Question about GMC Sierra

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My Dad has a 1984 GMC Sierra truck with a 305 engine. Does this vehicle have two gas tanks? If so, where is the second one and how do you switch over to it. You can see a cap through the wheel wall. Is that it? Thank you for any help you can give.

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One on each side,under & attached to frame rails.., if 2 switch usualy lt on floor by door driver side ..or s/w on dash rocker s/w....

Posted on Apr 07, 2011

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1 Answer

Needing fuel line


Yes, they should interchange. Check your local salvage yards for a parts van. Or you might have to purchase a piece of tubing from your local parts store and bend it to match your original piece.

Oct 05, 2014 | Cars & Trucks

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Need an emissions schamatic for my 1984 K10 silverado 305 engine


Unfortunately, there are 13 variations for this engine and year. Was this truck sold or modified for high altitude? Was it sold in California or modified to meet the CA emission standards? Does it have a manual or auto transmission? After narrowing down based on answers to these questions, there are still alternative configurations depending on the particular equipment, so look carefully at the diagrams to see which components are used on your engine. Sometimes you can match the 3 letter code for the diagram to letters in the VIN or a sticker in the engine compartment. Please let me know if you have questions.


jturcotte_2426.gif

Fig. Fig. 49: 1984 305 (5.0L) V8 engine-4bbl federal and low altitude with automatic transmission

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Fig. Fig. 50: 1984 305 (5.0L) V8 engine-4bbl federal and low altitude with automatic transmission alternate

jturcotte_2428.gif

Fig. Fig. 51: 1984 305 (5.0L) V8 engine-4bbl federal and high altitude with automatic transmission

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Fig. Fig. 52: 1984 305 (5.0L) V8 engine-4bbl federal and high altitude with automatic transmission alternate

jturcotte_2430.gif

Fig. Fig. 53: 1984 305 (5.0L) V8 engine-4bbl federal and high altitude with manual transmission

jturcotte_2431.gif

Fig. Fig. 54: 1984 305 (5.0L) V8 engine-4bbl federal and high altitude with manual transmission alternate

jturcotte_2432.gif

Fig. Fig. 55: 1984 305 (5.0L) V8 engine-4bbl federal and low altitude with manual transmission

jturcotte_2433.gif

Fig. Fig. 56: 1984 305 (5.0L) V8 engine-4bbl federal and low altitude with manual transmission alternate

jturcotte_2434.gif

Fig. Fig. 57: 1984 305 (5.0L) V8 engine-4bbl federal and low altitude with manual transmission alternate

jturcotte_2435.gif

Fig. Fig. 58: 1984 305 (5.0L) V8 engine-4bbl federal and low altitude with automatic transmission alternate

jturcotte_2436.gif

Fig. Fig. 59: 1984 305 (5.0L) V8 engine-4bbl federal and high altitude with automatic transmission alternate

jturcotte_2437.gif

Fig. Fig. 60: 1984 305 (5.0L) V8 engine-4bbl federal and low altitude with automatic transmission alternate

jturcotte_2438.gif

Fig. Fig. 61: 1984 305 (5.0L) V8 engine-4bbl federal and high altitude with automatic transmission alternate

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1 Answer

93 gmc sierra 5.7 liter engine, injection carb, will turn over won't start, replaced fuel pump fuse, replaced fuel pump relay, replaced fuel pump inside gas tank, no gas flow to carb , gas gauge has always...


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1 8 4 3 6 5 7 2 Clockwise rotation

I Hope this Does the trick for ya. Im Sure its TRUE & CORRECT
PLEASE Remember to RATE Me Most folks Dont I Need the Ratings to climb this Ladder THANK YOU MUCH

COIL WIRE-------------
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#4------- -------#3

#2------- -------#7

#8------- --------#1
DISTRIBITOR

#8Cyl #7Cyl

#6Cyl #5Cyl

#4Cyl #3Cyl

#2Cyl #1cyl

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1 Answer

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hope this helps

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