My 95' engine has 160,000. It used to start instantly with a quick turn of the key. I replaced the fuel water separator filter and primed it. I bleed all injector lines. After a lot of time spent, the only way to start the engine is to keep the starter engaged for 5 seconds to 10 seconds and when its cold, I need to repeat this 4 or 5 times. I visually checked the fuel shut off while having someone turn the key. It appears to be working, although I'm not sure if there is a delay when my person turned the key. Once it starts it runs fine.
This has been going on for weeks. Now about a week ago, my ignition switch isn't functioning like normal. When I let off the starter my airbag and brake lights in the dash stay on as if power is still going to the starter. When I shut it off there is a 2 or 3 second delay before the engine stops. Good thing my stater is a lifetime guarantee. Please help, I desperately need my truck for work.

 

Viably inspect the rubber fuel lines going into the fuel filter. They get weather checked & it causes them to suck air into the system & the lift pump will lose prime.

You may have to wedge a mirror under them & use a flashlight to see the bad hoses. They're in a real bad PITA place to get to under & around the intake & below the master cylinder brake booster by the firewall.

The ones on my 95 were bad & I had to replace them. It got hard to start & I could smell fuel, but had no apparent leaks.

As for the electrical. you're on your own there, but I'd start with the switch assembly.

Good luck

Ramruff

 

By far the most common hard start problem is when the 5/16" x two foot hose in red below sucks air.
Suction leaks can suck air but not leak fuel, just looking doesn't always work.

 

Great picture Infidel !

That would be the one.............Changed mine out probably 12 years ago & still remember what a PITA it was !

Ramruff

 

Here is Joe G's old fuel write up. Still good info to keep on hand.

http://www.cumminsforum.com/forum/94...m-writeup.html

 

Had that issue with my VW as its suction fed from the tank to the pump, used Viton rubber on that- does anyone ever use Viton for the CTD's?

 

What you really have to watch out for is if hose is compatible with biodiesel.
You may not have BD right now but eventually all diesel fuel will have a percentage.
Viton is compatible with BD.
I use this> http://www.mmimarine.com/mmi/index.p...em=&cat_id=146
This marine hose is very heavy duty, probably will outlast the rest of the truck.

 

exactly, its a mess- Oregon started at B-5 and labeled all the pumps in the state B5 but then rose it up to b10-B15 in the metro area- iv seen a few 2009 vw's eat a DPF already as VW has a strict B0 requirement on 2009-2011 years - VW voided the warranty on my friends brand new TDI as he admitted fueling up in Oregon- no problems yet on his. I think the first 2008-2010 DPF duramax engines squirted a shot of fuel on the exhaust stroke on #8 for its re-gen mode and the Ethanol in the bio washed the lube oil off of cylinder #8. so my father in law's $60,000 truck eats a quart of oil every 5k now.
Ok, im off my soapbox now.... oh- and thankful im running a 12v that would burn hot road tar for fuel.