Question about Chevrolet G30

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Need a copy of 1986 Chevrolet Van G30 vacuum circuit diagram

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  • jcunni Aug 30, 2008

    I began to replace the vacuum hoses on my 86 G50 van. After I completed the job -- my A/C control will no longer function. Did I fail to hook up the hose to that control?

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Look under the hood on the fan shroud

Posted on Jul 19, 2009

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2 Answers

Need manaul for g30 van


We do not have this manual. Just to old. You can buy a used one here.

Sep 20, 2012 | Chevrolet G30 Cars & Trucks

1 Answer

Need Vacuum routing for my 1985 G30 Class C RV it has a 350 with 4 bbl carb


Check this diagrams for 1985 Chevrolet Truck G30 1 ton Van 5.0L 4BL 8cyl (click over pic for zoom)...

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Fig. 123: 1985 5.0L and 5.7L engines-Federal with automatic transmission (G10, 20 and 30 models)

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Fig. 126: 1985 5.0L and 5.7L engines-California with automatic transmission (G10, 20 and 30 models)

Hope this helps.

Apr 18, 2011 | Chevrolet G30 Cars & Trucks

1 Answer

Diagram of connection of a G30 1986 van carburetor need vacumn hose connection diagram to reconnect carburetor with a 350 engine and quatro jet carburetor


I find this vacuum diagrams for 1986 Chevrolet Truck G30 1 ton Van 5.7L 4BL 8cyl (click over pic for zoom)...

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Fig. 136: 1986 5.7L engine-Federal with automatic transmission (G10, 20 and 30 models)

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Fig. 137: 1986 5.0L and 5.7L engines-California with automatic transmission (G10, 20 and 30 models)

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Fig. 138: 1986 5.7L engine-Federal with manual transmission (G30 heavy duty models)

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Fig. 139: 1986 5.7L engine-Federal with automatic transmission (G30 heavy duty models)

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Fig. 140: 1986 5.7L engine-California with manual transmission (G30 heavy duty models)

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Fig. 141: 1986 5.7L engine-California with automatic transmission G30 (heavy duty models)


Hope this helps; keep us updated.

Jan 20, 2011 | 1986 Chevrolet G20

2 Answers

Where can I find a fuse panel diagram for my G30 van (1995)


On my 91 it is under the dash - just to the left of the steering wheel column.

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1 Answer

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NAPA auto parts has a listing on all belt routings

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Gas in oil


Ok, only two ways the oil can mix with the gas. one is a blown head gaskets. the other would be bad piston rings.

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1 Answer

I have a 1986 gmc 2500 van and my vacuum lines are crossed up and i need help uncrossing them


Carb vacuume lines? I can direct you to a holley website .... it has a diagram that has the q-jet vacuume routing all you have to do is look at the diagram then scroll down and look at the number to see where it goes.

http://www.holley.com/data/Products/Technical/199R9881.pdf

Hope this helps.

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1 Answer

Heater core


HEATER CORE REPLACEMENT

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