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Steve50

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Since: Jul 08, 2004
Posts: 8



(Msg. 1) Posted: Tue Jun 28, 2005 7:56 am
Post subject: E320 Not starting
Archived from groups: alt>auto>mercedes (more info?)
I have a 96 E320 that won't start. I have been dealing with this for about
6 months now. Every once in a while, about once every 2 weeks, the engine
turns over but doesn't start. I replaced the plugs and fuel filter. I'm
thinking it may be a fuel problem, maybe a fuel pump regulator? Is this
common on this model?

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T.G. Lambach1

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Since: Dec 08, 2003
Posts: 130



(Msg. 2) Posted: Tue Jun 28, 2005 11:25 am
Post subject: Re: E320 Not starting [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
There's fuel supply and fuel pressure regulation. The fuel pressure is
regulated by the small can like regulator on the top left of the engine.
It has a hose attached and its attached to the fuel rail. With the
engine OFF pull off its rubber (vacuum) hose; if fuel drips out the
regulator is defective.

An intermittent fuel pump or fuel pump relay, more likely the latter,
would cause the problem you describe - no fuel. Eventually it will quit
while you're driving, causing a stall.

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Tiger1

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Since: Jan 07, 2004
Posts: 226



(Msg. 3) Posted: Tue Jun 28, 2005 12:55 pm
Post subject: Re: E320 Not starting [Login to view extended thread Info.]
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When you have hard or no start situation... was it when engine is cold first
thing in the morning or like 15 minutes after you parked the car?
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Steve50

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Since: Jul 08, 2004
Posts: 8



(Msg. 4) Posted: Thu Jun 30, 2005 3:33 pm
Post subject: Re: E320 Not starting [Login to view extended thread Info.]
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"Tiger" <tiger0002 DeleteThis @hotmail.com> wrote in
news:yefwe.2053$t07.1443@fe12.lga:

> When you have hard or no start situation... was it when engine is cold
> first thing in the morning or like 15 minutes after you parked the
> car?
>
>

Sometimes cold, but other times just random, when it's warm. I just had a
Mercedes mechanic hook it up, and the code was Crank Case Sensor. Never
heard of that one.
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Josh6

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Since: Dec 24, 2003
Posts: 27



(Msg. 5) Posted: Thu Jun 30, 2005 6:55 pm
Post subject: Re: E320 Not starting [Login to view extended thread Info.]
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Did they mean "crankshaft position sensor"? If that's faulty, the ignition
won't work. Or maybe crank case pressure sensor?

Now if there is a crankcase sensor what does it do? Verify that the
crankcase is still under the hood?

Josh


"Steve" <scheadley.DeleteThis@co.ha.md.us> wrote in message
news:Xns9685A83A7BE43scheadleycohamdus@216.196.97.142...
> "Tiger" <tiger0002.DeleteThis@hotmail.com> wrote in
> news:yefwe.2053$t07.1443@fe12.lga:
>
>> When you have hard or no start situation... was it when engine is cold
>> first thing in the morning or like 15 minutes after you parked the
>> car?
>>
>>
>
> Sometimes cold, but other times just random, when it's warm. I just had a
> Mercedes mechanic hook it up, and the code was Crank Case Sensor. Never
> heard of that one.
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Tiger1

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Since: Jan 07, 2004
Posts: 226



(Msg. 6) Posted: Thu Jun 30, 2005 7:11 pm
Post subject: Re: E320 Not starting [Login to view extended thread Info.]
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That makes sense... crankshaft sensor... if it doesn't detect your engine
spinning, it will keep ignition system off.
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mugong

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Since: Jul 06, 2005
Posts: 2



(Msg. 7) Posted: Wed Jul 06, 2005 7:09 pm
Post subject: Re: E320 Not starting [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
Hi, Does anyone knows exact location of fuel check valve for 1995 E-320 ? I
heard that the check valve is located near fuel pump. I am looking at the
fuel filter and fuel pumps but I can not find the valve. Please advise me.
Thanks. mugong
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mugong

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Since: Jul 06, 2005
Posts: 2



(Msg. 8) Posted: Wed Dec 28, 2005 2:08 am
Post subject: Re: E320 Not starting [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
I have 1995 MB E320.I have starting problem. If I start everyday no problem
but I start once or twice a week then I am having hard time to start. My
mechanic changed fuel filter and checked fuel pressure regulator and fuel
check valve with mouth (blow air into it),and checked fuel pump.Also he
excanged fuel relay with auxilityfan relay. Crankingis good.It seems like
not enough fuel coming thru. After I pumped accelerater, I can not smell
any gasoline.
Anybody had a similar problem? Please advise me.Thanks in advance. Mugong
P.S. What is the proper way to chech fuel check valve?
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Steve50

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Since: Jul 08, 2004
Posts: 8



(Msg. 9) Posted: Thu Jan 05, 2006 9:58 am
Post subject: Re: E320 Not starting [Login to view extended thread Info.]
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"mugong" <dogbulgeneral.RemoveThis@yahoo.com> wrote in
news:81cabd054522275ae595f880cb9952d8@localhost.talkaboutautos.com:

> I have 1995 MB E320.I have starting problem. If I start everyday no
> problem but I start once or twice a week then I am having hard time to
> start. My mechanic changed fuel filter and checked fuel pressure
> regulator and fuel check valve with mouth (blow air into it),and
> checked fuel pump.Also he excanged fuel relay with auxilityfan relay.
> Crankingis good.It seems like not enough fuel coming thru. After I
> pumped accelerater, I can not smell any gasoline.
> Anybody had a similar problem? Please advise me.Thanks in advance.
> Mugong P.S. What is the proper way to chech fuel check valve?
>
>

Changed the crankshaft positioning sensor, and it fixed it for a while.
But I'm having the same problem now. Wouldn't start this morning, not sure
what to do now.
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