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Where can I find the diagram of the Fuse panel for a 1991 Chevy G20 sport Van

Tiny
PACKERFANINBHC
  • MEMBER
  • 1991 CHEVROLET VAN
  • 200,000 MILES
Where can I find the diagram of the Fuse panel for a 1991 Chevy G20 sport Van for free online? Mine is missing the cover and you don't know what's what.
Monday, January 23rd, 2012 AT 12:18 AM

28 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Here is the fuse panel diagrams and a guide to help you test the fuses.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed. There are a few options so I included them all

Cheers
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Monday, January 23rd, 2012 AT 12:25 AM
Tiny
DHEYDRICK
  • MEMBER
  • 1 POST
  • 1995 CHEVROLET VAN
  • V8
  • 2WD
  • AUTOMATIC
  • 125,000 MILES
Where can I find info about the fuse box? More specifically, I don't have an owners manual. Where do I find a diagram of the fuse box under the dash?
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Monday, October 1st, 2018 AT 11:14 AM (Merged)
Tiny
DOONBOGGLE
  • MEMBER
  • 2 POSTS
I have a 94 Sportvan-G30 and manual. If this is the same as yours, will be glad to scan the page of diagram.
Email me at doonboggle at yahoo. Com
Chuck
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Monday, October 1st, 2018 AT 11:14 AM (Merged)
Tiny
CHUCK215
  • MEMBER
  • 1 POST
  • 1992 CHEVROLET VAN
  • V8
  • 2WD
  • AUTOMATIC
Diagram of fuse panel for 1992 chevy beauville G10 van, heater blower switch not working need to track down the problem, Thank you
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Monday, October 1st, 2018 AT 11:14 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
#20 is the heater fuse (front heater motor)
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Monday, October 1st, 2018 AT 11:14 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Sorry, I meant to say #10.
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Monday, October 1st, 2018 AT 11:14 AM (Merged)
Tiny
ROG433
  • MEMBER
  • 3 POSTS
  • 1992 CHEVROLET VAN
1992 Chevy Van

could any one tell me where the cruise control fuse is located?
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Monday, October 1st, 2018 AT 11:14 AM (Merged)
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Hi there.

Cruise control is fuse No 4.


https://www.2carpros.com/forum/automotive_pictures/61395_Graphic_50.jpg



Mark (mhpautos)
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Monday, October 1st, 2018 AT 11:14 AM (Merged)
Tiny
ROG433
  • MEMBER
  • 3 POSTS
Is that the only fuse because it was good any other ideas to get it working?
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Monday, October 1st, 2018 AT 11:14 AM (Merged)
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Hi there,

That is the only fuse, you can check the brake cancel switch is not faulty, apart from that I will have to read up the the system first.

Mark (mhpautos)
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Monday, October 1st, 2018 AT 11:14 AM (Merged)
Tiny
ROG433
  • MEMBER
  • 3 POSTS
Could it possibly be a vaccuum line off?
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Monday, October 1st, 2018 AT 11:14 AM (Merged)
Tiny
MUDD8227
  • MEMBER
  • 3 POSTS
  • 1989 CHEVROLET VAN
  • V8
  • 2WD
  • AUTOMATIC
  • 130,000 MILES
Hi and thank you for your help in advance. I am having an issue with my work van. I took it off the road about 2 months ago and took the battery out of it. Now I put the battery back in it and I'm not getting any power to the fuse box. I'm not getting any power at all. The battery is fine. I am getting power where the wiring harness plugs into the fuse box, but not at any of the fuses. I thought it might be a blown circuit breaker in the box (one of the metal 30A fuses) but they are fine. Then I thought it might be the ignition switch, but I'm not getting head lights or dome light or anything. On one of my newer cars it has a fuse box or junction box under the hood with relays and fuses in it, but I'm not seeing on of those on this van. I'm completely out of ideas. Any help would be much appreciated. Thank you again.
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Monday, October 1st, 2018 AT 11:14 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Test all the fusible links on the starter motor the ones that looks like hump on the wire before and after it and then get back
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Monday, October 1st, 2018 AT 11:14 AM (Merged)
Tiny
MUDD8227
  • MEMBER
  • 3 POSTS
I've give that a shot tomorrow. You really think it could be that though? I'm not getting a click from the solenoid or anything like that. All that's on the wire are a large rubber boot, is that what your talking about? If so do I have to cut them open to get at the fuse?
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Monday, October 1st, 2018 AT 11:14 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
If its hook up along the battery positive cable at the starter -pierce it before and after with a test light
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Monday, October 1st, 2018 AT 11:14 AM (Merged)
Tiny
MUDD8227
  • MEMBER
  • 3 POSTS
Hi rasmataz. Thanks for all your help. I finally figured it out. It was something really simple and stupid. Who ever had the van before us did some work with the battery. Seems they made the power terminal going down to the starter black also. I have no idea why. When I put the battery back in I hooked up the negative and the red cable. After looking some more I found that there was another cable going to the starter but it was black. Oh well, it's running now. Like I said, thank you again for all your help.
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Monday, October 1st, 2018 AT 11:14 AM (Merged)
Tiny
JO0508
  • MEMBER
  • 9 POSTS
  • 1992 CHEVROLET VAN
  • 7.4L
  • V8
  • 2WD
  • AUTOMATIC
  • 146,000 MILES
Are there anything wrong with adding a circult to the fuse panel using fuse taps?Are they safe?
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Monday, October 1st, 2018 AT 11:14 AM (Merged)
Tiny
CARADIODOC
  • MECHANIC
  • 33,916 POSTS
GM used to be pretty good about providing switched and unswitched terminals in their fuse boxes, and they were labeled. If you have those, that's the best choice. The taps you're referring to do work but they can spread the terminal in the fuse box because you're, in effect, making the blade of the fuse twice as fat. That wont be a problem until you want to remove that tap, then you may have an intermittent connection on that fuse.

If you do use the tap, place it on the hot terminal. That way the added current for your new device wont go through the existing fuse and potentially overload it. To find the hot terminal, just pull the fuse out, then use a voltmeter or test light to see which terminal has 12 volts on it. That's the one to use.

Also be aware that some devices, like power inverters, can generate signals that interfere with the computers on the vehicle. If you start having trouble with the dash gauges or other things not working properly, try tapping into a different fuse.
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Monday, October 1st, 2018 AT 11:14 AM (Merged)
Tiny
JO0508
  • MEMBER
  • 9 POSTS
Funny you should say that tapping into some fuses would interfere with gauges. Because I tapped into a fuse with a tach gauge one time. The fuse was marked alt. When I started the vehicle the mph gauge started to rise and when I went to shut the engine down it wouldnt shut off for like 4 or 5 seconds later after turning the key.
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Monday, October 1st, 2018 AT 11:14 AM (Merged)
Tiny
CARADIODOC
  • MECHANIC
  • 33,916 POSTS
Funny YOU should mention that. I built a real lot of "bugs" into a dozen donated vehicles for my students to diagnose. We spent a lot of time on charging systems, and one of the bugs was on a '98 GMC truck. Part of the diagnosis involved testing the 12 volts supply for the generator, and that came through the "Battery" light on the gauge cluster, and it was fed from the "Gauges" fuse.
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Monday, October 1st, 2018 AT 11:14 AM (Merged)

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