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95 dodge cummins 12v takes awhile to start after sitting

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Old Jul 11, 2006 | 11:19 AM
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kleinergti1's Avatar
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From: dubuque,ia
95 dodge cummins 12v takes awhile to start after sitting

my 95 dodge diesel after sitting for more then a day just started not starting unless i use gas pedal and once started it idles rough for about 30secs then it runs great like any other time. the engine is all stock except exhaust.

any help is appreciated.

kleinersforeigncar@gmail.com
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Old Jul 11, 2006 | 11:23 AM
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Lary Ellis (Top)'s Avatar
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Check your fuel return lines at the injection pump, they rot and cause air to get into the system.
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Old Jul 11, 2006 | 11:27 AM
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Dido what Larry said and while your replacing the rubber return line you might want to look at all of the lines I did my return line and it fixed the problem but looking at the lines I will be back under the truck sooner than later!!
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Old Jul 11, 2006 | 04:00 PM
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Yup change all rubber fuel lines and youll likely be good as new. Makes sure you use diesel rated fuel hose and not the gas rated stuff.

You can get it here:

http://www.fostertruck.com/dodge/
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Old Jul 11, 2006 | 04:13 PM
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From: Douglas County, NV
Replace them all the way to the tank.

My truck did the same thing. Started out doing it after pulling a load and then sitting overnight (pointed uphill). Then it started doing it whenever it was parked overnight pointing uphill,
Numerous users said to replace the lines. I had replaced the short rubber pieces many times but I went ahead and did the whole thing with marine diesel fuel lines. I didn't see any areas that looked bad but after the swap out I have not had an issue. It's not a walk in the park but neither is being stuck with your boat in the water.

Peter
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Old Jul 11, 2006 | 08:10 PM
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From: dubuque,ia
that is exactly what mine did pulled a car on trailer and parked it overnight up hill. came out next day and must floor it and crank at same time which i am sure does not do the motor any good.

so tomorrow i will check the fuel lines out and go from there. this is my first dodge diesel so i am new at the dodges i specilize in vw tdi's.

thanks for all the help
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Old Jul 11, 2006 | 08:22 PM
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From: The Great White North
Originally Posted by Sleigher
I didn't see any areas that looked bad but after the swap out I have not had an issue.
Thats it exactly, the holes are pretty much microscopic and you cant see them - but it lets air in and you lose prime. In most cases the bad lines dont leak fuel either so you cant see where they are bad.
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Old Jul 11, 2006 | 10:42 PM
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Same symptom but the fix was as simple as the fuel filter backing off/unscrewing and allowing air into the system.
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Old Jul 12, 2006 | 03:49 AM
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From: The Great White North
Originally Posted by troy900ss
Same symptom but the fix was as simple as the fuel filter backing off/unscrewing and allowing air into the system.
Even so - if he has a 95 and hasnt replaced the fuel lines - its time. Call it "preventive maintenance". Plus, its much nicer to do it now than in the dead of winter.
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Old Jul 12, 2006 | 08:03 AM
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From: Wetumpka, Alabama
Arrow

Originally Posted by kleinergti1
unless i use gas pedal...
Uhh...Don't you mean the DIESEL pedal ??

Anyways, what size are the rubber fuel lines ??
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Old Jul 12, 2006 | 09:34 AM
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From: Montana
Originally Posted by Katmandu
Uhh...Don't you mean the DIESEL pedal ??

Anyways, what size are the rubber fuel lines ??
Supply is 3/8", return 5/16"
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Old Jul 12, 2006 | 10:15 AM
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From: Douglas County, NV
Just wondering.

As I look back at my fuel line replacement I'm wondering if the problem wasn't with the fittings that attach to the tank and not the lines themselves.
The fittings were not tight on the barbs they are those funky push and clip types that can be very difficult to remove if you can't remember how. I didn't find a single place, in the lines that I removed, which looked even slightly bad. Over half of the length is steel.
Anyhow, if I had it to do again I would first consider re-doing the ends where they attach to the fuel tank.

Peter
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Old Jul 12, 2006 | 10:47 AM
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From: Tacoma, Wa
When replacing the fuel lines removing the starter helps access. This is a good time to install LarryB's upgraded contacts. This is either do it now fix for $35 or replace the whole starter later.

The main problem on my 96' turned out to be the soft line from the fuel preheater to liftpump. The line had massive dryrot. It let lots of air into the system but no fuel would leak out.
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