ECT reference voltage too high

Tiny
JOHN RUCKER
  • MEMBER
  • 1997 FORD F-150
  • 4.6L
  • V8
  • 2WD
  • AUTOMATIC
  • 224,786 MILES
The truck runs fine. My temperature gauge work until it reaches operation temperature then all gauges peck out.
Monday, November 4th, 2019 AT 7:50 AM

1 Reply

Tiny
BMDOUBLE
  • MECHANIC
  • 1,139 POSTS
The oil pressure sending unit, coolant temperature sensor, and gauges ground through ground G201 at the driver side lower dash behind the cowl panel. I would strongly suggest you check this first because I have had issues with rust forming behind this ground. It will be held on with an 8mm bolt. I've attached a picture of the location.
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Monday, November 4th, 2019 AT 10:02 AM

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