SOURCE: 1987 Chevy G20 van replace power steering pump
Does your van have the serpentine belt? If so maybe I can help, I replaced the Power steering pump on my 90 G20 a couple of weeks ago. The trick is that you need to pull the pump pulley which is pressed on to access the mounting bolts which attach the pump to the engine. Harbor Freight tools sells a great tool designed for this job for $20.00. Once you have the correct tools, remove the serpentine drive belt. You may also need to remove the fan shroud. the pump shaft looks like it has an allen socket in the center, but this is for use in the manufacturing process, and will not come out. Place the puller tool on the pulley following tthe instruction that come with the tool, and remove the pulley. loosen, but do not remove the nut on the high pressure hose connection. use a pair of **** pliers to cut and remove the crimp clamp on the low pressure hose. If your pump has the remote reservour loosen the clamp on the reservour hose also. Remove the three mounting bolts, place a large pan under the pump to catch drips, and remove the prevously loosened hoses. there will be fluid leaking all over and the pump should come free, There are two types of replacement pump sold. With and without reservour. This reservour is a metal cover that fits over the back of the pump, and should not be confused with the reomte revervour found on some newer models which is next to the battery. This reservour is held in place be two throught the pump bolts which are removed at the back of the pump. If your new pump has a reservour you will probably still need to remove these bolts and put them in the replacement pump as most are shiped without these bolts. If you replacement pump comes without a reservour pull the bolts, the reservour should pull off of the old pump and slide onto the new one. check the o rings and replace the through the pump bolts. Installation is the reverse of removal execpt that 1/2" hose clamps replace the crimp clamps on the low pressure hose, and the puller tool is set up differently to replace the pulley. Finally if you don't flush contaminants out of the system your repair will last maybe a week. www.cardone.com has a great article about power steering flushing, read it before you start Good luck.
SOURCE: I need a wiring diagram for a 1994 Chevy G20.
You can go to Autozone.com, and obtain a wiring diagram.
If they have the Repair Guide for the vehicle, they'll have the wiring diagram also.
[I checked, they have the wiring diagram for 1994 Chevrolet G20 3/4 ton Van's]
To view their Repair Guides you have to become a member. It's free to join, and you receive no spam mail.
I have suggested using AutoZone's Repair Guides on here, to those who need access to a free online repair guide. I joined to check it out before recommending, and have never received any spam mail, or have had any problems.
On the home page for AutoZone, go up to the right, and click on -Become a member.
You'll be directed to another page, where you are asked some personal information.
I gave my real email address of course, but that was it.
Write down the user name, and password you have chosen.
After you have filled it out go to the bottom, and click on Submit.
You are instantly a member, and do not have to wait for an email.
Go to the home page again, and this time click on Log In.
After you have logged in go to the upper Left, and click on - Manage My Vehicles
Now go down to the bottom right, and click on - Add a vehicle, in the orange rectangular button.
Click on the Year (1994), then you'll be directed to another page.
Click on the Model (Chevrolet)
Now scroll down, and click on - G20 3/4 ton Van
Click on the Engine size used.
You will now be on the main page.
To the left you will see the heading -
Select a Category
Scroll to the bottom, and click on - Vehicle Repair Guides
Go to the right, and click on - Chassis Electrical - in blue.
Under the white - Select a Chapter - heading to the left, scroll down, and click on - Wiring Diagrams
If you are not familiar with reading wiring diagrams, you may want to view the first two instructional diagrams,
How to read and interpret wiring, and Common wiring diagram symbols.
If your van has a gasoline engine, the wiring diagrams for the 1994 G20's start at the 27th diagram down.
(If I have counted correctly. It is the weekend)
To enlarge the diagram you can either click on Enlarge, or simply Left-click on the diagram itself.
Use the bars on the right side, and bottom to move the diagram around, so you view it fully.
Testimonial: "Awesome solution. Just what I needed. Thanks!"
SOURCE: routing diagram for a Chevy G20 serpentine belt?
Okay, there are a few engines that come in this van, lucky there the same except,they come with or without ac or airpump, so i will give you all of them and you choose the right one.
SOURCE: Engine Diagram Chevy Small Block 305
could be from the intake manifold or a frost plug, pressurize the cooling system and use a mirror to check the rear of the engine, check the intake at the head and the frost plugs at the back of the engine, if you can.t find it get under the car and try again, it may be leaking between the bell housing and the block, then removal of the trans will be necessary
Fig. Fig. 49: 1984 305 (5.0L) V8 engine-4bbl federal and low altitude with automatic transmission
Fig. Fig. 50: 1984 305 (5.0L) V8 engine-4bbl federal and low altitude with automatic transmission alternate
Fig. Fig. 51: 1984 305 (5.0L) V8 engine-4bbl federal and high altitude with automatic transmission
Fig. Fig. 52: 1984 305 (5.0L) V8 engine-4bbl federal and high altitude with automatic transmission alternate
Fig. Fig. 53: 1984 305 (5.0L) V8 engine-4bbl federal and high altitude with manual transmission
Fig. Fig. 54: 1984 305 (5.0L) V8 engine-4bbl federal and high altitude with manual transmission alternate
Fig. Fig. 55: 1984 305 (5.0L) V8 engine-4bbl federal and low altitude with manual transmission
Fig. Fig. 56: 1984 305 (5.0L) V8 engine-4bbl federal and low altitude with manual transmission alternate
Fig. Fig. 57: 1984 305 (5.0L) V8 engine-4bbl federal and low altitude with manual transmission alternate
Fig. Fig. 58: 1984 305 (5.0L) V8 engine-4bbl federal and low altitude with automatic transmission alternate
Fig. Fig. 59: 1984 305 (5.0L) V8 engine-4bbl federal and high altitude with automatic transmission alternate
Fig. Fig. 60: 1984 305 (5.0L) V8 engine-4bbl federal and low altitude with automatic transmission alternate
Fig. Fig. 61: 1984 305 (5.0L) V8 engine-4bbl federal and high altitude with automatic transmission alternate
Fig. Fig. 36 1984 305 (5.0L) V8 engine Canada
Fig. Fig. 37 1984 305 (5.0L) V8 engine California alternate
Hope this helps (remember to rate this answer).
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