94 4.0L Startup Bog (After Running - Brief Stop)

[idahorally]

So I purchased a 94 Ranger Splash 4.0 a few months back, and have since been replacing minor things here and there as issues or quirks pop up. One that has been consistent, and not remedied with any of my minor fixes so far is as follows:

Cold start regardless of how long the truck has been sitting is flawless, initial drive also flawless. After parking and turning off the engine briefly (to say go into the store, or a restaurant, etc) the startup is rough. It has the initial rev-up as you would expect and then bogs way way down, almost to the point of completely stalling if I don't feather the gas pedal a bit. It will catch up a little bit, but will continue to idle roughly until I begin moving. Once I start going, almost immediately the issue ceases and the pickup runs without a problem again.

Thus far the items I have replaced that I was hoping may pertain to the issue:

1. Dry rotted and cracked Ram-Air Tube with an all aluminium intake/cone filter.
2. IAC Valve
3. Plugs, Wires
4. Fuel Filter

Any ideas where to look next?

 

[rumblecloud]

Welcome to the forum!

Have you pulled any codes yet?
I have a 94 4.0 as well. If you took the MAF out of the loop that may create an issue, But I'm not nearly as knowledgeable as the next person who will respond.
Regardless, pulling the codes will help. OBD1 not expensive and most of the auto shops will do it for you free - I'm sure you already know that.

Oh and pics of your truck and the engine bay would be a good just for the heck of it.

 

[idahorally]

MAF is still in the setup, the intake does not bypass it. The issue was there prior to the intake swap too, it’s been present since I bought it.

I haven’t pulled any codes no, the check light hasn’t ever come on. I suppose I should pick up the ODB just to have it.

I’ll grab some photos of the engine bay tomorrow when it’s daylight.