mattphillips90

Story is, Ive thought for a while my slow ignition problem was caused by my check valve. Well the little priming trick has never helped an it idles a little rough at start up unless I throttle it a little. So obviously choice now is a leaking injector.

Now when I discuss leaky injectors everyone just talks about the orings that seal in the injectors but I've been assuming that the leaky injector problem I have is from the injector itself and probably needs to be replaced? Correct me of I'm wrong so I can fix the right thing.

Also I just put in a new yellowtop and starter so those aren't my issues.

Radi

Could be the Idle air controller is sticking too. Might take a look at that first before shelling out cash for injectors.

karl4x4

On fuel injected when you give a little gas, you don't actually give more gas, you give more air to the engine. I would also guess your air bypass valve/idle controller
I would also check the adjustment/condition of the Throttle Position Sensor before I replace anything.

CCKen

I agree with your assesment that you have a leaking injector because you have to depress the gas pedal to clear the intake at initial start.

It's a PITA but you can find the leaking injector by pulling the fuel rail back far enogh to expose the ends of the fuel injectors (still installed) and place some bits of paper towl , or white rag, at the tips of the injectors. Then cycle the ignition switch to RUN to activate the fuel pump. The leaking injector(s) should wet the paper towl(s) or rags(s) you have placed at the injector tips.

cruiser54

Good advice here.

Wanna try someting simple? Get a can of BG44K and put it into a full tank of gas. Drive until you're down to 1/4 tank before refueling. It could clean out a carboned up injector or 2.

mattphillips90

Thanks for the suggestions guys. I didnt think you could adjust the tps on the newer cherokees but ill give it a look.

mattphillips90

Its just a pain cause sometimes itll turn over for 7-10 seconds before it starts

cruiser54

You can't.