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General Site Info => General Discussion => Topic started by: Gagecampbell82 on December 03, 2015, 07:29:41 pm

Title: My New truck, 2004 silverado. Anyone know anything I should about it?
Post by: Gagecampbell82 on December 03, 2015, 07:29:41 pm
Today I traded in my 94 s10 with a 2.2l 4 cyl (sigh) back to the car lot I got it from last month because I've had so much trouble out if it. And the oil pump went out and I was not going to pull the engine and put a 4cyl back in. 

So I traded it and a few hundred bucks added to the down payment on a 04 silverado 1500 2wd (extended cab 4-door or 2 "Half doors") with a 4.8l vortec and an auto  (assuming 4l60-E but I will have to confirm). It will come out to about $6,500 over about 2 years.

Was this a good deal? The only thing not working is 1 tail light and both tag lights.And the heat isn't great (assuming it's the door actuator thing because the vent selection does nothing. ) and there's a chip of plastic broken out of the heater core box on the inside that's taped back on. Which I will attempt to fix.

Do any of you guys know anything about these that I should know. it seems like a great truck.
Title: Re: My New truck, 2004 silverado. Anyone know anything I should about it?
Post by: Gagecampbell82 on December 03, 2015, 07:34:41 pm
The only bad spot other than scratches is a dent in the back of the cab and one in the top of the bed, something happened to it because it has what looks like rattle can clear coat on it. But oh well. Haha.
Title: Re: My New truck, 2004 silverado. Anyone know anything I should about it?
Post by: fitz on December 04, 2015, 04:50:03 am
What state are you in?
In Mass a dealer can't sell the vehicle with a non working tailight and license plate lights.
Title: Re: My New truck, 2004 silverado. Anyone know anything I should about it?
Post by: Gagecampbell82 on December 04, 2015, 06:33:50 pm
Alabama, I don't think we have any laws like that. But I'm unsure. Today I replaced one of the tag lights, it's a 194 like in a square body dash and I only had one. I pulled the taillight And the bulb is blown, 10.99 for 1 regular or 20.99 for 2 leds, so I'll have to pick some up.
Title: Re: My New truck, 2004 silverado. Anyone know anything I should about it?
Post by: Engineer on December 05, 2015, 07:27:17 am
'04? Hmmm...... Can't think of anything on the 1500s. There were some minor issues on the 2500s like the Duramax LLY, (some would overheat) and the transfer case pump rub (also random). Obviously nothing that affects you.

It seems that several '03~'05s had instrument cluster failures across all models though. IIRC.
Title: Re: My New truck, 2004 silverado. Anyone know anything I should about it?
Post by: Gagecampbell82 on December 05, 2015, 07:53:54 pm
I read something about the instrument cluster problem but luckily mine works fine, I thought I heard a lifter tick this morning, but I did some reading and it seems that some 4.8s just have a random tick that " doesn't affect engine life" but would you suggest a certain weight oil in it?  It has about 215k miles on it.
Title: Re: My New truck, 2004 silverado. Anyone know anything I should about it?
Post by: travisr1988 on December 07, 2015, 11:13:00 am
-The clusters have issues, although my 2000 hasn't had an issue yet.
-make sure the driveshaft carrier bearing is good.
-center console lids are weak.
-heater issue is likely the little motor at the bottom of the box in the center, mine would stay hot if I turned it to hot at all, grandpa replaced that motor (i believe that's what it is) and it works fine now, it's like a motorized diverter valve.
-intake vacuum leaks are common.

Like yours mine is a 4.8L auto extended cab.
Title: Re: My New truck, 2004 silverado. Anyone know anything I should about it?
Post by: Jason S on December 07, 2015, 12:20:37 pm
My '05 2500HD had a problem with harness connector at the HVAC blower motor that was repaired under warranty (manual dual climate system). It also seems that every 2005 Chevy/GMC work truck with the manual dual climate temperature control has had a problem at that same connector.
Title: Re: My New truck, 2004 silverado. Anyone know anything I should about it?
Post by: LTZ C20 on December 07, 2015, 12:57:28 pm
My '05 2500HD had a problem with harness connector at the HVAC blower motor that was repaired under warranty (manual dual climate system). It also seems that every 2005 Chevy/GMC work truck with the manual dual climate temperature control has had a problem at that same connector.
This is a fairly common issue on all the these trucks of this body style, including tahoe and suburban. It applies to single manual, dual manual and dual auto HVAC systems. The blower motor just gets worn out and causes high resistance in the connection between it and wiring harness connector. It's not a big deal tho, if all fan speeds are working, don't worry about it until you have a problem, you may never have an issue. Every vehicle does NOT have the problem, just alot experience the problem. My 03 Tahoe when we sold it six months ago had 203,000 miles, I don't remember if we ever had to replace the motor and connector, I don't think we did and we bought it brand new from the dealer I work at. Don't fix what isn't broken. This applies to the instrument cluster as well. It is fairly common but does NOT happen in every vehicle. I pretty sure the tahoe had its original cluster also, all functions worked when it sold.

