2F sputters and misses after warm (1 Viewer)

[MCox]

Hey All,

My engine has began to sputter and miss after the engine is warm. After the engine runs for 15 to 20 minutes is when the trouble begins. I have changed the coil with new Toyota part and took the igniter apart and reapplied heat sink grease. Everything looked good. ???

See video:



Any advice would be great.

Thanks so much!

 

[John McVicker]

Great looking truck. How about your fuel filter??

 

[OSS]

Hook up a vacuum gauge to the engine. Betcha there’s a vacuum leak (sounds like it).
One source could be the EGR valve not sealing tight (if you still have it).

 

[1911]

Great looking truck. How about your fuel filter??

The first thing I would check/replace.

Does it idle any better if you pull out the choke half-way or so? If so, then suspect either the fuel cut solenoid on the carb is bad, or the "emissions computer" that controls it.

 

[micruz60]

The air cleaner has a couple of vents uncapped.

 

[Spike Strip]

Crappy desmog = Crappy running engine.