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05-07-2002, 09:01 PM
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#1 |
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Catchy title goes here..
 
Join Date: Mar 2002
Location: Rockwell, NC
Posts: 39,793
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fuel system
Does anyone have a diagram of the fuel system in the 67-72 trucks. Having probs with fuel going to carb, have new fuel pump and fuel line to carb.
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05-09-2002, 09:04 PM
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#2 |
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BOWTIE FOREVER
Join Date: Mar 2002
Location: Sanford,N.C. 23770
Posts: 273
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I cannot believe that there isn't one member out of 4600 that cannot answer this or give me some advice??!!!!!
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69 C-10 SHORT FLEET BED 350 4-BOLT/400 turbo upper & lower molding 65 IMPALA 2-DR 283/POWERGLIDE 66 IMPALA 2-DR hopefully 283/350 ~ CAMELTOE ROCKS ~ |
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05-09-2002, 09:29 PM
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#3 |
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I am a Referee of life.
Join Date: Jun 2000
Location: Greensboro N.C.
Posts: 13,992
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Here are some ideas of things to check.
1.Check rubber lines on fuel pump and from tank to hard line.(if they are cracked it could be sucking air) 2.Filter sock over pick-up tube in tank.You have to pull sending unit. 3.Hard lines cracked or crushed. 4.Possibly a bad fuel pump from the parts store.(I have seen it happen before) 5.Sintered metal fuel filter in carb. 6.Prime motor well.(I have had it take several times to prime a new pump) 7.Use a gas can and short hose to see if pump is pulling fuel and pushing it to carb. I don't have a diagram but these are some things I have had cause the type of problem you describe. ------------------ Deland does Chevys 68Chevy panel(LIZ) "A man and his truck,it's a beautiful thing" "I have the body of a god,unfortunately it's Budda"
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The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil" |
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05-10-2002, 09:42 PM
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#4 |
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BOWTIE FOREVER
Join Date: Mar 2002
Location: Sanford,N.C. 23770
Posts: 273
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Thanks for the input PanelDeland I appreciate it.
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69 C-10 SHORT FLEET BED 350 4-BOLT/400 turbo upper & lower molding 65 IMPALA 2-DR 283/POWERGLIDE 66 IMPALA 2-DR hopefully 283/350 ~ CAMELTOE ROCKS ~ |
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05-10-2002, 10:19 PM
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#5 |
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Registered User
Join Date: Nov 2001
Location: Fairmont WV
Posts: 304
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Check out the parts of the chassis manual I posted. I shows the most complex parts, if you need more let me know and I will try to post it.
http://community.webshots.com/user/rod_childers ------------------ Rod Childers '71 C10 Stepside
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Rod Childers '71 C10 Stepside |
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05-11-2002, 12:04 AM
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#6 |
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Between Trucks...
Join Date: Mar 2002
Location: Los Angeles, CA.
Posts: 3,830
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test the fuel pump ...
und the hose/line to the carb... put it in a bucket or gas can... crank the motor, see if the pump is working... if the pump works, try running it with the gas cap off... sometimes the vent(return) line back to the gas tank get's stopped up... if it's stopped up it'll make a "vaccum" in the fuel system...(no air getting to the tank)... ------------------ beat it to fit, paint it to match... http://www.geocities.com/maggotspawn/gearhead.html
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Beat it to fit, Paint it to match... 
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05-11-2002, 12:19 AM
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#7 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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(only '71 & '72 have return lines)
------------------ '69 G.M.C. 350/350. Trying to clean up the left over damage from the Dope-Smokin-Old-Man I've been dubbed the Longhorn Freak/Fanatic/Expert, I just hope I can live up to it. FINALLY got the HORNIAC...a '70 one ton Longhorn with a Pontiac 350/350 and lots of 'personality'. Check out The Longhorn Webite. If you need a pic posted, E-mail me at longhornmail@yahoo.com My name is Andy...not Randy...I'm in Ohio...Not Illinois...close enough? Columbus Ohio |
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05-13-2002, 11:52 AM
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#8 |
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Registered User
Join Date: Jun 2001
Location: Eastern Kansas
Posts: 488
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Thought I had a fuel delivery problem once. Changed filters, rubber lines, and fuel pump and none helped. The pickup would run fine unless under full acceleration. This problem continued for about 3 tank fulls of gas. Finally found that I had gotten some bad gas that had water in it. Dumped the tank and used Heet for a few tank fulls. Fixed the problem.
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'72 Cheyenne. AC, PS, PB, Rear slider window, tilt. Light yellow (grapefruit yellow according to new sales literature from '72) '56 Chevy short step V-8 (My dad bought it new!!) '70 Olds 442 convertible '70 Olds Rallye 350 |
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05-13-2002, 05:49 PM
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#9 |
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Senior Member
 
Join Date: Sep 2001
Location: Seattle, WA, USA
Posts: 5,817
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What kinds of problems? Are you just not getting your truck to start? Is it running rough? Hesitates? What's the symptoms?
------------------ '69 3/4 ton C20 2wd w/ 350ci/400THM and a wood bed! '69 3/4 ton Custom 20 2wd w/ ORIGINAL 350ci/4sp Manual and a wood bed (parts beast). Seattle, WA. *See pics of my trucks and project at www.webshots.com!
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'69 3/4 ton C20 2wd-350ci/TH400 '69 3/4 ton Custom 20 2wd-350ci/4sp Manual '99 2wd 5.7 Chevy Tahoe Seattle, WA. |
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05-13-2002, 06:03 PM
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#10 |
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Registered User
Join Date: Oct 2001
Location: Ky
Posts: 255
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Have you had it running before you replaced the fuel pump and line? I had a 69 one ton that had set so long the gas had gummed up the pick up line in the tank.
Herbie ------------------ hwedding56 67-CST Factory PS PB AIR Buckets SWB FLEET 350-700r4 67-SWB Step Plain Jane 350-3 on the tree 68 1-1/2 ton Dump 12' rock Bed soon to have fast68's 292 installed
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67-CST Factory PS PB AIR Buckets SWB FLEET 350-700r4 67-SWB Step Plain Jane 350-3 on the tree 68 1-1/2 ton Dump 12' rock Bed soon to have fast68's 292 installed 72 GMC 3/4 ton Crew Cab 402 BBL 400 tranny ( ok I bought it from Crews) Its one ugly long WB long bed 4 door truck!!!!!!!!! |
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05-13-2002, 09:24 PM
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#11 |
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BOWTIE FOREVER
Join Date: Mar 2002
Location: Sanford,N.C. 23770
Posts: 273
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Thanks for all the replies I appreciate it.
Ran a secondary fuel line into a can of gas, and truck started and ran fine. Have traced the problem to rubber hoses at fuel pick up tube connector at main line ( that runs down side of truck)...and gummy...
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69 C-10 SHORT FLEET BED 350 4-BOLT/400 turbo upper & lower molding 65 IMPALA 2-DR 283/POWERGLIDE 66 IMPALA 2-DR hopefully 283/350 ~ CAMELTOE ROCKS ~ |
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