fuel in coolant

[travis L]

i think i have fuel in my coolant. it sorta smells and feels like diesel. i replaced the cap the other day and tried to bleed the air out, but to no avail. it keeps puking out of the bottle, so im thinking it could be diesel. how would i go about checking this out. and what should i do first.

 

[Bugman]

Water is heaver than diesel so you should be able to see fuel floating on the surface of the coolant tank.

If you do have fuel in the coolant the first suspect would be the injector cups.

 

[OBS-Addiction97]

You will have to pressurize the cooling system to inspect for leaks.

 

[travis L]

if it is the cups what all will i need to replace

 

[ghohouston]

The injector cups. Youre pretty much gaurenteed that's your problem. Its up to you whether or not you just replace the one or few that are cracked, or do all 8. Pull all injectors out, pressure coolant system up to 15-16 lbs, take a flashlight and mirror and look into each cup. If you don't see coolant pissing out of any of the cups, squirt soapy water into the cups one at a time, and look for the bubbles.

 

[ghohouston]

Sometimes if the fuel has been in the ciolant long enough, and especially If the truck has been driven and gotten hot with fuel in the coolant, some coolant hoses may need replacing. Also a good idea to replace the injector o rings while the injectors are out

 

[Bugman]

If it is and odds are that it is the injector cups and you plan on doing the job yourself there is a kit sold by Rosewood Diesel Shop that has everything that you need to do the job.

 

[travis L]

thanks for the help guys i guess im going to be doing that here soon

 

[travis L]

Does anyone have a step by step directions to replace the cups. i have no idea how to do it and can't afford to take it to a shop.

 

[Bugman]

Check out YouTube they have everything else.

You will need the special tools that are available from Rosewoods that I posted in another post.

 

[Bugman]

In case you haven't checked yet or someone else comes upon this thread here is a video from YouTube on replacing them. It is on 2001 but our trucks are the same.

http://www.youtube.com/watch?v=Ck1hQEunB-o

 

[travis L]

i watched the exact video and a few others.

 

[ghohouston]

Pretty simple job. Drop a penny in each cup to keep the metal shavings out of the cylinders, tap the cup, install a bolt same size as tap, and you can use a slide hammer on the drivers side at least, or make a "plate" with a hole through it for the bolt, so it sits on the head or rockers, and you can then tighten the bolt up, and shim it once it bottoms out, and eventually, the cup will pull out. At least that's how I've done the cup jobs.

 

[travis L]

what size tap is it, im thinking about buying the tool havent decided yet

 

[ghohouston]

Ill have to check at work tomorrow. You could probably figure it out through google, but ill leave that to you.

 

[travis L]

started changing the cups and i cant get the last injector out on the passenger side. that box is in the way that holds the heater core or whatever. what is the best way to get it out. i was thinking taking off one of the motor mounts and jack that side of the engine.

 

[ghohouston]

You should be able to finagle it out without removing anything else

 

[travis L]

finally got them all changed and now i cant get it started. what now?

 

[ghohouston]

Keep cranking, and bleeding the schrader valve. Tons of air in the fuel and h.p.o. system

 

[travis L]

i kept cranking this morning, and bled the fuel lines. when the battery was dieing down and cranking slower, it started cranking faster. I am afraid i lost compression.