Mercedes Benz 1973 280SE 4.5 - PeachParts Mercedes-Benz Forum

goodguy2 · #1 04-16-2012, 04:48 PM

I have a problem of engine stalling when I make a right hand turn. It is as if you turn the ignition key off, so I think it electrical. You have to put it back into park and it starts right up, no hesitation. You drive off and make a left hand turn and there's no problems. I think there was an article about this problem associated with the neutral switch on the transmission? Any ideas.

I do have a problem with the fuel gauge and I need a new fuel quantity sending unit. I filled the tank and I still have the stalling when I make a right turn.

Phoenix, Az.

Tomguy · #2 04-16-2012, 05:52 PM

It could be a gummed/gunked up tank and strainer, causing lack of fuel on right turns. It isn't the neutral safety switch as that is only responsible for the starting of the car. Once it's running, the NSS can be unplugged and the car wouldn't be affected.

The EFI brain box is on the right side of the engine bay. If you pop open the hood it's to the "Left" of the radiator (as viewed from the front back). Is the ECU loose? Is the board it's attached to loose? This is where the relay for the fuel pump is housed too, I guess it's possible you have such a weak relay that the G-Force causes it to kick out? I am just shooting at random here without much to go on. Internet diagnostics aren't easy!

goodguy2 · #3 04-16-2012, 11:46 PM

This might have something to do with it. I drove to my mechanics shop had the coolant replaced and transmission serviced. When I drove home I was almost out of fuel. Got of the interstate and barely made it to a gas station. I had no problems driving home. It started shortly there after. I drive the car about 5 miles every other day. The gas tank did cross my mind. If that's the case, what should I do first?

Palolo · #4 04-17-2012, 01:07 AM

If you are not moving, and crank the steering wheel over to the right, does the car stall?

I would try to replicate the stalling with the car not moving to eliminate "G" related issues.

It could be a pinched wire, or loose ground, disconnecting the ignition or fuel pump, too. Working the steering from left to right would help you isolate it. If it comes back to life as soon as you ease up on the steering, you could the have someone work the wheel for you as you look for interference or something.

Good luck, and please ignore the following smiley face... My 4 year old son is looking over my shoulder and asking me to use a few of them. He doesn't grasp the concept of smiley and relevant content. LOL