Best thing to do is keep it clean, don't let leaves and debris, dirt and dust build up in the cowl area or under the dash, stuff that could get in there and make it hard for the blower to run efficiently, don't switch back and forth to different fan speeds repeatedly in a small time frame, and shut the blower motor off before you shut the vehicle off and make sure it's off before you start the vehicle again. This prevents a surge of power that can speed up the possibility of failure. Same for cluster, don't cycle the key alot starting and stop the engine, the clusters do a function sweep every time you start the vehicle, multiple starts in a row can cause premature wear on the stepper motors in the cluster. Also, the temperature sliders on the HVAC head, don't slide them up and down alot in short period of time like the blower motor, it can cause the HVAC head to wear out sooner or cause the temp actuators buried in the dash to cycle alot more than necessary and they will fail sooner, same for the mode selector knob.

Use the system as it is intended too but do not abuse it and it you might not ever have an issue. There's no better way to stop a problem than to prevent it from happening.
Title: Re: My New truck, 2004 silverado. Anyone know anything I should about it?
Post by: Gagecampbell82 on December 07, 2015, 11:40:34 pm
Thanks for the replies guys! My fan speed selector goes dumb sometimes and either won't go on 5 (high) or it will stop and I just switch it back to 4. That'll be good enough for me now. It also has The manual dual hvac setup. And possibly The towing package. I'll be checking  some rpo codes soon. The only "problem" with my gauge cluster is that the light for the volts gauge (I think)  is a little dim, but I assume that's because it is in the top right corner. Overall I really like the truck. And I've been dying to get my hands on a gen3 or gen4 engine. I don't plan to do any performance upgrades. It's only a 4.8 and is a daily driver. Although I've seen some impressive numbers from them. But the regular maintenance will be rewarding I hope.
Title: Re: My New truck, 2004 silverado. Anyone know anything I should about it?
Post by: travisr1988 on December 08, 2015, 09:13:18 am
I read something about the instrument cluster problem but luckily mine works fine, I thought I heard a lifter tick this morning, but I did some reading and it seems that some 4.8s just have a random tick that " doesn't affect engine life" but would you suggest a certain weight oil in it?  It has about 215k miles on it.

Mine is a 4.8L with 217k on it, makes a ticking noise as well, it is believed to be an exhaust leak at the manifold though. It has great oil pressure and runs great warm, a little rough cold, but it hasn't let me down yet.
Title: Re: My New truck, 2004 silverado. Anyone know anything I should about it?
Post by: LTZ C20 on December 08, 2015, 09:52:59 am
My tahoe was a 4.8 also, they are good engines. As for the tow package, are you referring to the trailer tow/haul mode button on the end of the shifter handle? If so, that is standard on all of these trucks, tahoes, suburbans, my tahoe had it too. I've never seen one of these without it.
Title: Re: My New truck, 2004 silverado. Anyone know anything I should about it?
Post by: Gagecampbell82 on December 08, 2015, 12:30:55 pm
My tahoe was a 4.8 also, they are good engines. As for the tow package, are you referring to the trailer tow/haul mode button on the end of the shifter handle? If so, that is standard on all of these trucks, tahoes, suburbans, my tahoe had it too. I've never seen one of these without it.

