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check eng light 03 chevy trailblazer


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skydver
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skydver profile image

Dec 31, 2010, 6:27 PM

Post #1 of 8 (9298 views)
check eng light 03 chevy trailblazer Sign In

I have a 2003 chevy trailblazer with a 4.2L V6. 103517 miles. The check eng light came on. Isn't there a way to jump a couple of the post on the computer plug and count blinks of the check eng light to determine the fault code? does anyone know how to do this?


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Dec 31, 2010, 6:50 PM

Post #2 of 8 (9294 views)
Re: check eng light 03 chevy trailblazer Sign In

Nope, can't be done without a code reader but if you have an AutoZone near you, they will read them for free.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



skydver
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skydver profile image

Jan 1, 2011, 5:51 PM

Post #3 of 8 (9282 views)
Re: check eng light 03 chevy trailblazer Sign In

cool. I will be there tomorrow......Thanks and blueskies


skydver
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skydver profile image

Jan 2, 2011, 6:08 PM

Post #4 of 8 (9265 views)
Re: check eng light 03 chevy trailblazer Sign In

Okay I went to autozone and the problem is "cooling fan speed signal lost"
this means what?
do I have to replace the clutch fan?
can I install a flex fan?
what will happen if I just unplug it?
The car is running cool so I am sure the clutch is fine. The clutch is all mechanical right?
I really dont want to spend 200 + dollars right now.
what is your advice?


(This post was edited by skydver on Jan 2, 2011, 6:09 PM)


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jan 2, 2011, 6:39 PM

Post #5 of 8 (9259 views)
Re: check eng light 03 chevy trailblazer Sign In

What's the exact code number?



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



skydver
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skydver profile image

Jan 3, 2011, 6:40 AM

Post #6 of 8 (9254 views)
Re: check eng light 03 chevy trailblazer Sign In

P1481
at least that is what the reciept says under troubleshooting


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jan 3, 2011, 4:07 PM

Post #7 of 8 (9242 views)
Re: check eng light 03 chevy trailblazer Sign In

Here is the flow chart for that code number






~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



skydver
User
skydver profile image

Jan 3, 2011, 6:35 PM

Post #8 of 8 (9237 views)
Re: check eng light 03 chevy trailblazer Sign In

thanks this will be a good starting place.






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