2004 Chevy Silverado Problem (Code posted)
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Topic: 2004 Chevy Silverado Problem (Code posted)
Posted By: Ted J
Subject: 2004 Chevy Silverado Problem (Code posted)
Date Posted: 31 Mar 2018 at 2:44pm
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.............................
------------- "Allis-Express" 19?? WC / 1941 C / 1952 CA / 1956 WD45 / 1957 WD45 / 1958 D-17
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Replies:
Posted By: Dave in PA
Date Posted: 31 Mar 2018 at 2:47pm
Check the gas cap first!!
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Posted By: Hubert (Ga)engine7
Date Posted: 31 Mar 2018 at 4:54pm
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.
------------- Just an old country boy saved by the grace of God.
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Posted By: Pat the Plumber CIL
Date Posted: 31 Mar 2018 at 5:46pm
Go to Oriellys and get them to run the code for free
------------- You only need to know 3 things to be a plumber;Crap rolls down hill,Hot is on the left and Don't bite your fingernails
1964 D-17 SIV 3 Pt.WF,1964 D-15 Ser II 3pt.WF ,1960 D-17 SI NF,1956 WD 45 WF.
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Posted By: Kenny L.
Date Posted: 31 Mar 2018 at 6:05pm
Ted, buy a FORD you should have knowing better. poke
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Posted By: desertjoe
Date Posted: 31 Mar 2018 at 6:31pm
Hey Ted,,,10-4 what Pat said,,O'Reillys will read thet for you W/O charge. Autozone does too but I find O'Reillys machine is better quality. Have them give you a printout too. Most times those are just simple fixes.... And then get back with us,,,I'll bet ole Fixer can tell you what to do,,, Yeah,,,you is lucky ole Shameless is takin his afternoon nap,,,cause he's gonna be rarin to go on you,,,,,,,,
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Posted By: DiyDave
Date Posted: 31 Mar 2018 at 6:40pm
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...
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Posted By: Ted J
Date Posted: 31 Mar 2018 at 7:50pm
Pat, I didn't know O'Reilly's did that!! I'll have to stop on Monday.
Kenny L,,,,,,,,,,,,watch it buddy!!! I'll sick Shameless on you... He's closer to you than I am...
DJ, Yeah, I was kinda hoping ole fixer was gonna see this, but being it's Easter weekend,,,,,,,isn't that when things go bad, when you don't have the time or there's TOO much going on......BUT, that's my NORMAL luck...
THANKS GUYS!! I'll probably check out BOTH O'Reillys and AutoZone as they are only about a block apart. Can't hurt....
AND, HAPPY EASTER!!! Thank God for where we are today. Stay Well, Warm, Healthy, and SAFE in the coming year!!
------------- "Allis-Express" 19?? WC / 1941 C / 1952 CA / 1956 WD45 / 1957 WD45 / 1958 D-17
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Posted By: desertjoe
Date Posted: 01 Apr 2018 at 7:07am
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,,,,
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Posted By: Kurt WI
Date Posted: 01 Apr 2018 at 7:32am
It could be anything. All that new electric crap nowadays. Get a code reader or go to oreillys like others have said. I didn't know they did it for free either. My ford van engine light comes on every time its sub zero. It says it runs to rich. When it warms up I hook up the code reader and just reset it and it doesn't come back on til next winter when it gets cold again.
------------- WD D17D 170 190xt 190xtIII 200 7020
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Posted By: fixer1958
Date Posted: 01 Apr 2018 at 8:02am
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.
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Posted By: Thad in AR.
Date Posted: 01 Apr 2018 at 8:25am
Get used to them lights Ted. Mine has 300000 miles and I don't think it has ever went 100 miles without a light coming on for something. It will light up if its a teaspoon low on antifreeze. I've never had problems with it other than worrying about the lights. Keep a good eye on the coolant. I'm not sure about the 5.3's but the 6.0's are leakers. Remember, too much worrying will give ya white hair. LOL
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Posted By: steve(ill)
Date Posted: 01 Apr 2018 at 8:35am
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.
------------- Like them all, but love the "B"s.
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Posted By: john(MI)
Date Posted: 01 Apr 2018 at 12:55pm
Check the owners manual for resetting the light. It may just be a reminder that maintenance is due, like an oil change.
------------- D14, D17, 5020, 612H, CASE 446
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Posted By: Ted J
Date Posted: 01 Apr 2018 at 2:56pm
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.
------------- "Allis-Express" 19?? WC / 1941 C / 1952 CA / 1956 WD45 / 1957 WD45 / 1958 D-17
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Posted By: fixer1958
Date Posted: 01 Apr 2018 at 4:10pm
Could just be the intake plenum gaskets (o-rings) leaking. They get hard with age and a plastic type intake. Code would come up as a P0171 and P0174 which is lean codes for Bank 1 and Bank 2. I'm interested to see what the codes are.
But then again there are several other possibilities.
