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chevy Silverado 3500

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Q: What kind of diffirential is in my 2004 chevy silverado 3500 (DMAX 6.6L turbo)?
What kind of diffirential is in my 2004 chevy silverado 3500 (DMAX 6.6L turbo) what weight gear oil should i use and how much? is there a drain plug or do i have to pump it out through the fill hole? How often should i change it?

Thanks for any help

A: consult owner’s manual, the front has a drain and the rear has a drain hole. both axles use syn fluid. 80-90 i believe

Q: Allison transmission in 2004 chevy silverado 3500, question about internal filter.?
I have a 2004 chevy silverado 3500 with a 6.6L turbo diesel and allison transmission, i have heard that the internal filter only needs to be changed if i have the entire transmission overhauled. is this true? also where is the filter located, is it in the pan?

A: yes it is in the pan the filter on the out side or the screw on is the main filter to kept changed it will take most of the dirt out the one in the pan need to be changed win you put new trans fluid in that the best time to do it.

Q: Does a 2004 chevy silverado 3500 w/ allsion transmission have a drain plug on the torque converter?
also where is the torque converter located? if mine has a drain plug, how would i completely refill my transmission after fully changing it?

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Q: On a 2004 chevy silverado 3500 with duramax diesel engine what is the best way to chagne the fuel filter?
I know it can be done by pulling the passenger side wheel well cover off so you can do it from the bottom, How do you pull the cover off? there are way too many clips for me to know which ones to pull off?

Thanks

A: THeres actually only about 6 clips you have to pull, get ahold of the cover and look to see which one are holding it. The is about the easiest and fastest way to do it. You can lay over the fender and reach it put if its really tight it can be hard to get ahold of there. Pull the filter, replace it turn the set screw about a 1/4 of a turn and then prime the heck out of it until it starts to squirt fuel out of the set screw and then tighten the set screw and your done.

Q: I have a 2004 chevy silverado 3500 with a duramax diesel engine, the fuel filter is a spin off style?
it has a water sensor on the bottom that you just keep reusing with the new filter. How much should i tighten the filter?

Thanks
Also, how do you prime it. i have seen the little triangle shaped cover with 3 screws in it. it is on top of the filter assembly. is the primer bulb under that?

A: i hate changing those sob’s but tight enough to just squish the o ring, there isn’t much pressure there. you also have to prime it jic ya didnt know about 20 push’s gets it

Q: how do i remove a heater core of a 1998 chevy silverado 3500?
ii need to remove the heater core of my 1998 chey silverado 3500 and replace it with a new one… can anyone give me the details on how to do it and also any diagrams you may have for it too… please help
i dont not want to damage my vevhile and chilton does not make manuls for the year of my truck neither does haynes
is their any way to do it without removing the dash
thank you everyone but does any have any pictures.. so i know what i am looking for

A: Remove the glove box to give you more room. There is a small plate on the under side of the heater box on the pass side. There will be 7 or 8, 7mm headed screws that hold it on, there is one hidden against the fire wall betwwen where the heater hoses come it. The core will be right there when you remove it.

Q: How do you replace the fuel injectors on a 2004 chevy silverado 3500 (6.6L duramax diesel engine)?
Are there any special tools needed and what do i have to take off to get to the injectors? What are symptoms of injectors going bad?

Thanks

A: This is NOT something that you want to attempt yourself!!!! There is a procedure for this and tools required. You can cause FAR FAR more problems doing this without kowing exactly what you are doing.

What problems are you having with the truck?

Q: Where is the intercooler located on a 2004 chevy silverado 3500 with a 6.6L turbocharged duramax diesel?
And what type of intercooler is it? example: air to air

Thanks

A: 2004 Chevy Truck Silverado 2500 4WD V8-6.6L DSL Turbo VIN 2
Vehicle Level Powertrain Management Fuel Delivery and Air Induction Intercooler Service and Repair

Service and Repair
Notes

Charged Air Cooler Replacement

Removal Procedure

Remove the charged air cooler hoses/pipes.
Remove the radiator.
Remove the charged air cooler bolts. Important: Do not damage the charged air cooler fins while removing.
Remove the charged air cooler.
Disengage the bottom mounts from the radiator support.
Remove the left side from the radiator support.
Angle up the right side and rotate in order to remove.
Clean the charged air cooler by flushing with mild soap and water. Do not use stream pressure to clean.
Inspect the charged air cooler for the following damage:
Damaged fins
Cracked or distorted hose connections
Broken or loose welds
Leaks in the core or the tank connections
Replace the charged air cooler if damage is found.
Inspect the charged air cooler mounting insulators and replace if required.
Installation Procedure

Install the charged air cooler.
Angle in the left side.
Slide to the left.
Move in the right side.
Position bottom insulators in the radiator support. Notice: Refer to Fastener Notice in Service Precautions.
Install the charged air cooler bolts. Tighten the bolts to 21 Nm (15 ft. lbs.) .
Install the radiator.
Install the charged air cooler hoses/pipes.

