gumbiegumbie Posted February 16, 2017 Share Posted February 16, 2017 (edited) After my truck sets for a few days you have to start it with ether. Once you start it you can start it easily the rest of the day and maybe even the next day. The truck was smoking a little bit too much leading me to believe the injector tips we're not sealing good and I had some more I wanted to put in any way and that fixed the smoking but not the cranking. The line between the heads isn't leaking and the line from the front head around to the block isnt leaking so I'm thinking it has to be the check valve letting the fuel rail drain back to the tank. Am I on the right track? Oh yeah, it's a 2001 etech. Edited February 16, 2017 by gumbiegumbie Content Quote Link to comment https://www.bigmacktrucks.com/topic/48775-hard-starting-after-parked-for-a-few-days/ Share on other sites More sharing options...
MACKS Posted February 16, 2017 Share Posted February 16, 2017 I would first verifie that lack of fuel is the problem,before u start it after a few days sitting crack a line at the pump and while someone cranks it over see if you have fuel. Quote Link to comment https://www.bigmacktrucks.com/topic/48775-hard-starting-after-parked-for-a-few-days/#findComment-361899 Share on other sites More sharing options...
gumbiegumbie Posted February 16, 2017 Author Share Posted February 16, 2017 If fuel is there, what would you look at next. It's cranking like when you run out of fuel or change a filter without filling it up. That's why I think it's fuel. Just trying to figure out whatsomething letting it drain back. The little line coming from the head is on the tank side of the check valve so how does that work? Quote Link to comment https://www.bigmacktrucks.com/topic/48775-hard-starting-after-parked-for-a-few-days/#findComment-361907 Share on other sites More sharing options...
mrsmackpaul Posted February 16, 2017 Share Posted February 16, 2017 look at the exhaust when you are trying to start it, does it have any smoke if little to no smoke then fuel is lacking Quote Link to comment https://www.bigmacktrucks.com/topic/48775-hard-starting-after-parked-for-a-few-days/#findComment-361908 Share on other sites More sharing options...
Hobert62 Posted February 16, 2017 Share Posted February 16, 2017 Something simple like a bad oring on fuel filter? Quote Link to comment https://www.bigmacktrucks.com/topic/48775-hard-starting-after-parked-for-a-few-days/#findComment-361913 Share on other sites More sharing options...
MACKS Posted February 16, 2017 Share Posted February 16, 2017 A tiny pln hole in a fuel line would let the fuel drain back. Quote Link to comment https://www.bigmacktrucks.com/topic/48775-hard-starting-after-parked-for-a-few-days/#findComment-361914 Share on other sites More sharing options...
gumbiegumbie Posted February 17, 2017 Author Share Posted February 17, 2017 I have a davco fuel filter and you can see the fuel in it so I had dismissed the fuel supply line. That might be incorrect thinking? I just changed my other 2 spin-on fuel filters and it done it before and after so not sure about the filter o-ring. I guess next I'll change all the short lines that go back and forth across the top of the motor to the filters and fuel pump and back to the block. If it sucks air when the motor is off wouldn't it be messy when it was running and had pressure? Quote Link to comment https://www.bigmacktrucks.com/topic/48775-hard-starting-after-parked-for-a-few-days/#findComment-361938 Share on other sites More sharing options...
MACKS Posted February 17, 2017 Share Posted February 17, 2017 On 2/17/2017 at 10:08 AM, gumbiegumbie said: I have a davco fuel filter and you can see the fuel in it so I had dismissed the fuel supply line. That might be incorrect thinking? I just changed my other 2 spin-on fuel filters and it done it before and after so not sure about the filter o-ring. I guess next I'll change all the short lines that go back and forth across the top of the motor to the filters and fuel pump and back to the block. If it sucks air when the motor is off wouldn't it be messy when it was running and had pressure? I've had a bag fuel line that didn't leak whin running but let the fuel drain down when not,just crack open a line before starting to see if that's the problem then go from there. I've fixed a lot of things that weren't broke in my days. lol 1 Quote Link to comment https://www.bigmacktrucks.com/topic/48775-hard-starting-after-parked-for-a-few-days/#findComment-361955 Share on other sites More sharing options...
ranchhopper Posted February 17, 2017 Share Posted February 17, 2017 I had a cracked line on my RD the one that ran around the front of the engine I had the same problem until they changed out the line then no more problem. Quote Link to comment https://www.bigmacktrucks.com/topic/48775-hard-starting-after-parked-for-a-few-days/#findComment-361957 Share on other sites More sharing options...
bts-4120 Posted February 18, 2017 Share Posted February 18, 2017 plastic return line that returns from the head back to the return line its about 2ft long and will cause this its pretty common Quote Link to comment https://www.bigmacktrucks.com/topic/48775-hard-starting-after-parked-for-a-few-days/#findComment-361986 Share on other sites More sharing options...
ranchhopper Posted February 18, 2017 Share Posted February 18, 2017 Yup that was the culprit on my truck. Quote Link to comment https://www.bigmacktrucks.com/topic/48775-hard-starting-after-parked-for-a-few-days/#findComment-361989 Share on other sites More sharing options...
Mack&Cheese Posted July 9, 2017 Share Posted July 9, 2017 On 2/17/2017 at 5:36 PM, bts-4120 said: plastic return line that returns from the head back to the return line its about 2ft long and will cause this its pretty common What is the routing of this plastic line. Which side of engine, to where? I may have a similar problem that I'm chasing. Quote Link to comment https://www.bigmacktrucks.com/topic/48775-hard-starting-after-parked-for-a-few-days/#findComment-374474 Share on other sites More sharing options...
bts-4120 Posted July 21, 2017 Share Posted July 21, 2017 (edited) sorry for the slow reply on passanger side of the motor it runs for the head down to a fitting by the unit pumps it tees back into the fuel line Edited July 21, 2017 by bts-4120 Quote Link to comment https://www.bigmacktrucks.com/topic/48775-hard-starting-after-parked-for-a-few-days/#findComment-375450 Share on other sites More sharing options...
Popular Post gumbiegumbie Posted July 25, 2017 Author Popular Post Share Posted July 25, 2017 My problem ended up being the fuel line from the secondary fuel filter over to the side of the block where it screws to the fuel rail. The cloth braid line with the makeup ends had gotten worn out from vibration and when the nut was tight on the fitting the line itself would steal wiggle inside the nut if that makes sense like it wasn't pressing the flare part up against the fitting tight and would let it suck air. Found it by pure accident when I bump the line with my hand messing with something else and seen it wiggle at that fitting and thought it was loose but the nut was tight and the line was indeed loose. Changed out that line and truck cranks perfect now no matter how long you leave it sitting 5 Quote Link to comment https://www.bigmacktrucks.com/topic/48775-hard-starting-after-parked-for-a-few-days/#findComment-375702 Share on other sites More sharing options...
ZDB Posted July 25, 2017 Share Posted July 25, 2017 Love a story with a happy ending! Glad it's fixed. Quote Link to comment https://www.bigmacktrucks.com/topic/48775-hard-starting-after-parked-for-a-few-days/#findComment-375708 Share on other sites More sharing options...
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