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Posted By: Brian S(NY)
Date Posted: 01 Apr 2018 at 8:36pm
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...
------------- God made man.Sam colt made man equal.
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Posted By: HD6GTOM
Date Posted: 01 Apr 2018 at 10:22pm
Steve in Ill. has it right. Do not depend on what they tell you. We saw them telling gals they need $3-400.00 in parts when they needed a $20-50.00 sensor. Saw it dozens of times, remember they sell parts and you cannot return them after they have been installed. My grandson has a Toyota, oreillys told him he needed all new plugs and wires, car had a miss on #5 cyl. To replace the rear plugs you gotta tear the top off the engine. Was gonna cost several hundred dollars to do it. Took it to a good old mechanic, he found a $80.00 -02 sensor on the right bank shorted out. My 4.3 has had the ck engine light on for over 100000 miles. Every once in a while the ck fuel cap light comes on. If the light is flashing it needs immediate attention. I ignore it, it still runs around 22+ mpg on good fuel. Convience store fuel around 20-21 mpg.
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Posted By: desertjoe
Date Posted: 02 Apr 2018 at 4:41am
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.
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Posted By: sho-man1
Date Posted: 02 Apr 2018 at 9:57am
Son had a 2002 GMC 1500 with the 4.3. Got it used with 155k miles. The Catalytic converters were cobbled in the exhaust system, should have bee the first warning. It had random mis-fire check engine lights or random mis-fire. Lost the intake gasket where the coolant crosses the manifold. Got that cleaned up. Verified fuel pressure good, fuel pressure leak down good, cylinder pressure checked good, new spark plugs, wires and distributor, new cats, o2 sensors...all this over a four year period. I ended up installing some o2 sensor extenders and that was the end of most of the random misfire errors.
Dad had a S10 extended cab 4x4 with 4.3 no issues what so ever... good luck chasing that white rabbit. I had a harbor freight obdII reader plugged in to read real time data when driving on local trips:spark advance, ect, air temp, upstream and down stream o2 sensors. was getting close to pulling valve covers to check for broken valve spring but sold it quick to some landscapers who wanted the eight foot bed...glad to see it gone
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Posted By: Tbone95
Date Posted: 02 Apr 2018 at 10:53am
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. But....You did mention it has a slight miss. The miss itself can trigger the check engine light. Of course, you then have to determine what's causing that miss, and if it's worth fixing or not!
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Posted By: Stan IL&TN
Date Posted: 02 Apr 2018 at 11:13am
I piece of black tape over the indicator will work wonders if you have a full set of gauges in the dash. They will usually tell you all you need. Did that for a Pontiac that couldn't go 10 miles before turning on the light and since it ran fine it got the black tape treatment for the next 50K miles. I do have a code reader that I have used several times on SIL's Tundra. It did accurately tell me it had a misfire on a certain cylinder and after swapping coil packs between another cylinder determined it did have a bad coil pack. It also told me on another issue that it had a bad O2 sensor and was able to narrow it to the down stream one on one bank. They are pretty handy if the truck/car is running poorly.
------------- 1957 WD45 dad's first AC
1968 one-seventy
1956 F40 Ferguson
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Posted By: Ted J
Date Posted: 02 Apr 2018 at 5:14pm
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 
------------- "Allis-Express" 19?? WC / 1941 C / 1952 CA / 1956 WD45 / 1957 WD45 / 1958 D-17
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Posted By: fixer1958
Date Posted: 02 Apr 2018 at 6:21pm
Maybe.... It's an Evap code. It's on top of the intake manifold or there abouts. Has a hard plastic line going off of it. Follow it back and it should have a fitting with a green cap on it. That's the line you are looking for. Disconnect the vacuum line at the Purge Valve, unhook the electrical connector and start it. It shouldn't have a vacuum on it. If it does it's bad. If not, probably ain't it. Codes kind of generalize things. It's in that particular system but not specifically that.
Other option would be the vent valve under truck back above the spare tire. They fill up with dust and stick and won't allow a vacuum to be pulled on the system to make sure the fuel containment is sealed. Couple of other things but I'm not going to get into it. Check the Purge Valve, they go bad pretty often, causes a vacuum leak too.
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Posted By: Ted J
Date Posted: 02 Apr 2018 at 6:46pm
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.....
------------- "Allis-Express" 19?? WC / 1941 C / 1952 CA / 1956 WD45 / 1957 WD45 / 1958 D-17
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Posted By: DiyDave
Date Posted: 02 Apr 2018 at 8:51pm
Posted By: Ted J
Date Posted: 03 Apr 2018 at 10:46pm
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.....
------------- "Allis-Express" 19?? WC / 1941 C / 1952 CA / 1956 WD45 / 1957 WD45 / 1958 D-17
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Posted By: tadams(OH)
Date Posted: 04 Apr 2018 at 2:02pm
Get a piece of copper tubing on the end of your blow nossel so you don't have to get too close and eat all that dust when you blow out that filter. Tom
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