Vapor vent tube in sender.

[nealpellecchia]

Where does it connect to in 93 Silverado 6.5 td

 

[nealpellecchia]

Shop manual shows three small tubes next to the much bigger vent that connects to the filler by the gas cap. The two smaller tubes are supply and return. The slightly bigger one is suppose to be a vapor vent hose connection.

 

[nealpellecchia]

Ok no answer. If I disconnect the fuel pump relay will that tell me how well the ops is working?

 

[ak diesel driver]

Start it when cold and then shut it down, you should hear the LP continue to run until it loses oil pressure. Otherwise a fuel pressure gauge is your friend

 

[nealpellecchia]

When I trip the relay I hear it. Not running. I thought I'd trip it while running and see if there's a change.

 

[nealpellecchia]

Where does it connect to in 93 Silverado 6.5 td

I have a hose coming out of the frame near engine. It has a a small hanger with a fastener hole in it by the end. I blew into it a little but then restricted. I guess it is the tank sender vent. No cannisters and don't see where it attaches to. I have to drive with loose gas cap or it'll backfire . I assume it's clogged now. Anyone know about it? Shop manual doesn't show

 

[Duvall]

I have a hose coming out of the frame near engine. It has a a small hanger with a fastener hole in it by the end. I blew into it a little but then restricted. I guess it is the tank sender vent. No cannisters and don't see where it attaches to. I have to drive with loose gas cap or it'll backfire . I assume it's clogged now. Anyone know about it? Shop manual doesn't show

Im not sure it will help.
I have a 93 with the bed off. I can get you a picture tomorrow.

 

[nealpellecchia]

Im not sure it will help.
I have a 93 with the bed off. I can get you a picture tomorrow.

Terrific!!

 

[Duvall]

The only lines I have to my tank are.
Feed line
Return line
Vent to the fill neck
and of course the level sender wires

 

[Stoney]

Wish my tank looked that clean..lol

 

[nealpellecchia]

Ok, so the third is the electrical. Beautiful picture, hard to enlarge. Thank you very much sir

 

[nealpellecchia]

No easy by hand.

 

[MrMarty51]

I believe that the actual tank venting is through the fuel tanks cap. Makes Me wonder if someone has installed a gas fuel tank or sender into Your truck.

 

[Twisted Steel Performance]

Just save the trouble and leave the cap loose ...

 

[nealpellecchia]

I leave it loose. Easy to steal fuel though . That vent line is so big how could it ever get clogged? New diesel cap will cause sluggish performance and then backfire if tight . With flashlight and mirror I can get a glimpse of top of tank I think. I'll send shop manual picture as well

 

[nealpellecchia]

1993 shop manual.

 

[nealpellecchia]

Are their two return lines???

 

[nealpellecchia]

One for each bank?

 

[nealpellecchia]

The only lines I have to my tank are.
Feed line
Return line
Vent to the fill neck
and of course the level sender wiresView attachment 57814

Ok, mine is like yours no third tube like shop manual diagram.