leversole Posted August 12, 2011 Share Posted August 12, 2011 Went to warm up the truck, everything normal, after about ten minutes, it acted like I pulled the fuel cutoff out slowly and it finally died, not quick but slowly...after a minute or so, cranked it and it tried to start but obviously only had a little fuelll It was getting dark, so all I did was unscrew the primer and give it a few pumps, which resulted in plenty (I think!) of fuel...the primer felt like it was full...So the question is where to start...Tonite I will read all I can on fuel injectors...buy new filters tommorrow,then wait for some good advice from the forum...Thanks Quote Link to comment https://www.bigmacktrucks.com/topic/20152-fuel-problemdammit/ Share on other sites More sharing options...
HeavyGunner Posted August 12, 2011 Share Posted August 12, 2011 Bummer, hope you get things figured out quickly so you can get back to work. Good luck Quote The problems we face today exist because the people who work for a living are outnumbered by the people who vote for a living.The government can only "give" someone what they first take from another. Link to comment https://www.bigmacktrucks.com/topic/20152-fuel-problemdammit/#findComment-83565 Share on other sites More sharing options...
mowerman Posted August 12, 2011 Share Posted August 12, 2011 ya,,man hopefully its just a line,or fuel filter...good luck.bob 1 Quote Link to comment https://www.bigmacktrucks.com/topic/20152-fuel-problemdammit/#findComment-83569 Share on other sites More sharing options...
Pawel Posted August 12, 2011 Share Posted August 12, 2011 Howdy!Sometimes there's a little sieve in the fuel tank, that prevents bigger impurities of entering a fuel line. If this sieve rusts, gets clogged or something like that, funny things happen. My friend has his truck start, run two kilometers and quit. So he called for help, after some time the help arrived, they tried to start the truck, and it started, went anothe rtwo kilometers and died again. When left to sit, the fuel was sifting through the sieve and filled the fuel line. But then when the motor created a serious fuel demand, air was being sucked in through the gaskets and blocked the pump. A quick remedy would be to blow compressed air into the tank, hopefully blowing the clog out. Hard to say if it's exactly what is troubling you, but I hope it helps - good luck with it and have a nice dayPaweł Quote Link to comment https://www.bigmacktrucks.com/topic/20152-fuel-problemdammit/#findComment-83581 Share on other sites More sharing options...
Rob Posted August 12, 2011 Share Posted August 12, 2011 You might also go ahead and replace any older rubber interconnecting lines that are in the fuel system too. These tend to deteriorate from the inside with the ULSD fuel accelerating the degradation of the rubber compound. These fuel lines can collapse internally and this can and will restrict, or block fuel flow.Rob 1 Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment https://www.bigmacktrucks.com/topic/20152-fuel-problemdammit/#findComment-83583 Share on other sites More sharing options...
Freightrain Posted August 12, 2011 Share Posted August 12, 2011 How's the fuel filter? Mine went south on me just after I bought the truck, but it made it home............slowly. Found the filter plugged with crap. Seems they never changed it in 20 some years?I second the rubber lines, I did all mine also. It doesn't take much. Also check the fuel tank breather lines(up under the cab). If they get clogged, it will draw a vacuum and won't let fuel flow. Unscrew the fuel cap and run it. If it stays running, that's the issue. 1 Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/20152-fuel-problemdammit/#findComment-83611 Share on other sites More sharing options...
leversole Posted August 13, 2011 Author Share Posted August 13, 2011 Thanks for all the reply's...All of the lines are in good shape...I cannot believe a dirty fuel filter would bring my mighty Mack to a screeching halt! A new primary and secondary fuel filter ($20) and all is well! Now I just have to get the wheel put back together (from the King pin replacement)! Quote Link to comment https://www.bigmacktrucks.com/topic/20152-fuel-problemdammit/#findComment-83644 Share on other sites More sharing options...
rhasler Posted August 13, 2011 Share Posted August 13, 2011 If the problem persists make sure the suction line and the pickup in the tank are clean. On numerous occasions I have seen "floaters" in the tank cause intermittent fuel starvation problems. Ham and cheese sammiches, fishing bobbers, and tampons are some of the more "interesting" things I've seen cause that sort of problem. 1 Quote "Mebbe I'm too ugly and stupid to give up!" Link to comment https://www.bigmacktrucks.com/topic/20152-fuel-problemdammit/#findComment-83645 Share on other sites More sharing options...
mowerman Posted August 13, 2011 Share Posted August 13, 2011 Thanks for all the reply's...All of the lines are in good shape...I cannot believe a dirty fuel filter would bring my mighty Mack to a screeching halt! A new primary and secondary fuel filter ($20) and all is well! Now I just have to get the wheel put back together (from the King pin replacement)!that always good news.bob Quote Link to comment https://www.bigmacktrucks.com/topic/20152-fuel-problemdammit/#findComment-83648 Share on other sites More sharing options...
Rob Posted August 13, 2011 Share Posted August 13, 2011 If the problem persists make sure the suction line and the pickup in the tank are clean. On numerous occasions I have seen "floaters" in the tank cause intermittent fuel starvation problems. Ham and cheese sammiches, fishing bobbers, and tampons are some of the more "interesting" things I've seen cause that sort of problem.And here is the question that leaves me perplexed:If you find a tampon in a red dyed "off road" diesel tank, how do you know if it's a used, or new, (unused) tampon?Rob Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment https://www.bigmacktrucks.com/topic/20152-fuel-problemdammit/#findComment-83651 Share on other sites More sharing options...
leversole Posted August 13, 2011 Author Share Posted August 13, 2011 And here is the question that leaves me perplexed:If you find a tampon in a red dyed "off road" diesel tank, how do you know if it's a used, or new, (unused) tampon?RobIt's obvious...smell it, diesel has a dis "stink" tly different smell than rotting tuna!! Quote Link to comment https://www.bigmacktrucks.com/topic/20152-fuel-problemdammit/#findComment-83653 Share on other sites More sharing options...
Rob Posted August 13, 2011 Share Posted August 13, 2011 Think I'll take your word on it.So what you are saying is the "funk factor" of a prior used tampon could knock a buzzard off a shit wagon at 50 paces? Even with low doses and limited exposure times?My, should I ever encounter such a thing, think I'll just let it lay.Rob Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment https://www.bigmacktrucks.com/topic/20152-fuel-problemdammit/#findComment-83655 Share on other sites More sharing options...
hatcity Posted August 13, 2011 Share Posted August 13, 2011 And here is the question that leaves me perplexed:If you find a tampon in a red dyed "off road" diesel tank, how do you know if it's a used, or new, (unused) tampon?RobBut what if it was On Road fuel with a used one thrown in?Would you be able to convince Mr. DOT that it is proper? Quote Success is only a stones throw away.................................................................for a Palestinian Link to comment https://www.bigmacktrucks.com/topic/20152-fuel-problemdammit/#findComment-83660 Share on other sites More sharing options...
Rob Posted August 13, 2011 Share Posted August 13, 2011 But what if it was On Road fuel with a used one thrown in?Would you be able to convince Mr. DOT that it is proper?They would prolly swear it had a "funny taste".Rob Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment https://www.bigmacktrucks.com/topic/20152-fuel-problemdammit/#findComment-83662 Share on other sites More sharing options...
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