Q: How do you change the engine coolant in a 2004 chevy silverado 3500 (6.6L duramax diesel)?
I have searched and looked in my owners manual and the diesel supplement text that came with the manual and i could not find anything.

A: The radiator drain is on the bottom of the radiator opposite the lower radiator hose. Drain this into a bucket. The engine block has its drain plug located just below the freeze plugs on the engine block. Remove this bolt and drain the coolant into a bucket.

Recycle of safely dispose of the coolant. It is often toxic to animals.

To refill, close the radiator drain valve and replace the engine drain plug(s). Pour 1/2 the capacity of the engine coolant system (that is in your manual) into the radiator. Top up the radiator with water (distilled is best but not necessary). Start the engine and let it come to temperature (this allows the thermostat to open and replace the coolant in the engine which was drained earlier.

When the upper radiator hose becomes warm to the touch, the thermostat will have opened and allowed coolant to flow from the radiator into the engine so with the engine still running, CAREFULLY loosen the radiator cap to its first unlocked position.

You may get steam release so use a rag to do this. Once it is loose and any steam has escaped, top up the radiator with water and fill the overflow receptacle with a 50/50 mix of water and antifreeze. Cap the radiator.

Finally, check for leaks. If your coolant was dirty you may need to flush your cooling system and you do that between the drain and coolant addition.

Q: How do you replace the starter on a 2004 chevy silverado 3500 (6.6L duramax diesel)?
Please give details especially when it comes to putting shims back in plase.

A: first you don’t need shims. disconnect batteries remove wiring from starter, remove 2 starter bolts. loosen exhaust clamp for turbo downpipe remove t-case mount nuts and raise t-case. remove starter and reinstall all

Q: How can I get a diagram of the a/c of a 2001 Chevy 3500 Silverado?
I just want to know how the a/c works and I need a diagram of it.

A: Try the chevy dealer or the library and ask for a chiltons manual.

Q: How to change engine coolant in 2004 chevy silverado 3500 (6.6L turbocharged duramax diesel)?
It has a pressurized reservoir, it does not have a cap on the radiator? any help would be appreciated

Thanks
there is a drain valve on the bottom of the radiator, but my question is how do i refill the radiator since there is only a pressurized reservoir and no cap on the radiator?

A: The system is filled via the reservoir. There is a small 12mm bleed bolt in the top of the thermostat housing (which is right behind the oil fill tube) that must be removed before you start filling the reservoir. Once your coolant starts coming out of this hole, reinstall the bolt. Then continue filling the reservoir to the full mark. Leave the cap off, start the engine, and fill back up to mark. Put cap on and drive it until it gets to operating temperature, then recheck level and fill to mark.

Q: My truck has an eaton G80 locking diffirential, it is a 2004 chevy silverado 3500 dually.?
I have heard that GM makes a friction modifier, what is it,what does it do and do i need it?

A: this gas guzzler uses a friction mod to change MPG from 6 to 6.5….not.

Q: Where is the pcv valve located on a 2004 chevy silverado 3500 (6.6L turbocharged duramax diesel V8)?
please be specific.

A: Document ID# 1640357
2004 Chevrolet Chevy K Silverado – 4WD

Starting in January 2004, a closed crankcase ventilation system is used to meet new diesel emissions requirements.

Located in both valve rocker arm covers are diaphragms to control the venting of the crankcase gases. As the pressure of the crankcase gases increase, they overcome the spring holding the diaphragm in the closed position. If a vacuum situation arises in the crankcase, the diaphragm closes the port in the valve rocker arm cover. Closing the port will prevent unfiltered air to enter the crankcase.

The crankcase gases travel from the valve rocker arm covers through hoses to a tee, where they enter the turbocharger inlet duct. Because of the use of a closed crankcase ventilation system, it is normal for oil residue to be found on the turbocharger compressor wheel and inside the charge air cooler, pipes, and hoses.

No routine maintenance is required to the crankcase ventilation system.

Q: How would i jump someone off with my truck? it is a 2004 chevy silverado 3500 (6.6L diesel)?
I’m asking because it has 2 batteries, im pretty sure the voltage is still 12volts. How are they wired and would i just connect cables to one battery? could soemone jump my truck with a car that just has one battery?

Thanks

A: Yes, you are correct as far as your vehicle still having a 12 volt system, as they are hooked up in a parallel circuit. If they were hooked up in a series circuit, that would make for 24 volts. It is best to hook up to your primary battery, not in that the other one is isolated, because it’s not, but because it’s the one that is most directly connected to the Alternator.

Otherwise, follow the proper procedures as outlined in the link the first poster provided, especially the parts about having both vehicles off, and making the last connection away from the battery. The Master Brake Cylinder often works well for this, if you can reach it. Also that the other car has it’s doors closed, and/or as much else turned off as possible.

As far as someone else jumping your truck, yes, that can be done. It would be helpful if the other car had a battery with a high CCA/Reserve Capacity, and a High Output Alternator, as your diesel-equipped vehicle requires more power to start it, hence the use of 2 batteries.

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