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Low ground reading

Tiny
SCORLE
  • MEMBER
  • 2005 JEEP GRAND CHEROKEE
  • 4.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 156,000 MILES
Replaced new transmission case motor due to 4wd needs service. Came up in code for replacement. Now code says low ground reading. 4.7 and should be at 6+. Any ideas?
Friday, May 31st, 2019 AT 12:27 PM

6 Replies

Tiny
STEVE W.
  • MECHANIC
  • 13,464 POSTS
Welcome to 2CarPros. Could you post the codes you had please? It sounds like a harness issue, but I want to look at the code setting criteria and wiring. Thank you.
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Friday, May 31st, 2019 AT 12:38 PM
Tiny
SCORLE
  • MEMBER
  • 3 POSTS
C1407 before transfer case replaced.
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Saturday, June 1st, 2019 AT 2:22 PM
Tiny
STEVE W.
  • MECHANIC
  • 13,464 POSTS
Okay, it sounds like a harness issue. I would pull the harness connector and check the pins for corrosion as well as pin fitment. A bad connection would cause issues with current flow.
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Saturday, June 1st, 2019 AT 5:34 PM
Tiny
SCORLE
  • MEMBER
  • 3 POSTS
Thanks. Will do that.
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Sunday, June 2nd, 2019 AT 8:28 AM
Tiny
STEVE W.
  • MECHANIC
  • 13,464 POSTS
Let us know what you find please.
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Sunday, June 2nd, 2019 AT 5:34 PM

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