Question about Mercedes-Benz S-Class

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Engine shut down after 15miles then won't start for half hour

Gas filter new,fuel pump has 13volts until it shuts down, fuel pump relay under back seat is ok, after 30 min will start and run for about 2 minuets.

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  • Anonymous Feb 24, 2009

    It could be fuel pump on its way out. Had similar syptoms volts say nothing its the presure test on fuel that would confirm that. Apparrently should never let fuel below 1/4 tank as pump is cooled by the gas. Do not buy cheap after market pump as you will be doing it twice like I did.

  • candctruckin Feb 25, 2009

    i had the same problem itrs your crank position sensor i guarantee it

  • Jim Draper Jun 17, 2013

    To candctruckin: I agree that is the suspect problem. I do not understand how this happens with the delay in time almost like it just has to cool down. Is PN# 0021539228 the right part number, and will a Standard Motor Products # PC393 work? Your help is greatly appreciated.

  • Jim Draper Jun 17, 2013

    We have replaced everything in the electrical (including ECM), Fuel, and Emissions systems except the fuel pump relay, and the crankshaft sensor. We are leaning to replacing the fuel pump relay, and possibly the fuel shut off valve if it has one. Trouble: Vehicle runs and drives great until it warms up and then it just shuts off with no warning. Wait an hour and a half to two hours and then if will start and run. Then when it warms up it dies. Nothing so far has made a difference. Any suggestions?

  • Jim Draper Jun 17, 2013

    candctruckin: I agree that could well be the problem. ?Why or how?

  • Jim Draper Jun 17, 2013

    Is PN# 0021539228 the right part, and will Standard Motor Prouducts PN# PC393 work as well? Can you tell me where it is located. I have two conflicting stories. One says the it is located on the bell housing behind the oil filter (Tech says it is not) and the Tech says it appears to be on the drivers side of the bell housing. Any help?

  • Jim Draper Jun 17, 2013

    1990 Mercedes Benz 300 SE L6

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Check the ignition coil, olso what year is the car

Posted on Feb 24, 2009

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1995 trans sport van new fuel pump, won't start


If the pump continued to run after shutting off the car you fuel pump relay was probably staying latched. I would replace the relay as well based on your info. Along with the pump the fuel filter should be replaced too and fuel pressure should be checked. Make sure your ground is good also.

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1 Answer

Engine shuts down


The only way to know for sure is to hook a gauge to the rail and check the fuel pressure when it won't start.
Sitting for a few minutes and restarting is normally a sign of a relay or coil cooling off.
There should be a EEC relay that powers the dist module and ECM.
I know you said you have spark, but it could be something else
related.
Also, if you have spark at the right time and no fuel pressure, you should be able to use starting fluid to substitute.
I don't suppose you have dual tanks and the switching valve is the problem ?

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My 95 lincoln town car will be fine and then all of a sudden I can't get it to crank. I have changed the fuel pump, the fuel filter, I have sparks because I got shocked. was taught a trick of pushing...


check all your rounds on the body, behind kick panels, and in engine compartment. The relays you hear clicking are the power relay whcih turns your engine computer on. The other relay is the fuel pump relay, which is turned on by the engine computer. start there, report back.

PS. When you press the gas pedal to the floor during cranking, it shuts off the fuel supply to clear a flooded engine.

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After a half hour drive my car shuts down turns right back one ,,but will keep shutting off, feels like its not getting gas, already change the fuel filter check the fuel pump presure is fine whats next


Possibly the coil module under the coil packs gets hot and shorts out because it's on the engine, ( dumb design). I have seen that happen many of times.

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3 Answers

Engine shut down after 15miles then won't start for half hour


just went thru the same think wit a s 430 it was the crank position sensor . 60 bucks at auto zone and it took me 5min. 2 install if u need help feel free to call me 918 808 9706 chris

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1 Answer

Fuel pump relay


If this happens every time you start your truck and it shuts off the same each time, you just might have a dirty fuel filter only allowing so much gas pass through until it clogs once again. I once had a chevy van, when I would drive it, would go a few miles and engine would shut down.   I would wait 10 or 15 minutes, it would start up and allow me to drive a few more miles then shut down again.  I changed the fuel filter, It was fine after that.  

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