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Old 05-30-2000, 03:25 PM
Leon Hernandez
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OK gang after a weekend of grandma NOT having wheels to get the grand kids (you young guys would'nt understand the heat we take! ) I disconnected the fuel lines, cranked her over a voila' NO fuel! So, is it an injector or fuel pump? ALso How hard is it to replace the fuel pump? Injector is out of my league, I'd get my MB tech to replace it. I'm under a time pressure due to this was to had been the dependable family car!
Again thanks for your expertise and patience. Leon
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Old 05-30-2000, 10:28 PM
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Join Date: Mar 1999
Location: Suwanee, GA, USA
Posts: 4,712
How do you know that fuel is getting to the pump and that it is not something simple? I saw once where a tech over adjusted the bolts for the side cover on the pump to stop an oil leak. This stuck the rack in the off position and....guess what? No crank. Take to good old timer independant and spend the money for diagnosis. This will be money will spent.

------------------
Benzmac:
Donnie Drummonds
1992 500E (very soon I hope
1981 280GE SWB
ASE CERTIFIED MASTER AUTO TECHNICIAN
SERVICE MANAGER FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM
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  #3  
Old 05-31-2000, 01:55 AM
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Join Date: Apr 2000
Posts: 166
Leon,

While Benzmac's advice is, as usual, excellent, it might help you understand the problem better if you will give a little bit of additional information.

It isn't clear, to me, at least, just where you disconnected the fuel line(S?). Since you used the plural, did you disconnect the metal lines between the injection pump and the injectors? About the only other place you could have disconnected the fuel line is at the prefilter going into the injection pump, or at least, somewhere along that line. This would allow you to determine if fuel is reaching the engine compartment from the tank. In neither case could you make a determination that an injector might be bad.

BTW, have you by any chance recently changed the main fuel filter? If so, has the engine been started since the replacement?

As to how hard is it to replace the injection pump, believe me, it is harder on the pocket book than to actually do. However, if you feel that replacing an injector is beyond you, you certainly don't want to become involved in trying to replace the injection pump.

Hope you get your car on the road soon.


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Ted
1979 240D
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