2004 Chevy Silverado Problem (Code posted)

Hi Guys, well I'm into a little bad luck streak.  I've had this new truck for a week now and today the "engine" light came on.  I've had it for a little over 231 miles....
WHERE do I start looking?  I don't have an OBD II gizmo.
Any owners or salesmen in WI on here?  I wonder if I have ANY warranty at all??
What normally goes wrong with these at 150,000 miles?  Runs good with just a little miss.  Has a LITTLE hole in the exhaust pipe.  Other than that, no other info out of me.  I didn't get ANY records of maintenance when I bought it, nothing!!
Which is better, Haynes or Chilton manuals?  I guess I'll have to go out and buy one.
You guys scratch your heads, while I pray....
Thanks!

I'll add the code at the end.............................


Edited by Ted J - 02 Apr 2018 at 5:13pm

Get a good code reader and use Google to find information on your problem. The information in Chilton and Haynes manuals are too general to give you any good repair procedures. Like Dave says - check your gas cap. It could also be the fuel filter restricting flow or the fuel pump going bad.

Ted, buy a FORD you should have knowing better. poke

HF has the OBDII code readers, from about $30 up...  Likely an oxygen sensor, or EGR valve. Get the code number offa the reader, and post it here, or google the code # and the model, and google will tell you...

OH,,and another thing, Ted,,,when you get tired of lookin at thet dang light,,,just disconnect the battery, let it set for bout 3 minutes,,re-connect and the light is gone,,,and ,,,may not come back on more times than not,,,,!!!
That'll be $34.33 please,,,,

04 I'm assuming it's a 5.3 in a 1/2 ton?
You mentioned a slight miss.....when does it do this?
You gotta get the code read to zero in on what pissed it off to turn the light on.
150k could be anything.
Relax...if it runs OK and not hammering it's not going to implode on you.

when you go to the Auto Store and get the code read, get the NUMBER such as P0304.. DONT RELY ON THEIR ANSWER... Get the actual CODE and report back.

fixer1958 wrote: 04 I'm assuming it's a 5.3 in a 1/2 ton? You mentioned a slight miss.....when does it do this?

No, it's the V6, the 4300.  The slight miss is when it's sitting idling cold.  Once it warms up, it's gone.
I've never had problems with Kwi-Trip fuel, but there's always a first time.

Steve, I'll get the actual code.......I hope.

lite was always on, on my o4... Used to have to fiddle with the fuel fill to get it inspected. also keep an eye on the frame under the passenger side door...likes to crack on the round cross member... 

steve(ill) wrote: when you go to the Auto Store and get the code read, get the NUMBER such as P0304.. DONT RELY ON THEIR ANSWER... Get the actual CODE and report back.

Yeah,,10-4 on this one,,,,,,At O'Reillys,,there is a dude that thinks he is kin to all the best mechanics in the world cause he likes to do the diagnosis and offer HIS suggestions for repairs,,,never mind that he has NOT been correct,,,yet,,!! I' usually insist that he just give me a print-out of the codes the vehicle is throwin,, fact is,,,the reader they have will even tell you the "most likely" cause(S) by percentage of the stored code(S).
Just recently,,I was havin issues with the 2000 F150 havin a miss that would come and go and he told me there were 4 codes stored and his interpretation was WAY, WAY off and he had me changing dang near all the sensors,,,til I went back a second time and caught a different guy and he tells me the reader is sayin #3 spark plug has a misfire,,,,? I always figured when a plug goes bad,,it goes bad for good,,,,but I pulled it and,,,,,the whole tip of the plug was completely gone,!! Don't know how thet plug was even firing but it runs like a new one now.

Could be numerous things as suggested, sadly no other way to diagnose except getting the codes, and of course that can often be it's own rabbit hole.

They both came up with the same code, P0446.  SO it looks like I need to install a new 'Canister Purge Valve'.
Now all I gotta do is FIND where it's at.  LOL

Thanks fixer, I'll do that as soon as it warms up a little here.
We're scheduled for 6 to 10" of snow by Wednesday morning and the temp isn't supposed to get up into the 40s till Friday.
Welcome to global warming.....

Thanks Dave, but that video is for a 2007 and UP gm.  Mines a 2004.  Then,,,,,,,,,,,,,,,,,,we get about 10" of that 'pretty' stuff and there is NO way I'm climbing UNDER that truck till.....well,,,,,,,,,spring is SUPPOSED to be around the corner.....