Originally Posted by cherokee517
This is sort of second hand account of what's going on now. I haven't driven this p.o.s. Jeep in months. Too unreliable.
I have an 05 5.7L hemi V8 and I can't believe I have actually said the words "I hate this Jeep".
Its latest issue is that you can be driving along and it decides it doesn't want to go as fast as it should be anymore. Suddenly it just drives veeerrrryyy slllooowwww and will eventually stall.
The most recent attempt to fix it was replacing main computer (and pretty much everything else electronically). I think the ECM has also been replaced.
If helpful I will get a hold of all that has gone wrong with it & what all has been repaired/replaced. But it's pretty safe to say I have pretty much rebuild it electronically and mechanically.
A while back it used to just stop running all together or would act as if it was in neutral. This was a fun little thing it like to do on the hwy. That hasn't happened in more than a yr. Sorry I forget what the diagnosis & fix was for that.
I need to get this resolved asap. Winter is coming and I need to sell it so I can go back to a WJ. This is my 3rd Jeep (previous ones were WJs & I loved them). This piece of crap is the biggest thorn in my side. I cannot afford this headache another day.
What sort of mileage? Have any non-electrical parts been replaced? From what I have seen/heard mainboard failures on the Jeep are pretty rare. I would much more likely start with checking the simple parts that are known to wear out than entire boards.
Some things that could cause your concern:
Wires (2005 have coil packs AND wires)
Crank and Cam Position sensors (I know you said one of these may have been replaced)
Transmission fluid level and quality of the filters (return and main)
Throttle body (inspect and clean/replace if necessary)
These are all cheap and easy fixes that many perform as routine maintenance at certain mileage, and may not throw a DTC to point the repair shop in the right direction (though many would).
Could be a whole lot of other things that aren't as common (and maybe some common ones that I've forgot...if so, I am sure others will chime in).