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1992 Mercedes Benz E300 stalling, at idle, rough idle

Tiny
PEARLHICKORY
  • MEMBER
  • 1992 MERCEDES BENZ E300
  • 3.0L
  • 6 CYL
  • RWD
  • AUTOMATIC
  • 300,000 MILES
Vehicle stalls during driving and at an idle, seems like lack of fuel, won't start back up for hours.
Sunday, September 14th, 2014 AT 9:26 PM

5 Replies

Tiny
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  • MECHANIC
  • 109,772 POSTS
When it won't restart, check fuel pump pressure and check to see if there is spark to the plugs. One will be an issue. Let me know what you find.
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Monday, September 15th, 2014 AT 5:30 AM
Tiny
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I've got constant spark during turn over, run, and when it does not want to start also, I put fuel pressure gauge on top port of the injection system, 40# with key ON, 80# when turning engine over, and it won't start.
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Monday, September 15th, 2014 AT 11:47 AM
Tiny
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Do one more thing for me. When it refuses to start, try starting fluid and tell me if it starts at least for a few seconds.
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Monday, September 15th, 2014 AT 6:16 PM
Tiny
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I've tried fluid also, won't start, I'm looking at the crank sensor, gettin 900 ohms, but only 0.225 ac voltage, I already ordered new one, just in case, also testing with different meters, same voltage maybe the overload relay behind battery.
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Monday, September 15th, 2014 AT 6:43 PM
Tiny
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If it doesn't start with starting fluid, then it either isn't getting spark, there is low engine compression, or the ignition timing is wrong.
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Monday, September 15th, 2014 AT 6:44 PM

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