Thanks ltz. I didn't know it was standard, so I assume the reese hitch and the hookups for the thin flat and larger round trailer lights were standard too.
Title: Re: My New truck, 2004 silverado. Anyone know anything I should about it?
Post by: LTZ C20 on December 08, 2015, 01:45:39 pm
The tow/haul mode button on the shifter is standard yes. Lots of trucks also came with a hitch and the 7way trailer plug. If it has a Reese tow hitch that is not standard. I believe the "tow package" was the tow/haul button with a factory installed hitch and the 7way plug. If it has a 4 way plug also, that has been added. Look underneath at how the hitch is mounted. The bolts should look similar in appearance to other bolts such as those holding other parts of the truck together. If they look like large bolts that could have been purchased at a hardware store then the hitch has been added aftermarket. Not that there is anything wrong with that. Just look on the hitch for the class rating and weight loading label, make sure it is with the limits of the trucks towing weight abilities.
Title: Re: My New truck, 2004 silverado. Anyone know anything I should about it?
Post by: Gagecampbell82 on December 09, 2015, 01:43:52 pm
Thanks,  when it stops raining I'll give it a look. On my way home from cashing my check and xmas bonus my heater core started leaking  (my luck) but only with the blower on. After I turned it off just a small drip every now and then. Which I believe is from while it was leaking. It didn't leak bad just a small maybe knee cap sized puddle before I seen it.
Title: Re: My New truck, 2004 silverado. Anyone know anything I should about it?
Post by: Irish_Alley on December 18, 2015, 08:23:46 am
-The clusters have issues, although my 2000 hasn't had an issue yet.
-make sure the driveshaft carrier bearing is good.
-center console lids are weak.
-heater issue is likely the little motor at the bottom of the box in the center, mine would stay hot if I turned it to hot at all, grandpa replaced that motor (i believe that's what it is) and it works fine now, it's like a motorized diverter valve.
-intake vacuum leaks are common.

Like yours mine is a 4.8L auto extended cab.

this kind of wraps up the list that i know of. also add to it the evap canister are problematic and go bad if your check engine light comes on referring to evap this might be the problem i forget the code but i can find out.

also the HVAC controls like stated are problematic and like stated could be from excessive draw on the motor, most people dont realize these trucks have a cabin air filter than needs to be changed or it will cause the blower motor to pull harder than it should which might be why the HVAC controls have problems.
Title: Re: My New truck, 2004 silverado. Anyone know anything I should about it?
Post by: Gagecampbell82 on December 26, 2015, 12:00:53 am
Thanks for all the info,  I've had a little more time with the truck and it's still doing good, I believe the tick is an exhaust leak but down here our roads are literally flooded from rain.

so much that just about 5 min from my home, there's a culvert that has washed out and taken a large chunk of road with it. I take that road quite often and not only is it the way I take to the river, but its also the main road for traffic to brownsferry nuclear power plant. I can stand on my porch at night and see the blinking lights from the plant.

But anyway I'll have to double check the exhaust leak, and the main reason for the heater not working is because the chunk of plastic broken out is in the corner of where the blower blows air over the heater core, so when the gf is in the truck she complains about the cold air blowing on her, haha but it's warm on my side, so I'll epoxy that back on when I get time.

I've also noticed one of the door actuator things clicks very quietly when the passenger side manual heat adjustment thing is turned all the way up. So I keep it about 2 clicks from full hot and it goes away, but I've also found out the leaking water isn't the heater core because it's not any dexcool in the floor it's pure water, (ik the dexcool crap is a whole different situation that prob. Has its own thread by now, but if it ain't broke don't fix it) it'll be flushed out when it needs to be.

But I started thinking maybe this is something like the "wet carpet problem" but I haven't run the a.c. any, then I only noticed it's when it rains. So I'm assuming that it's entering somewhere under the cowl because the firewall didn't show signs of anywhere that's letting water in, and it's coming directly out of the heater, and the window gasket is also all good, so when I get a chance I'll pull the cowl and look for somewhere that needs a shot of silicone.haha.

 if anyone has any advice on why my dad's boot gets soaked every time it rains and we take my truck ( he never remembers about the water, and he always says  his foot is freezing before he remembers) I'd really appreciate it. Thanks.
Title: Re: My New truck, 2004 silverado. Anyone know anything I should about it?
Post by: rumblebox on December 26, 2015, 07:42:20 am
-Gauge cluster servo motors (03-07clsssic)
-blend door actuators making a clicky noise
-electric throttle body wears out and goes into limp mode
-exhaust manifold bolts break off in the head causing the manifold to warp and leak
-4L60e is on borrowed time after 100k miles.
-the 4.8 is unfortunate, but an LQ4/LQ9 6.0L drops and plugs right in.
-switch to Mobil 1, and see if the lifter tick goes away. (Check for leaks)
-it also wouldnt be a bad idea to replace the oil pump o-ring at that mileage. Sometimes the o-ring will harden and allow air to seep in, causing foamy oil. The pressure will still register normally, but a lifter will tick.