1999 Chevy Blazer Check engine light. OBD code P1870

Tiny
SMOKE6574
  • MEMBER
  • 1999 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 15,300 MILES
What does code P1870 mean? Do I need a part or a new transmission?
Friday, October 15th, 2010 AT 9:48 PM

1 Reply

Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Could be several things such as faulty shift solenoid, TCC solenoid, internal tranny failure, engine misfire etc. Best bet would be having a transmission specialist shop diagnose it.
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Friday, October 15th, 2010 AT 9:50 PM

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