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02-08-2011, 12:05 AM
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#1 |
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Registered User
Join Date: Feb 2011
Location: San Diego CA
Posts: 12
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truck ran like it was running out of gas
I was headed up a hill and the truck acted as if it were running out of gas, the gage does not work (on order from LMC) I made it to the top, coasted down the other side and luckily made made it to a gas station, but it only took 10 gallons. I am thinking, filter, pump or vapor lock. any suggestions will be appreciated.
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02-08-2011, 12:10 AM
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#2 |
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Registered User
Join Date: Feb 2011
Location: Antioch, California
Posts: 13
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Re: truck ran like it was running out of gas
Could be a bad n.i.s. in the carb... usually caused by a clogged or missing filter. Just my thought...
__________________
As for me and my Chevy, we serve the Lord. Joshua 24:16 |
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02-08-2011, 12:13 AM
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#3 |
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Registered User
Join Date: Feb 2011
Location: San Diego CA
Posts: 12
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Re: truck ran like it was running out of gas
After this, it ran ok, then twice again it did the same, I slowed to below 60 and it recovered. Thank you for your help, I will pull the filter in the morning.
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02-08-2011, 12:16 AM
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#4 |
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Registered User
Join Date: Jan 2003
Location: arizona
Posts: 213
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Re: truck ran like it was running out of gas
nice looking truck...ever checked the condition of the fuel pickup sock in the gas tank?
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02-08-2011, 12:18 AM
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#5 |
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Registered User
Join Date: Feb 2011
Location: San Diego CA
Posts: 12
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Re: truck ran like it was running out of gas
No I haven't, great idea, I had a vette once and pulled it, it was trashed. Thanks for the comment on the truck.
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02-08-2011, 12:21 AM
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#6 |
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Registered User
 
Join Date: Nov 2010
Location: Big Bear Lake, CA.
Posts: 291
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Re: truck ran like it was running out of gas
Bad gas, it`s happened to me.
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02-08-2011, 12:29 AM
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#7 |
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Registered User
Join Date: Dec 2010
Location: Valdosta Georgia
Posts: 58
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Re: truck ran like it was running out of gas
Sounds like the fuel pump.
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02-08-2011, 12:30 AM
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#8 |
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Registered User
Join Date: Feb 2011
Location: San Diego CA
Posts: 12
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Re: truck ran like it was running out of gas
it was running ok till the hill, then I put more gas in it (10 gallons) and it ran ok for a while again, then it happened again. I just got the truck last week and it is only the second time I put gas in it, I am running the mid grade gas, 89 octane, Mobil gas. I will have the sending unit out around the end of the week so I will look at the tank, Thank you for your help.
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02-08-2011, 12:32 AM
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#9 |
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Registered User
Join Date: Feb 2011
Location: San Diego CA
Posts: 12
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Re: truck ran like it was running out of gas
I think that the fuel pump is reasonable, and easy enough to change, that and the filter, Thank you.
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02-08-2011, 05:52 AM
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#10 |
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Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: truck ran like it was running out of gas
is the tank properly vented? when you remove the cap if there is a "wooshing" noise you have a venting problem
__________________
71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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02-08-2011, 10:53 AM
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#11 |
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Junior Member
Join Date: Dec 2006
Location: Southeast Missouri
Posts: 2,436
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Re: truck ran like it was running out of gas
Lot of good info already.
Check the rubber hoses, one is under the cab, the other is on the suction side of the fuel pump. Check the filter in the carb, if you have a Q-jet. It does not sound like a vapor lock, they normally happen at times of low fuel flow. Good luck.
__________________
'67 Chevy C-20 short stepper - build complete, 454/SM-465. '75 C-30 Single Cab DRW-350 small block/NP-435. '77 GMC-6500 Dump Truck, 427 Tall Deck. '92 GMC K-3500 Duallie, 454/4L80E. |
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02-08-2011, 11:12 AM
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#12 |
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It'll Buff Out!
Join Date: Apr 2007
Location: San Diego
Posts: 603
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Re: truck ran like it was running out of gas
All good info, I just went through this in the last 6 months.
started with fuel filter in q-jet make sure there is no filter between the tank and pump this will cause vapor lock replaced fuel pump replaced fuel cap replaced rubber lines rebuilt and tuned q-jet Adjusted valves replaced sock and sending unit. mine was trashed also (pic attached) after all this I pulled a vacuum check on the engine it looks like my valve springs are done. I hope yours is an easier fix. what part of SD are you in? mine started acting up on the 67 grade heading up to Poway.
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"Instructions are just another mans opinion" Become a Supporting Member http://67-72chevytrucks.com/vboard/payments.php Man Card Rules http://67-72chevytrucks.com/vboard/s...d.php?t=634550 72 Chevy Cheyenne Super 400 LWB Last edited by So.Cal.Super; 02-08-2011 at 11:16 AM. Reason: pic |
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02-08-2011, 12:14 PM
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#13 |
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Registered User
Join Date: Sep 2010
Location: Olympia, WA
Posts: 736
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Re: truck ran like it was running out of gas
My money is on the fuel pump. I had an 67 El Camino that would sputter and spit whenever a hill with decent grade was involved (Vantage hill Eastern Washington).
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02-08-2011, 12:16 PM
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#14 |
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Registered User
Join Date: Feb 2011
Location: San Diego CA
Posts: 12
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Re: truck ran like it was running out of gas
Thank you, I will definitely be looking into that. It will be nice to have the old truck running properly!
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If you want a job done right, lower your standards! Have a great day, Scott 71 Custom 20 |
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