Service Engine Soon Light

Tiny
JSWANSON44
  • MEMBER
  • 1987 CHEVROLET TRUCK
  • V8
  • 4WD
  • AUTOMATIC
  • 155,000 MILES
The service engine soon light came on a while back and today we went to get inspected it did not pass.
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Tuesday, March 16th, 2010 AT 12:47 PM

6 Replies

Tiny
RASMATAZ
  • MEMBER
Hi jswanson44, Welcome to 2carpros and TY for the donation

What you need to do here is have the computer scanned for code/s this is your starting point of diagnosis and get back with the code/s we start here

Or you can do it by jumping B to A on the diagnostic link connector and read of the flashes-example DTC 12 will Flash pause Flash Flash
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Tuesday, March 16th, 2010 AT 1:00 PM
Tiny
JSWANSON44
  • MEMBER
I thought 95 and up have a scan system, how do I have this scanned or how do they hook up to my truck, can I go to like auto zone and use one of theirs?
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Tuesday, March 16th, 2010 AT 1:06 PM
Tiny
RASMATAZ
  • MEMBER
You can do it yourself jumper B to A see below


http://www.2carpros.com/forum/automotive_pictures/12900_GM_ALCL_46.jpg

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Tuesday, March 16th, 2010 AT 1:33 PM
Tiny
JSWANSON44
  • MEMBER
Ok, you said that in your first response. This helped, found out the coolant sensor was bad, all fixed now.
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Tuesday, March 16th, 2010 AT 2:25 PM
Tiny
RASMATAZ
  • MEMBER
Just trying to help you here in the event it happens again-you can do it without autozone's help. Of course they can pull the code/s for you.
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Tuesday, March 16th, 2010 AT 2:38 PM
Tiny
2CARPROS MIKE
  • ADMIN
Nice work, we are here to help, please use 2CarPros anytime.
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Tuesday, March 16th, 2010 AT 2:44 PM

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