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  #1  
Old 11-25-2007, 06:54 AM
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Problems with my 1995 E420 (W124)

I know there are some MB Tech's are who a member on this site and a few other members who are really knowledgeable when it comes to our MB's so many some of you can help me with a current problem I have been having for a little over a week now...

Last week on Thursday (November 22nd) I was really low on gas and was driving to the gas station. Nearly 200FT away from the gas station my car starts to sputter, revs really strangely and doesn't shift into the next gear. Thank god I made it to the gas station. So, I get gas and everything is okay from there but I notice that my car doesn't quite drive the same anymore.

anyways, The next day I go out at night with a few friends and needed to get gas again (I drive a lot) and I roll up to the gas station to get gas. When I'm all done and finish my car doesn't turn over. I hear it trying to crank over to start up but it doesn't. At this point in time I wanted 15-20 minutes trying to start it and I call my friend to swing by to jump start me thinking it's the battery, but that doesn't work. After all of this - I had to resort to calling AAA and have the car towed to my house. Once he gets there I decide to check and see if the car would start again and it does - so I drive it home. Also, earlier into the night I was making a U-Turn which was pretty tight and at a pretty fast pace - 80% through the U-turn my car stalls and shuts off and all the warning lights on the guage cluster come on. I turn it off and it starts right back up. Just wanted to add that in there incase it would help.

So, it's been a week and the same thing happened to me again which happened to me last week at the gas station. Although, this time I'm not so lucky to get it started. I call a friend of mine to swing by since he drives a E500 W124 and help me out.

I was starting to think it was the EZL or the crank sensor but we swapped both of those out and swap those in since his are new and nothing works still. Then we move on to the battery and that doesn't work as well. Anyways, after a few hours of trying to get my car to work I give up and go out for the night and just have my car towed to my house tomorrow (today). So, I get to my friends house to pick up my garage opener about a hour ago and decided to see if my car starts and guess again.... it starts!

So, what the hell is wrong with my car? Why is it acting up so funny?

My question is what do you guys think the problem is? Could it be the Fuel Pump, Fuel pump relay, Fuel Filter? Earlier in the night while trying to start my car. When it would turn it over you would usually hear a hissing noise which comes from the Fuel Pump but you wouldn't hear that at all.

Could it be that I ran my car so low on gas that one day I ruined the Fuel Pumps and clogged the filters? Others are guessing its the OVP but I doubt thats the problem.

Any suggestions or advice would help out! Also, does anyone have a DIY instructions on how to replace the fuel pump and filter? Also, location and pictures of were those two are located?

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Old 11-25-2007, 08:01 AM
Larry Delor's Avatar
What, Me Worry?
 
Join Date: Jun 1999
Location: Sarasota, Fl.
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Fuel filter is located under the car, approximately where the rear passenger sits. There is a plastic cover with three plastic bolts, that needs to come off first. You will then see the metal canister...the rest ought to be straight forward. Let the car rest for a while, or better yet, do it first thing in the morning before you go anywhere - this way, you reduce the risk of getting premium sprayed on your face.

If you are lucky, that's the cause of your troubles. (and you should probably go to your house of worship and sacrifice a goat or something, for you will have gotten truly lucky)
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Old 11-25-2007, 08:10 AM
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Wiring harness ? Will cause all kinds of strange issues.
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Old 11-25-2007, 08:14 AM
Larry Delor's Avatar
What, Me Worry?
 
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Location: Sarasota, Fl.
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Shhhh, Pete, ....I didn't want to mention it, and jinx him.
Too late now...it probably just crumbled as I typed this....the insulation in the main harness, and the insulation in the ETA.
Well...at least a goat will live to see another day.
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  #5  
Old 11-25-2007, 10:17 AM
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Join Date: Aug 2003
Location: Phoenix
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Your car has no OVP relay, so that's a bad guess. Your car has a fine DIY diagnostic system. The first step should always be to read the fault codes. If it's fuel starvation of some sort you may not get a fault code but nevertheless reading the codes should be your first step.
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Old 11-25-2007, 11:36 AM
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. . and to add; check the fuel pressure regulator . . it can cause this.

But dump the DTCs and see what's stored.
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  #7  
Old 11-25-2007, 03:36 PM
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Engine Harness was checked beginning of the summer.
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  #8  
Old 11-25-2007, 04:49 PM
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If one of the fuel pumps failed, would the car just not run at all, or could it exhibit the problems he described? (I think it's the fuel filter too, but I've always wondered if the 124 V-8 could run on only one fuel pump).
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  #9  
Old 12-02-2007, 02:30 AM
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My guess at this thing, fuel filter or just bad gas. You must first get the codes as Jim suggest.

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