SenorNoob's '88 Ext Cab "Build"

[BlackBII]

Regarding your intermittent issues - have you checked the wiring connection at the crank sensor? It makes a good 90 degree curve or so coming from the plug. Many years ago I had a 4.0 that would stumble every now and then and it was because the crank signal was getting interrupted ever so slightly by some slightly broken wires and a corroded/greasy connector/terminals on the crank sensor and plug. It sounds like you have covered about everything else!

 

[SenorNoob]

Wiring to it is tight. somewhat concerningly so. My thoughts too at this point. It has to be random ignition faults. Like the crank sensor isn't consistent. I really thought it'd have code though.

211	(M) Ignition PIP signal was erratic or missing – Ignition Systems

 

[Uncle Gump]

I'm not so sure about the stack of nuts and washers you got on those u-bolts.

I would run the nut down with its washer and trim the u-bolts.

I'm thinking the "stack" of stuff leaves opportunity to flex and loosen.

 

[SenorNoob]

Gotta have at least one nut or get a die and thread the u-bolts farther. It's shitty looking but it's not going anywhere.

Believe me I'd much rather have had the correct size u-bolts. I couldn't find them. (Of course now the exact ones I needed are in the top 5 of a Google search... U-bolts)

Gonna leave that there for when I get money again.