Kind of explains alot, but too bad I bought the MAF cleaner first. Oh well. I can still use it.

Well the TPS went in, it did not fix the issue, it idles so low it almost stalls. The throttle reaction is more instantaneous and it doesn't shudder now until it hits about 51 or 52 MPH.

However it seems to accellerate in stages now. I think the TPS was bad but wasn't the cause of the issues by itself. The check engine light keeps coming on and indicating a Cyl 8 misfire. I'm going to try swapping the injector with cyl 6 and see what happens I think.

 

Pulled Injector number 8, the one that keeps coming up in the computer, I swapped it with cyl 4. Whiel it was running, we pulled cyl 4 several tiems and there was a VERY VERY VERY slight change SOMETIMES. If it was running sort of smooth it would get a little bit rougher, but not much. Yank ANY other injector plug and that engine vibrated like a vibrating bed at a cheap
Las Vegas motel. I think we have a winner folks. So tomorrow off to the wrecking yard if open and here come some injectors(I hope).

 

Awesome!

 

Check and clean your IAC valve.

 

Did the same with mine, JB welded a penny on the door, then painted it same color as door, can't even notice it.

And maybe you ARE getting 10mpg.

 

 

I paid my dollar to get in.

 

No idea what is going on with this thing, dropped in the injector, same issues. Funny thing is I pull the wires from half the dang injectors and there is no or minimal difference, half the others and it starts running rough. I'm about to drive this thing off a cliff for the insurance money. This has not been a very positive first jeep experience.

 

Appears to run rough warm or cold, and when slowing down as it gets close to a stop it jerks a little like it's overpowering the brakes with the lope of the engine(no it's not warped disks I know exactly what those are and feel like, this is totally different)


I'm interested what this is too since mine does the same thing.....I have brand new pads and rotors on it.


RIZ

 

Google "5.9 plenum gasket" and see what you find.

 

Looking at that now. So I have had a bit more time now to pay attention to what is going on here.

So the rough idle APPEARS to be because it's idling too low. It has 2 lines before the 1K RPM line. When it's hovering near the upper line which I'd say is the 750RPM range, everything appears to be fine. Most of the time it's down near the lower line. It's rough, it's jerky, the power steering jerks. Explains alot of other issues, not no idea what is causing it yet.

Now at moderate throttle acceleration, today it started misfiring. Decent throttle but nothing even the most **** retentive cop would give more then a cursory glance at. Still falls off at 45MPH unless you stomp it in which case it pulls over it but misfires.

Now if you give it a leisurely amount of throttle to take off and just kind of hold it there, it's like it's struggling to find out where it's guts are and then it just finally starts to pull and then a few seconds later it pulls harder. If you keep going like you normally would to get up to road speed about 35MPH, it's almost like you can feel the power is fluctuating, not severely but just enough to notice if you are paying attention.

Now I'm off to read some of the results of that Google search. Tomorrow I have to help a friend out with his car, disconnecting the battery in a 96 Intrepid as he doesn't know how to undo a battery clamp(yeah yeah I know it's pitiful he even Googled it and couldn't figure it out), and while i'm at it he has a code reader I'm gonna see what cylinder is misfiring.


Wow what a PITA. I'm not the original owner of this vehicle of course, and it's out of warranty, but I have a who slew of lawyers thanks to my job that I pay 14 bucks a month for, and I'll get them to make Chrysler pay for the repair of the defect in design, if that is indeed it. I don't feel like doing that big of a job right now. Especially since that intake manifold looks rather heavy, and I have a bad back.

Regardless of swapping injectors it is still Cylinder 8 that is misfiring.

 

I remembered today about the little trick that was listed to check if that gasket is bad, to start it up and hold a piece of paper over the oil cap. Well it sucked right up against it. I think we have a winner/loser. Winner as in finding the issue, loser as in DANGIT, that's time/dough I don't have.