Fuel Supply cutting out - Page 2 - JeepForum.com
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post #16 of 21 Old 08-21-2011, 05:11 PM Thread Starter
crazy8x4o5
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1978 CJ7 
 
Join Date: Apr 2011
Location: Fort Polk
Posts: 120
back to the filter issue, i just have a single inline filter right before the carb. Just took this pic to give a better idea

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post #17 of 21 Old 08-21-2011, 09:45 PM
SBpunk
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2004 WJ 
 
Join Date: May 2011
Location: Enid
Posts: 463
I had the exact same problem. This is how I troubleshot it. Read the last post. Good luck

http://www.jeepforum.com/forum/f8/fu...-hope-1250233/
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post #18 of 21 Old 08-23-2011, 05:36 PM Thread Starter
crazy8x4o5
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1978 CJ7 
 
Join Date: Apr 2011
Location: Fort Polk
Posts: 120
I'm thinking my fuel tank is fuel of crud. before I got the jeep the PO let it sit for about 5 years. once I get a chance to drop the tank and verify what is the best way to flush the tank out?
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post #19 of 21 Old 08-23-2011, 09:22 PM
afgd1
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1984 CJ7 
 
Join Date: Apr 2009
Location: durango co
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older cjs and engines dont like additives, esp ethanol, take off top fuel line crank engine, see if fuel comes out, ck if coming out past fuel filter , now big thing if carb has filter in line check it too, cjs need to have all carbs tuned, and clean, others parts to this problem could be the air lines i had to change out charcoal canister and most all air lines ck for cracks even the smallest crack can screw with carb i also put regulator in line i think fuel line runs 5-7 psi with carter carb its not so critical other carbs seem to need it hope this helped i also have to clean carb about every 2500 miles just cus of fuel we have here colorado, a good carb cleaner seems to work good change filter too aleast 2 times a year
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post #20 of 21 Old 08-24-2011, 01:08 PM
Mudr83
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2016 JK Wrangler 
 
Join Date: Oct 2008
Location: MI
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check your fuel lines where they change from rubber to steel ( that connection is above the fuel tank ). I had the same symptons that you explained and found that i was sucking in air at that connection. Quick fix was putting 2 small hose clamps on it. 2 years and the problem has not came back.
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post #21 of 21 Old 09-18-2011, 12:01 PM Thread Starter
crazy8x4o5
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1978 CJ7 
 
Join Date: Apr 2011
Location: Fort Polk
Posts: 120
finally found time to drop the tank. the outlet line was dry rotted. the inside of the tank was spotless.
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