1991 Chevy S-10 Engine coolant temp sensor

Avatar
MATT4401
  • MEMBER
  • 12 POSTS
Electrical problem
1991 Chevy S-10 4 cyl Two Wheel Drive Manual

What color is the wire that actually comes out of the ecm that hooks up to the ect? I know the wire coming out of the ect is green, but need to know what color the wire is and where it is located on the connector that hooks up to the ecm. This truck has a 2.5L 4 cylinder.
Jan 5, 2009 at 12:34 PM
Avatar
RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Is this an S-10 Blazer or S-10 Truck?
Jan 5, 2009 at 12:43 PM
Avatar
MATT4401
  • MEMBER
  • 12 POSTS
It`s a truck.
Jan 5, 2009 at 12:59 PM
Avatar
RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
The color is yellow to ECT from the ECM circuit 410/C-10 and black wire for ground-see below


https://images.2carpros.com/forum/automotive_pictures/12900_cts_23.jpg

Jan 5, 2009 at 1:11 PM
Avatar
MIDAS414
  • MEMBER
  • 17 POSTS


https://images.2carpros.com/forum/automotive_pictures/295662_cts_1.jpg

Jan 5, 2009 at 1:12 PM
Avatar
MATT4401
  • MEMBER
  • 12 POSTS
Hey thanks alot. You have been a really big help.
Jan 5, 2009 at 1:55 PM
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Frequently Asked Problems for This Vehicle