[Omarreed]

TGIF
Posted yesterday about sputtering and not running even - now since I've ~worked~ on it it won't even spark.
If the fuel relay is not working would that cause it not to get fire from the spark plug? The more I work on it the worse it gets. It ran yesterday!! Read all posts over last several years concerning the same-ish problems and got lots of ideas - tried them - now no spark.

:surrender:

Steve

 

[miltiano32]

Tell us about the car history, last tune up, what was done, what plugs are you running. When did the problem start, miles on the car?

 

[Omarreed]

OK - it started all at once yesterday - bosch plugs - it's not the plugs - it's not getting fire to the plugs and before that the fuel pump stopped working. New car to me but have all the records and was always taken to mb dealer and many $ spent on it over the years prvious owner had car. Ran great for me til yesterday. Appreciate all help...

Steve

145,000 miles

 

[alia176]

So you verified that you are not getting spark to the plugs or fuel getting delivered? How did you do this? Can you hear the humm of the fuel pump(s) when key on IGN (not starting)?

 

[Omarreed]

No humming from fuel pump...

 

[Omarreed]

Picking up a fuel relay - just trying anything - getting very frustrated......

Steve

 

[Omarreed]

No juice to fuel pump, no juice to spark plugs - turns over fine - replaced fuel pump relay. Fuel pumps ARE GOOD. No juice going to them.....

Also - what are all the breakers, ie; relays behind the fuse box?

All for 1993 300E-

And again, Thank You Very Much!!!!!

Steve

 

[alia176]

Did you check the fuse in the OVP relay? Just a simple idea to cross off the list. And please, keep the list of things you've tried on each posts so that we can keep track of your attempts! It's usually something very simple and since you did a simple tune up, I bet something got disturbed or unplugged during the process.

Oh, don't forget to put the battery on the charger so that it stays fresh through all the engine cranking sessions.

 

[Omarreed]

1993 300E

OVP fuse is not blown - no fuel and no fire - Could it be a crank shaft sensor? I am keeping battery charged.

All fuses check ok - turns over fine - fuel pump not getting juice but works - bosch plugs ok just no spark to them.

Thanks!!

Steve

 

[288369]

Is the coil okay? As far as spark goes the crank sensor on the bell housing is an easy test and replace. Use your digital multimeter to check reading (resistance?) at ezl end. it should be upwards of 650 minimum to about 1100 for a new one. Mine went and it took 10 minutes to replace with a used one from a 4cyl. No fuel at pumps is odd. You sure? Whatever test you did do it again with the cap off. Are they not humming with ignition on?

 

[Jayare]

Is there an aftermarket alarm system on the car?

Sent from my DROID2 using AutoGuide.Com Free App

 

[Omarreed]

300E 93 - non starting - non sparking - tried most everything.

Where is the crank shaft sensor located and how do you get to it? Above or from under?

Thanks again!!

Steve

 

[Omarreed]

No - to the aftermarket alarm but there is aftermarket stereo system. Car does turn over - just no fire and no gas.

300E - 93

Steve