how do u check if gas is going to the engine - Mercedes-Benz Forum

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post #1 of 16 (permalink) Old 07-19-2004, 01:32 PM Thread Starter
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how do u check if gas is going to the engine

my car will only start when i put starter fluid in it or a little bit of gas in the carbeurator ,but when i try to start it regularly it doesnt start. im confused

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post #2 of 16 (permalink) Old 07-19-2004, 02:01 PM
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RE: how do u check if gas is going to the engine

no fuel delivery, possible fuel pump or fuse/relay
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post #3 of 16 (permalink) Old 07-19-2004, 04:25 PM
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RE: how do u check if gas is going to the engine

If you use starting fluid or gas to start your car and it continuities to run after starting the car then there may be issues with the carb and/or ignition system. Sometimes hard starting is due to vacuum leaks.
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post #4 of 16 (permalink) Old 07-19-2004, 06:10 PM
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RE: how do u check if gas is going to the engine

Maybe bad fuel filter?

The filter is located near the gas tank.
Since I have a diesel I'm not sure exacly
where.

Louis.
post #5 of 16 (permalink) Old 07-28-2004, 01:36 AM Thread Starter
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RE: how do u check if gas is going to the engine

no it turns off after burning off all of the starter fluid ,.......hmmmmmmm well i dont get it, i put some gas in the tank but the meter says its bone dry,what could be wrong,oh and the sunroof lever ,u know the thing that can go in 4 different directions,it doesnt work just like the hazard red button,.....grrrrrrrr i need some serious help plzzzz anyone

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post #6 of 16 (permalink) Old 07-28-2004, 04:51 AM
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RE: how do u check if gas is going to the engine

Disconnect the fuel line where it enters the carburetter and place it over a container, turn over the engine and fuel should pump out into the container, if it does not the fuel pump is not working.


Why have you got a carb on a 230E or is it a different car?
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post #7 of 16 (permalink) Old 07-28-2004, 08:41 PM
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RE: how do u check if gas is going to the engine

Okay, you need to do some homework on this one, but here's the areas your should check.

- Fuel Pump. Does it operate? Does it pump fuel. If you don't know how to do this, then educate yourself and do some reading.

- Fuel filter. It is clogged? If it is, buy a new one.

- Fuel Strainer (on the carb). It that clogged? If you don't know where the fuel strainer is, go find out. Can't give you all the answers, because there are literally hundreds of different carb mfg's but all have fuel strainers.

- Carb main float chamber. Does this chamber have fuel in it? It should. If it don't check the fuel strainer for soot, clogs.

- Main metering Jet/ idling jet. Is that clogged?

Okay, so if your introducing fuel (whatever) in the carb, I presume you mean the throttle body (venturi), right? After the fuel is spent, the engine dies right? Then you definitely have one of the problems or all of them above described. It is very simple to check everything up to the carb. Granted the pressure carb is a complex, yet very simple unit, if you understand, bernouli's principal. I suggest if you don't or can't overhaul the carb have a professional do it for you. And I don't mean spray carb cleaner down the throttle body either. Have them re-jet, check the float, replace the fuel strainer, in addition to checking the diagraphms.

"Been there, done that, what's next"

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post #8 of 16 (permalink) Old 07-28-2004, 09:23 PM
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RE: how do u check if gas is going to the engine

Quote:
230Terry - 7/28/2004 6:51 AM


Why have you got a carb on a 230E or is it a different car?

It would also help if we know what kind of car we’re dealing with…[?]
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post #9 of 16 (permalink) Old 07-28-2004, 09:44 PM
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RE: how do u check if gas is going to the engine

I don't really see exactly knowing what type of MB can make a difference? How about a combustion engine with a pressure carburetor? Not much else to know. Principal is the same on a toyota, or even light aircraft with combustion piston engine, with a down draft carb. Run through that check list aforementioned.
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post #10 of 16 (permalink) Old 07-29-2004, 10:35 AM
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RE: how do u check if gas is going to the engine

manual or electrical just remove the delivery pipe and crank the engine, no fuel then you have found the problem
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