Engine/Transmission (1998.5 - 2002) whats causing this to happen

[gottorq33]

swapped out injectors couple of weeks ago now when I drive around town turn truck off and restart its fine but after driving long distances such as hour or 2 on highway and turn off for a couple of minutes and get in to resart and it takes about 5 to 10 seconds of cranking first before it starts and its only during this does it do it then if I turn it off a again and start right back up its fine I am puzzled

 

[AKAMAC]

Sounds like you are bleeding air back into system. Have you noticed any leaks? Did the injectors slip all the way down past the transfer tube? ( I had to lightly pry #6's tube out a little to get it to go all the way down after I noticed that after torquing down the holders 6 was a tad higher. )

 

[gottorq33]

I did have nothing but problems putting these in never had issues before why only after long distance and I dont see any wet spots but smell diesel at least think I do

 

[YEEHAW]

Check the engine oil to see if you have diesel in it.

 

[PC12Driver]

Sounds like you may need to crank down on the fuel crossover tubes a bit more (the 19mm nuts). Or maybe the tip of the crossover tube may have been nicked during the install (not popping the tube out the side when removing/inserting the injectors). Either way it sounds like you're getting a bit of air in the lines.



The injectors are sealed at the bottom from the cylinder by the copper crush washer and at the top from the engine oil by an o-ring. Any fuel leaks would occur in the middle where the crossover tube hits the injector body, and the fuel that had leaked out will flow out the back of the head into the fuel return line to the fuel tank. Therefore, fuel will never mingle with the oil (that's a Ford/Chevy issue; when they leak, they just leak into the engine oil). You may see some fuel weeping around the 19mm fuel line nuts, but you might not see any leaks at all if they stay in the fuel return passage.



When you say that you had nothing but problems, what troubles did you have?

 

[gottorq33]

problems were #2 leaking and #3 may need new connector tube because that did happen to me with pushing injector in

 

[PC12Driver]

The fit between the connector line and the injector is pretty critical. Considering that they're under about 14,000 psi or so and they're only sealed by compression (from the 19mm nut), any little nick would cause a leak. I'd try backing off the 19mm nut 1/4-1/2 turn and then cranking down on them again. If that doesn't do it, you may be in need of some crossover tubes (slightly less than $100 for a set, I think).

 

[gottorq33]

when I was putting in the #3 injector it would not go in andx I tapped with hand a few times so I pulled out inkjector and saw connector tube was still sticking out into cylinder for injector I actually put a scratch in the injector from the connector tube so maybe I messed it up I can replace all them just by removing the lines right? I should not have to remove injector is this correct I have changed 3 times before and never had issues just curious would this be causing any performance issues till I put new tubes in

 

[PC12Driver]

If it scratched the injector I'd say that one's probably tweaked.



I think you could get by with just removing the lines, but if it was mine I'd loosen the injector retainers, swap out the x-over tubes, hand tighten everything, torque the injector retainers to spec, then torque down the fuel line nuts. That way everything gets nice and seated before the big torque is applied.