in the front passenger

footwell area in the right upper

corner.


To reset the switch:

1. Turn the ignition to 1 (LOCK).

2. Check the fuel system for leaks.

3. If no leaks are apparent, reset the

switch by pushing in on the reset

button.

4. Turn the ignition to 3 (RUN).

5. Wait a few seconds and return

the key to 1 (LOCK).

6. Make another check for leaks.
2006 Fusion

Dec 27, 2010 | 2005 Ford Fusion

2 Answers

My 2001 Impala ignition won't turn when I insert the key. How do I replace the tumbler?




  • Open the hood and disconnect the negative battery cable with an adjustable wrench. Wait a few minutes before starting work to allow any current to dissipate. Set the parking brake.
  • 2 Tilt the steering wheel down to the lowest position. Move the gear shift lever to first gear. Leave the key in the ignition. Remove the lower under dash panel plastic clips and screws with a screwdriver. Lift the lower panel upward and remove the upper clips. Disconnect any electrical connections and remove the lower trim panel from the work area. Move the gear shift lever to the Park position and turn the key off.
  • 3 Remove the bolts from the knee bolster plate with a socket wrench and remove the plate from the work area. Remove the two ignition switch bolts using a socket wrench. Disconnect the electrical connector and remove the ignition switch.
  • 4 Install the new ignition switch using the retaining bolts and tighten with a socket wrench. Connect the electrical connector. Install the knee bolster plate and bolts using a socket wrench. Turn the ignition on and move the gear lever to first gear.
  • 5 Connect any electrical connections to the lower trim panel. Install the lower trim panel using the upper clips. Install the bottom screws with a screwdriver and insert the plastic clips. Shift the gear lever into Park and return the steering wheel to its normal operating position. Connect the negative battery cable with an adjustable wrench and close the hood. Release the parking brake. Start the engine to make sure the new ignition switch is operating properly.




  • Dec 04, 2010 | 2003 Chevrolet Impala

    3 Answers

    1995 Ford Thunderbird - Engine won't turn off


    Pull the 60amp fuse in the fuse box near the battery. You'll find it. That will shut off the motor. Remove the neg ground on the battery to shut off the rest of the car and save the battery,
    It sounds like the ignition lock actuator. It goes from the ignition key switch to the Yellowish ignition switch box, under the dash on the column. It pushes the ignition switch to start and pulls it back to stop and lock. If you remove the 2 hex screws on the yellowish ignition switch and let it hang down, you will see a rod sticking out of the top. It's a slider. Push the slider toward the engine and it starts. Toward the drivers seat, and it shuts off the car. Check this out.
    http://en.allexperts.com/q/Steering-Column-Repair-2047/2009/7/95-Thunderbird-1.htm

    Jul 27, 2010 | 1995 Ford Thunderbird

    1 Answer

    How do I reset the timing on a 1994 ford ranger?


    Distributorless Ignition is not adjustable However the Distributor Ignition System is
    1 Place Transmission in Park on Manual (Neutral and set Park Brake
    2 Ensure all accessories are off AC ,Heater, Radio, ETC...
    3Connect an inductive timming light and Tach to the Engine according to manufactures instructions
    4 disconnect the single wire inline spout connector or the shorting bar from the double wire spout connector( should be located near hood hinge on fenderwell drivers side small Gray plug with pc of Tape around it ) or near distributor
    5 using a pc of yellow chalk laying flat onto the Crankshaft harmonic balancer and marking the entire timing marks area this will make it easier to see the correct timing marks
    6 Start engine and bring to normal operating temp.
    7 Check Idle speed and adjust if needed this should be non adjustable on your vehicle
    8 Check initial timing by aiming the timing light at the marks and pointer.see emissions label under hood for exact timing Specs.
    9 if the marks don't line up shut down engine
    10 loosen the hold-down bolt on the distributor base but not so much that the distributor turns when assistant restarts the engine
    11 restart engine
    12 have assistant aim timing light at marks and pointer
    13 while holding the distributor Base Shaft with the proper sized wrench at the base or insulated channelocks loosen the hold down bolt and advance or ****** the distributor until the correct timing marks line up.hold in that position while assistant shuts engine off
    (NOTE) when retightening the distributor bolt it can have the tendancy to turn the distributor
    14 retighten the distributor bolt while holding the shaft firmly to prevent spinning
    15have assistant restart engine
    16 Verify that the timing marks still line up with pointer if non alignment , readjust using steps 9 thru14 again
    17 once it is set correctly and bolt is tight on distributor base shut down engine. Reconnect in-line Spout Connector or reinstall inline spout shorting bar and assure that timing is advancing beyond initial settings by starting the engine and aiming at the timing marks when engine is slightly reved the timing should advance slightly 2-4 degrees maybe more depending on mileage
    18 if timing can't be achieved because distriburor was removed you must
    1 unhook coil wire
    2 remove the #1 Sparkplug verify that the #1 piston is at the top of the compression stroke (must be on top compression stroke) if it isnt have assistant crank engine slightly to get close with coil wire unplugged. DO NOT turn the crankshaft backwards at any time to get piston into position 3 once piston is in position remove the battery cables, remove the distributor cap with wires intact and verify that the rotor cap is at center of the #1 point in the distributor cap if it isn't
    4 loosen & remove the distributor bolt
    5 lift the distributor only slightly enough to disengage the gear on the shaft from the camshaft gear (NOTE) when letting it back down into the engine it will spin the rotor off of the #1 position so it must be turned far enough to compensate for this turning when it is reinstalled
    6 seat the distributor shaft in the hole and reinstall the retainer bolt and tighten then use the steps above to fine tune the timing

    Feb 19, 2010 | 1994 Ford Ranger Supercab

    1 Answer

    Ignition swith short. computer has shut down.


    Can you please explain more indetail about your concern.
    Did you mean to say " ignition SWITCH shorted, computer has shut down ?
    Please check thr following, check your fuses and make sure they are all good, there are also fusues under your hood in a black plastic case marked " FUSES"
    There you will find fuses and relays.
    I quess my biggest question is why did the system short out ?
    Please relay back to me what you have found, on your 2006 Chevy trailblazer, with which engine ?

    Feb 06, 2010 | 2006 Chevrolet Trailblazer

    1 Answer

    Car wont shut off


    Sounds like a bad ignition switch....Thats where i would start...

    Sep 14, 2008 | 2000 Dodge Neon

    Not finding what you are looking for?
    1990 Mercedes-Benz 300 Diesel Logo

    249 people viewed this question

    Ask a Question

    Usually answered in minutes!

    Top Mercedes-Benz Experts

    Colin Stickland
    Colin Stickland

    Level 3 Expert

    21949 Answers

    yadayada
    yadayada

    Level 3 Expert

    60792 Answers

    Michael Contreras
    Michael Contreras

    Level 2 Expert

    164 Answers

    Are you a Mercedes-Benz Expert? Answer questions, earn points and help others

    Answer questions

    Manuals & User Guides

    Loading...