"SERVICE ENGINE SOON" light 2002 LS

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Dec 6, 2009 | 10:24 AM

rob1981

Thread Starter

Joined: Dec 2009

Posts: 1

"SERVICE ENGINE SOON" light 2002 LS

I have a 2002 LS. SErvice engine soon light remains on. oil level is good. Coolant level is good. Any thoughts?

Dec 6, 2009 | 11:01 AM

rriddle3

BF Guru

Joined: Dec 2006

Posts: 6,594

From: Fort Worth,Texas

You will have to get the codes read first. If you do not have a reader then take it to AutoZone or Advance Auto and they will read the codes for free. Get back to us with the results.

Dec 6, 2009 | 12:11 PM

Sisk

BF Veteran

Joined: May 2009

Posts: 4,772

From: Halifax, NS, Canada

Write down the codes your truck is throwing, then consult this board: https://blazerforum.com/forum/diagnostic-trouble-codes-dtcs-49/. It has a list of just about every code you're going to see, what it means and how to fix it.