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....although lately the fuel economy seems a little off (haven't crunched the numbers, just a gut feeling because I used to log it religiously for about 2 years)

Thanks for the info ekuidas, very helpful post.... Some of the same parts (and tasks) you mentioned have been replaced and carried out on my car too. So once you cleaned the CAS and the intake manifold, the problems never returned...? ...ever...? I would be pretty stoked if either of these simple ti...

vincentvega wrote:try replacing the FPR. i have heard of this fault before and I carry a spare FPR for this reason.

Hmm....yeah I think I'm going to fit a new one just to eliminate it.

(By the way, nice photo!!)

WagonJunkie wrote: I have replaced the fuel pump with a new unit but has not solved the problem (although it seemed to go up the hill a little better at first....)

My thoughts are:
1. Fuel pressure regulator is leaking vacuum and not pulling open enough at high fuel demand...??

Thanks for your thoughts so far guys... I drove the car up the hill three times yesterday. My plan was to disconnect the O2 sensor after the first run. .....but it drove up PERFECTLY three times. So if I had disconnected the O2 sensor it would have proved nothing (at least yesterday anyway...) Curre...

Yeah, I could replace the exhaust parts with stuff from the wreckers....but I would be fitting a cat. conv. with unknown mileage / abuse ...? I'll probably order a new 02 sensor anyway if I decide it's definitely an exhaust related problem. (Last time I found an online price for a new Bosch sensor f...

Yeah fuel filter changed. Old one was only about 10,000 kms anyway. ....and new fuel pump fitted. The car is still returning OK fuel mileage on the highway (I keep a log of this) which would indicate the 02 sensor is OK. The Gen 1 liberty has a fairly unique exhaust design where the cat conv. is als...

Thanks Proton. Yeah my first instinct was fuel starvation too. After I fitted the new fuel pump (and filter) I thought I had solved it because it flew up the hill the first time. It wasn't until a few days later that the power loss returned, the second time I was heading out of town. I'm tempted to ...

I have been doing some more reading....and there is plenty of posts out there in "internet land" that describe this issue and failed O2 sensors and toasted cat. converters.... I put a new O2 sensor in the car about 25000 kms ago (doesn't mean it hasn't failed...) Does anyone have any experience with...

I had the same issue (although mine wasn't completely seized) I bought a bearing from a bearing shop (duh?) and then paid a workshop $10 to borrow their press. It went right in , no worries. I fitted a new belt at the same time. 20,000 kms later it's still good....but I have had to re-tension the be...

G'Day, I have a strange problem with my '93 Liberty & I'm hoping someone might have some ideas about the cause...? (I'll admit I haven't searched the forums much because the problem is so strange and specific I doubt there will a post with the same scenario / problem...) The car is an AWD '93 Lib. w...