My 1994 4.0 starts and runs fine but when its warm... and I shut it off let sit for a bit and restart it sounds and runs like its missing and as soon as drive it a bit, it soothes out and all the symptoms go away. Coil pack, EGR, all vacuum lines look good? Any Ideas... has recent spark plugs/wires. No codes that tell me any thing, except some BS codes that its had for years.

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1994 Ranger XLT, 4.0, 5 speed. I drove it of the lot of Sierra Ford in Duarte, CA in 1994 with only 14 miles on it. 300,000+miles and running good....
MR K.

clean IAC, MAF and TB. maybe new air filter too

What is the TB? The MAF, And IAC been changed before but I can take them off and hit them with some brake cleen... and see what happens.

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1994 Ranger XLT, 4.0, 5 speed. I drove it of the lot of Sierra Ford in Duarte, CA in 1994 with only 14 miles on it. 300,000+miles and running good....
MR K.

TB I'm guessing is timing belt, but it's just a guess haha

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1998, 4.0 liter 2WD, XLT, no sweet wheels or tires yet but hoping to get some, 99,000 miles, Automatic, no lift or upgrades but hope to get some soon. Black head lights and tail lights.

I think I figured it out a couple of minutes after my post...Good Luck with that Timing belt on a 4.0 LOL!... The "TB" was cleaned when I had the entire top of the engine off to change the Inlet Manifold Gasket last year. But I guess I can take it off and take a cleaner can to it.

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1994 Ranger XLT, 4.0, 5 speed. I drove it of the lot of Sierra Ford in Duarte, CA in 1994 with only 14 miles on it. 300,000+miles and running good....
MR K.

I dont think its a timing belt since it should have a timing chain (I dunno about 4L OHV, but 4L SOHC have timing chains)

When I have some time next few days I will take the Throttle body, the MAF, and the IAC off and clean them. But I have had trouble with all of these in the past and none of which caused a miss fire when warm on restart they just caused a rough idle.
The only things I can think of - are Coil Pack, Defective spark plugs/wires. Especially since when I drive it it goes away.
Oh yeah I just put a new air filter in it.

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(I dunno about 4L OHV, but 4L SOHC have timing chains)[/QUOTE]

Timing Chains! I don't think my 94 would have made it to 300K on a belt system... LOL

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1994 Ranger XLT, 4.0, 5 speed. I drove it of the lot of Sierra Ford in Duarte, CA in 1994 with only 14 miles on it. 300,000+miles and running good....
MR K.

So I cleaned my IAC MAF & TB over the weekend... It idles a little better but it still has a little miss fire i can hear. It is now throwing a bad CID circuit code that it never had before... Any Ideas?

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1994 Ranger XLT, 4.0, 5 speed. I drove it of the lot of Sierra Ford in Duarte, CA in 1994 with only 14 miles on it. 300,000+miles and running good....
MR K.

Don't every one rush to help now!

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1994 Ranger XLT, 4.0, 5 speed. I drove it of the lot of Sierra Ford in Duarte, CA in 1994 with only 14 miles on it. 300,000+miles and running good....
MR K.

"TB" throttle body im guessing

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2003 Ranger Edge ... crashed

2011 sport 4x4 with a little modification

TB? just sprayed it with Carb cleaner... I just put a new 2.25 exhaust and flow master ahh much better than the recommended 2.5. Now I can hear a pinging in the engine like when my spark gap is off... I think I will put new plugs and coil pack in next. I might get a new throttle body and injectors.

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1994 Ranger XLT, 4.0, 5 speed. I drove it of the lot of Sierra Ford in Duarte, CA in 1994 with only 14 miles on it. 300,000+miles and running good....
MR K.