Look for this.
Is this a Vanity or a Bailout?
Never had a Silverado but this is what I found in a search:
Q: How do you remove the wiper assembly on a 2003 Chevy Silverado?
In: Chevy Silverado
http://wiki.answers.com/Q/How_do_you_remove_the_wiper_assembly_on_a_2003_Chevy_Silverado
Answer
1) Remove the wiper arms
1. Mark the position of the wiper blade on the windshield with a suitable marker or a piece of masking tape.
2. Disconnect the washer hose.
3. Remove the cover from the nut on the wiper arm.
4. Remove the nut from the wiper arm.
Important: Use a battery terminal puller to remove the wiper arm from the drive shaft.
5. Remove the wiper arm from the drive shaft.
6. Clean the knurls of the drive shaft with a wire brush.
2) Remove the air inlet grille panel.
1. Pull up in order to release the outboard air inlet grille panel clips.
2. Remove the attaching clips running along the edges of the center air inlet grille panel.
3. Remove the sheet metal screws on each end of the air inlet grille panel.
4. Disconnect the windshield washer hose from the nozzle underneath the center air inlet grille panel.
3) Remove the 4 bolts and the reinforcement panel.
4) Disconnect the electrical connector from the wiper motor.
5) Remove the 2 bolts from the wiper transmission assembly
6) Remove the wiper transmission assembly from the vehicle.
7) Remove the drive link from the wiper motor crank arm.
8) Remove the 2 bolts retaining the wiper motor.
9) Remove the wiper motor from the wiper transmission assembly.
This is not a job for the faint of heart. It’s not complicated....just a lot of R&R to get to it. It is buried behind the duct work for the A/C.
My advice is to pay someone to do it.
do you have a library card? log onto your local library website and look in their auto database. it will give complete instructions. also I believe autozone.com has a complete auto database on their website. this should be an easy find if you look...
I have my late dad’s 2003 Silverado. I’m looking at the manual. Are you sure you need the motor replaced or just perhaps replace a fuse? According to the manual for the 2003 Silverado, the windshield wiper motor is protected by an internal circuit breaker and a fuse. If the motor overheats due to heavy snow, etc., the wiper will stop until the motor cools. If the overload is caused by some electrical problem and not snow, etc, be sure to get it fixed.
The fuse block access is located on the driver’s side edge of the instrument panel. Pull off the cover to access the fuse block.
To remove the fuses, hold the end of the fuse between your thumb and index finger and pull straight out.
You may have spare fuses located behind the fuse block access door. These can be used to replace a bad fuse. However, make sure it is of the correct amperage.
Check the fuse, switch, relay and circuit board before replacing the motor. I’ve used Starbrite marine polish on a windshield before, and it is almost as good as having wipers.
(water beads up and slides right off)
Hate to ask, but is it possible the wiper motor is fine and it is just a blown fuse?
If all else fails go to the Chev. Dealership parts department and ask one of them to print you a layout of the wiper motor. Most likely they will and it should give you a detail drawing of the assembly.
90% of the time it is the circuit board behind outside cover of wiper motor. wiper motor is located on firewall on drivers side of engine compartment just below windshield cowl on vertical part of firewall just inboard from power brake booster. 3 or 4 small bolts hold cover on and simply unplug and replace. best test if it is circuit board is to see if wiper motor starts by tapping same outside cover lightly. it is a PITA for most DIY’ers.
good luck
Whatever you do, make sure you disconnect the battery first.
I’m normally pretty handy, but I blew out a headlight switch the other day working on the console.
I ferget the headlight switch is always hot!!
Take it to Mr. Goodwrench.
Have the problem verified than buck up and pay up.