Hi Josh,
It doesn't take long to cook an engine. If you could hear
preignition clicking before you stopped, more than likely the oil is
burnt and started scoring your bearings. Also in the five minutes of
time the heads begin to warp letting the coolant begin to seep into the
crank case instantly destroying the best of oils, and their lubricating
qualities. You gambled telling them to replace the oil pump, but I think
you knew it was cooked, when you didn't tell them it was doing the
Stanley thing.
God Bless America, ßill O|||||||O
http://www.billhughes.com/

Josh wrote:
>
> It's been a rough couple of weeks. Two weeks ago, my engine overheated
> because unknown to me, my radiator was leaking like a sieve. I had
> topped it off a couple of weeks prior, but when I opened the hood, the
> tank was empty. So, after a trip to the dealer and $400 later, I've
> got a new radiator. Since it was in the shop and I was due, I asked
> the dealer to go ahead and change the oil for me.
>
> Driving home the other night, I got off the highway and while waiting
> for the light to turn, my oil pressure dropped down to 0, and the check
> gauges light came on. So, I pulled over, let the Jeep cool down and
> checked the oil levels, and everything was fine. After starting it
> back up and driving for a bit, I stopped at a stop light, and the
> pressure dropped again. Stick 'er in neutral and rev, and up the
> pressure goes.
>
> So, I took it back to the dealer and asked them to poke around. The
> ascertained that my oil pump was bad and replaced it. After replacing
> it, though, I was still losing pressure. They hooked a gauge up to the
> block, and pressure was hovering below 10.
>
> They are recommending a new lower block at this point because they
> figure the bearings must be bad. I'm having a real tough time with
> this because I have really babied this Jeep. Oil change with Mobile 1
> Synthetic every 3000 - 4000, maintenance, you name it. Could it be
> something else or am I screwed? It only has 129,000 ( mostly highway
> ).
>
> HELP!!