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Gunvir Singh
Gunvir Singh,
Category: Mercedes
Satisfied Customers: 1648
Experience:  Master Tech at Kennesaw Auto Tech
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1997 e320 check engine light engine electronics.. feels like

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1997 e320 check engine light engine electronics.. feels like misfire at low rpm does accelerate nicely and minimizes as speed increases but still feels like a misfire.
JA: Does the light stay on, or does it blink?
Customer: stay on with words across botton check engine electronics
JA: Are you fixing your E320 yourself? What have you tried so far?
Customer: no will take it to a shop i have a verizon hum and waiting for a response. it usually tells me codes
JA: Anything else you want the mechanic to know before I connect you?
Customer: thats it. fuel is low too

Hello, let me review your request. Please stand by.

Does your rpm fluctuate when at idle or you just feel the misfire?

Customer: replied 2 months ago.
just feel misfire moderate to severe at idle
mild at higher speeds

Were you able to read the codes for the check engine light?

Customer: replied 2 months ago.
not yet
Customer: replied 2 months ago.
waiting for hum response.

Is the mifire worse when engine is cold, warmed up or does not matter?

Customer: replied 2 months ago.
does not matter

Any recent repairs done or vehicle overheated recently?

Customer: replied 2 months ago.
no contant temp right on the center line... no recent repairs.. did replace headlight assemblies

Ok. When was the last time a tune up was done?

Customer: replied 2 months ago.
it has 90000 miles... bought at 59000 miles 2 years ago... no tune up on my time.

The symptom you are experiencing can be caused by a tune up due, faulty ignition coil or vacuum leak.

Customer: replied 2 months ago.
sudden onset


Customer: replied 2 months ago.
running perfect up to misfire then immediate problem.. was not getting a little worse on way... always 24-25 mpg highway miles.

If it happened out of the blue could be a faulty coil, vacuum leak or low fuel pressure. Once you read the codes, it will give a little idea which system to check

Customer: replied 2 months ago.
ok what causes the low fuel pressure code...
Customer: replied 2 months ago.
although when i accelerate.. it does not feel like shortage of fuel feels very strong

A clogged fuel filter or a faulty fuel pump.

Customer: replied 2 months ago.
ok thanks.

You're welcome and good luck with your vehicle, And please don’t forget to rate my performance in the upper left corner otherwise i don’t get compensated. Thank you and have a blessed day.

Gunvir Singh and 6 other Mercedes Specialists are ready to help you
Customer: replied 2 months ago.
where is the fuel filter is that easy to replace

Fuel filter is located at the frame floor ahead of rear suspension in fuel pump assembly