Truck runs fantastic, then multiple misfire the next day?

[tunedbytuna]

I guess I missed the part where you already did cap and rotor. My truck is tbi, so idk about the fuel pressure, sorry.

I do think they should be closer to 60psi, a leaky injector can cause misfires too. Do a bleed down test, before replacing the cap. Bleed down will show if you have an injector that’s leaking.


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[Tech-GeeK1500]

Good advice, thanks!

 

[Tech-GeeK1500]

Well, symptoms have been low fuel pressure, misfiring, stumbling, raw fuel smell, and black soot filled exhaust. I think I found the problem...

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