Question about 1991 Mercedes-Benz 420

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My fuel gauge, speedometer and other gauges have stopped working on my 1991 420 sel; is it a fuse problem? if so, which fuse? the owners manual doesnt list them

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

husni_g2002
  • 112 Answers

SOURCE: Fuel, temperature gauges not working

check instrument voltage stabilizer.

Posted on Jan 19, 2009

  • 27 Answers

SOURCE: Speedometer/ Fuel Gauge & Tachometer not working

check for loose connection at the instrument cluster.

Posted on Jun 29, 2008

chiquititas
  • 1010 Answers

SOURCE: fuel gauge stop working

Most likely your problem is the fuel sending unit in the fuel tank mounted with the fuel pump assy. The symptoms might let the gauge sit on or work intermittently then is goes to empty. DON'T let the dealer tell you its only replacable by changing the whole fuel assy.(400.00). This is not true. Look up your vehicle on the AC Delco web site at the top of the page click the link for part look up, it will ask you the year, style, eng size, etc. then you look at fuel , the part is actually called TBI Fuel Meter. If your truck is a 5.7 your part is #17113274 (around $100.00). This is a actual GM part number, some are the AC Delco part number that may have 2 letters and 4 digits, the dealer can cross reference it or order the AC Delco part. This kit comes with a new wiring harness, and instructions. Having said this the other symptom you may have is the gauge goes past full, this is because of a bad ground, most likely around fuel tank. I have replaced approx 6 of these sensors in GM vehicles( 2 of the same year and make as yours) in the last year, its cheap design lets it fail easily.

Posted on Jul 02, 2008

  • 1 Answer

SOURCE: speedometer, gas gauge, odometer, rpm gauge not working

My gas guage, speed odometer and tempiture does not work
The speed odometre is reading 9999999 what should i do

Posted on Oct 21, 2009

  • 563 Answers

SOURCE: fuel gauge and speedometer not working

Check the speedo cable. It runs from the transmission to the driver-side firewall. Check the fuse-box for the fuel-gauge fuse.

Posted on Oct 30, 2009

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