could use some help on my jeep, 96 cherokee 4.0, auto, jeep runs good, but sometimes when i shut it off for 10-20min. i can take off and then its like i have no throttle it will pop a couple of times and run great after that ive replace tps,crank s, cam s, coil, full tune w/wires, cant find any vac leaks. HELP ME PLEASE

 

Could be trash in your fuel tank. After sitting still, settles down and gets into intake. Once you start moving the fuel line starts picking up better fuel from swishing around. Perhaps changing the fuel filter if it's built up in trash as well. Just a thought.

 

did the filter with the tune. thanks

 

Still could be sucking up trash,....don't know. Have you tried Seafoam?

 

How quick does it start on a cold morning?

 

You could have a leaky fuel injector. When that happens, as the vehicle sits, raw fuel drips into the cylinder. Then when you start the engine, it runs rough and "stumbles" for a bit until the excess fuel is burned off.

How many miles on these injectors?

You could test this with a fuel pressure gauge and a clamp and the ability to use both......

 

used seafoam, starts right up, it seems to act up once i start going, more so in 2 gear jeep has 150000 0n it

 

I'd check your fuel pressure and see how long it takes to leak down after you shut it off.

 

check ur up stream o2 sensor, its very common. easy way to check is unplug it an drive around for a while