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I just did this yesterday. Remove the air filter assembly up to the throttle body. Remove the coolant reservoir. Unhook upper radiator hose from the fan shroud and anything else that is connected to it. There are 6 screws that attach the top part of the fan shroud to the bottom. Remove the top, leave the bottom. The rad hose and AC hose should bend enough to the towards the enging to get out the top shroud. You should probably flush the radiator now. Plug the MAF from the air filter assembly back in if you want it to run a little smoother while flushing. Watch out for the fan, and make sure it's not going to hit anything. Unfortunately your radiator probably has a non-functioning draincock, and you'll have to remove the lower radiator hose to flush and drain. Not comes the fun part. The oil cooler lines and trans cooler lines are connected to the radiator by these little c-clips. They are a pain in the rear. Use a small flat head screwdriver or something small enough to get these off. They are stainless clips, but could be surrounded by rust especially the lower ones. Try some WD40, if that doesn't work you are probably looking at new oil cooler lines (easy job). The trans cooler lines could be harder to replace, so check on that. Try to keep water from getting in the lines, and fluids from getting in your radiator hose. Unhook your upper and lower radiator hoses, and pull out the radiator. Reverse steps to install. When filling the radiator back up pour a gallon or two of coolant into the upper radiator hose and then attach to the radiator. You'll get less air in the system than if you only fill into the neck.
What else can I help you with?
Where is the radiator drain plug on a 2003 Express Chevy van 3500 located?
There is not drain plug, you need to remove lower rad hose.
Where is the camshaft sensor on a 2003 express 3500 6L?
The camshaft sensor on a 2003 express 3500 6L is found on the inside of the distributor.
Where is radiator drain plug on 2004 3500 Chevy Express?
There is no DRAIN PETCOCK on the radiator , You have to pull the lower hose to drain . Thanks GM designers someone asleep at the wheel.
How do you replace an upper control arm bushing on a 1998 Chevy express 3500 van?
puting your finger in the motor
How do you replace heater core on a 2000 3500 Chevy Express van?
To replace the heater core on a 2000 Chevy Express 3500 van, start by disconnecting the negative battery cable and draining the coolant from the radiator. Remove the dashboard and the HVAC housing to access the heater core; this typically involves removing several screws and connectors. Once exposed, disconnect the heater core hoses and remove the old core, then install the new one in reverse order. Finally, reassemble the dashboard, refill the coolant, and check for leaks.
On a Chevrolet express van 3500 where is the tire jack?
on a Chevrolet express van 3500 where is the tire jack kept at?
How do you replace the upper dash on a 2003 dodge 3500?
Take the old one off, and then put the new one on! Simple as that
How do you tune up a 2004 Chevy Express 3500 6.0 van?
parts needed for a tuneup on 2004 chevy express 3500 van
How do you program a keyless entry remote for a 2003 Chevy Express 3500 van?
can soneone help me? i lost all my remote keyless entry for my 2003 Chevy express van and i just got a new repacement. but i don't know how to program it.. can soneone help?
How do you bleed the coolant system on a 2004 Chevrolet express 3500 van?
You have to use a radiator funnel kit from napa part # 77-4000 runs about $20. Chevy vans do not have a bleed screw.
How do you remove lower rad hose on a 2004 Chevy express 3500?
To remove the lower radiator hose on a 2004 Chevy Express 3500, start by allowing the engine to cool completely to avoid burns. Next, place a drain pan under the radiator, then loosen the hose clamp at both ends of the hose using a screwdriver or pliers. Once the clamps are loose, slide them away from the hose, then gently twist and pull the hose off the radiator and the engine block. Be prepared for some coolant to spill, and ensure you properly dispose of any fluids.
Is it necessary to use a lift to replace the thermostat on a 2000 Chevy Express 3500 van?
No. the thermostat is on the top of the engine where the upper radiator hose connects to the engine. There is a flange that the hose slips on/clamps to. There are 2 bolts that hold that flange to the engine. Take them out and pull the flange off of the engine. The thermostat is sandwiched between those parts. You will have to take out the air box and maybe the radiator overflow resovoir to get to it, however.
