Hole in the smog line that leads across the gas tank.

USA car its sold world wide and no to have same smog parts. ever, not even California versa's FED.
well the service manual covers that. (usa)
but the problem is it is not one page. it is many
this is covered in the chapters of all things vacuum
smog EVAP,? runs from fuel fuel tank and to engine.yes Canister Vent Solenoid
P04xx or P14xx dtc scan errors. do tell em.
then brake chapter, brake booster, yes.
if engine has FPR, the fuel chapter FPR vacuum. YES
EGR vac solenoid, YES.
HVAC climate control in the CAB dash?YES
the online manual zero unified vacuum pages.
just by topic above.


some USA cars 2000 have hood sticker for VAC,
open hood look up and under EPA smog sticker there.
3.0L V6

buy the OEM real manual used from ebay
or go here read here

https://eautorepair.net/Marketing/Default.asp

This is a problem caused by a defective fuel pressure check valve at the outlet of the electric fuel pump inside the gas tank. When this valve fails it allows gas to drain back to the tank from the filter and fuel lines, this creates a lean fuel condition and that can cause hard starting. There are reasons but this is the most common one.

the upper rad hose will lead to t stat

fuel pump is located in the gas tank . to change it you need to drop the tank. two metal straps holding it in.

you have to drop the gas tank .The fuel pump is mounted to the top of the tank.

If you are needing to remove the gas tank to replace it, then you will need to empty the tank if you are able. You can buy a pump to siphon the gas for about ten dollars. Put a jack under the tank and jack it up to the tank just enough to barely put pressure on it. After that unbolt the two straps that hold it up. Remove the straps and slowly let the tank down. Try your best not to break the gas lines. Let it down far enough to see the gas pump. If it has a metal ring with little tabs on top of the pump. Take a hammer and a screwdriver and carefully tap on the tabs of the ring and move it until it releases the pump. If it is a snap ring holding the pump it, you will have to buy a special pair of pliers to get it out. A snap ring looks like a washer that has one gap in it, with two little holes on either side of the gap. If you are only wanting to remove the fuel pump, it is actually easier to remove the bed. To do that, undo the taillights and pull the wires through the bottom of the bed, and undo all of the bolts holding the bed down. If you do have to remove the tank, removing the bed will still make it easier, as well as greatly reducing the change of breaking a fuel line. good luck!

None. Yes I said it right, None. Belive it or not in 1976 trucks were not required converters, air pumps and could run on leaded or unleaded gas. Man I've been doing this too long and I'm getting old.

place some kind of support under tank remove the strap bolts lower tank till you can reach the fuel lines & wires on top the tank mark & disconnect all then lower tank all the way out also try to do this with the tank empty

Inside of the drivers side frame rail. About midway down the frame. Depending on production date, it should be plastic and have 2 fuel lines in one end and one fuel line on the other end. The retaining nut for the filter is on the outside of the frame rail. Hope this helps !

do you have spark?