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mercedes-benz

i have a 1992 500 sel mercedes-benz.I have put fuel pumps,fuel filter and a fuel pressure regulater on it,I start it up let it run 25 to 30 minutes and it just shuts off. Can you give me any idea whats wrong with it.


Bwsmith, Hi how are

Bwsmith,

Hi how are you?
Remember helping you in the past.
Welcome back.
Could be a number of DIFFERENT things causing your issue.

Need more information from you before ACCURATE repair information can be posted.

Answer the questions below.

What’s the vehicle mileage?
Has the “Charging System” been checked and RULED OUT?
Have “Vacuum Leaks” been RULED OUT?
Have cylinder AND ignition “Misfires” been RULED OUT?

When the car stalls out, and you go to RE-START it, does it start up RIGHT AWAY or does it take AWHILE (and or) is it difficult to RE-START?

If it DOES take awhile to RE-START, then POST how long it takes.

GOD BLESS THE UNITED STATES MARINE CORPS!!!

mileage on car over

mileage on car over 230000.everything has been ruled out.and it takes about 30 minute to start back up sometime longer.

(You said) everything has

(You said) everything has been ruled out.

Really my friend?????
Sorry man.
You’re NOT in the ballpark.
You’re NOT even in the parking lot NEAR the ballpark.

In other words, if EVERYTHING was “Ruled Out” then WHY is the car still stalling out?

You need to ask yourself:

What’s the “Level Of Skill” of the individual who “Ruled Out Everything”?

EXACTLY WHAT TESTS were done to “Rule Out Everything”?

Were the TESTS to “Rule Out Everything” done CORRECTLY?

What “Engine Error Codes” are set?
If necessary do a scan and POST ALL the codes that are set.
Have “IAC Sensor” been “Ruled Out”?
Have “MAF Sensor” issues been “Ruled Out”?
Have “Fuel Pump Relay” issues been “Ruled Out”?
Have “Primary” AND “Secondary” ignition issues been “Ruled Out”?
Have issues with the “Fuel Evaporation System” been “Ruled Out”?

Since the vehicle mileage is OVER 230.000 miles has the “Throttle Body” EVER been removed from the engine, disassembled and cleaned?

Got MUCH MORE for you buddy.
Keep in touch.
Keep me updated.

GOD BLESS THE UNITED STATES MARINE CORPS!!!

Once the engine "shuts off"

Once the engine "shuts off" on it's own (after running for 25-30 minutes), prime the engine by pouring a small amount of gasoline (approx. 2 teaspoons) down the "throat" of the air flow sensor (you'll have to remove the air filter housing). Try starting the engine. If it starts and runs for a second or two then shuts off, then the problem is fuel related. Check fuel pressure and fuel delivery to the fuel distributor.

If the engine does not start after its been primed, check for a spark at two or more spark plug wires (while the engine being cranked over).
Let me know how this turns out and/or to get more assistance if needed.

Thanks.

Bwsmith, It’s been over a

Bwsmith,

It’s been over a month buddy.
Are you still out there?
Do you still need help?
Did you resolve your issue, and just FAIL to post back saying so?
Still NO response from you to my LAST posting.
Still MANY unanswered questions.

CANNOT take your issue to the “Next Level” till YOU ANSWER my questions.

I need to ask questions and you MUST answer them.
Reason why is SIMPLE AND OBVIOUS.
You’re there and I’m here.
Don’t have your Mercedes in front of me.
Can’t run any tests on it.

The last posting (from forum member “bfree”) is incomplete.
Don’t fault him for that.
He’s just trying to help to the best of his ability.

It’s incomplete because he mentions the “Fuel Distributor” but FAILS to tell you what it DOES and WHAT it looks like. Check out the image below.

http://www.ebay.com/sch/Fuel-Inject-Controls-Parts/33553/i.html?mvsub=1&...

FUNCTION.

Gonna keep "The Function" REALLY simple.
COULD EASILY write a novel about a "Fuel Distributor".
Just don't wanna "Melt Your Brain".

A fuel distributor is a part that measures and delivers fuel to each individual injector. The distributor can be mounted to a vehicles “Air Box”. The distributor can also be mounted, (somewhere on the vehicle) (and or) engine, so that it can measure the amount of “Ambient Air” that enters the engine. At that point (and by design) the distributor will raise or lower the amount of fuel delivered as needed (and or) adjusted accordingly.

Now that you know what the distributor does and what it looks like DON’T mess with it. You could do PERMANENT DAMAGE if you DON’T HAVE ANY “Fuel Distributor Experience”. We’ll get back to it later. RIGHT NOW you need to answer the questions that are STILL UN-ANSWERED.

GOD BLESS THE UNITED STATES MARINE CORPS!!!

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