1986 mazda b2000, 181,000 mi

[quote:9c93af97aa="bond343"]truck starts and runs great, but then dies out of nowhere. it will always start back up, but it usually takes a five to ten minute wait. it is completely eratic, sometimes i drive it and have no problems, and sometimes i am sitting on the roadside wondering how far the truck will go before it dies again. i have replaced the whole ditributor and plug wires, and the truck still runs the same.[/quote:9c93af97aa]

Try the EGR open it up and clean the carbon, then comeback

EGR has been checked and is fine. fuel line and filters have been checked. also, it is not vapor lock.

[quote:5a3a35a770="bond343"]EGR has been checked and is fine. fuel line and filters have been checked. also, it is not vapor lock.[/quote:5a3a35a770]

Try the fuel pump relay if it has one-also check the actual fuel pressure when it dies out it shouldn't lose all the pressure within 10mins.Check your fuel pump connector-

Is your truck and auto or a 5spd?

changed the hole distributor? you mean the whole thing not just the cap and rotor right?

Check the coil for leakage and corrosion on the bottom of it.

HAs a new gas tank been installed recently?

Cosmo...Mazda TEch

truck is a five speed, whole distributor changed, no new gas tank, have tried pouring small amounts of gas into carb when truck dies to no avail.

Well then take a look at that coil.

I am also wondering what the condition of the sending unit in the tank is. Sometimes the sending unit gets small pin holes in the lines that cause the fuel pump/ carb to suck air into the lines causing problems.

Cosmo....Mazda TEch

[quote:22bbce77ab="bond343"]truck is a five speed, whole distributor changed, no new gas tank, have tried pouring small amounts of gas into carb when truck dies to no avail.[/quote:22bbce77ab]

, have tried pouring small amounts of gas into carb when truck dies to no avail.

Your missing spark-otherwise it will fire up when you prime it.

Check for power at +pos term. of coil-if present-now crank engine over and while a voltmeter or test lite at the -neg terminal-VM or testlite should be fluctuating/blinking-if not check the ignitor-if it is blinking check the rotor,cap, and coil wire and the coil primary/secondary resistances.

Also it might have an external resistor that's inline with the primary circuit.

HTH-Good Luck!