Search results

Obviously 300,000 miles is a lot, so it could be new engine time. It does not feel like that is the issue, because it is not burning significant oil. I have not done a compression test.

Thanks everyone for the responses. I wanted to close the loop on this. I did pass smog (barely) in the end, but the issues are not completely resolved. Here is what I did: New CAT New NTK O2s New injectors New fuel pump New air filter These parts made it pass, but just barely. The fuel...

Thanks guys! I'll try the loud drive tomorrow! Because it sounds fun. I'll also try O2s and TPS to see if that makes any type of change. I'll let you know what I find before replacing the CAT. O2 Sensors were Denso. Installed April 2018. CAT was Walker CARB compliant also April 2018.

I know that this thread is pretty old now, but I wanted to share the conclusion to this episode.....first trip down, I took some cerium oxide polish, made by 3M. I used a buffer on an electric drill. After working it for hours, and not making progress I took it to a local detailer, and the...

I am stumped on this one, I've tried searching but cant seem to find symptoms that match mine. I hope someone can share some wisdom to get be back up an running! 99 XJ 4.0 mostly stock Federal emissions 290k miles well maintained Replaced CAT and entire exhaust including oxygen sensors 2...

Thanks for all the replies and suggestions....very helpful, and yes it is quite different being in Brazil than back in the States. The back story is that I drove this vehicle from San Diego back in 2001, and parked it in a barn out on a Cocoa farm after I was done with my travels. I recently...

I have an 89 Cherokee base model 4.0, AW4 that was stored in a barn for 15 years. I've just got it running and am now fixing some of the necessary cosmetic stuff. Current problem: the barn was home to fruit bats, which pooped all over the windshield. This appears to have etched the glass to...

I used a mixture of gasoline and lacquer thinner with a small stiff brush and a pick. It took ages. Thinner cut the solids better then gasoline, but evaporated too fast to work with, so I alternated between gasoline and thinners. Unrelated question: the barn where I stored it had fruit bats...

Guys, I just wanted to post an update.....the jeep finally drives!! AND I think it shifts properly. The fuel residue was really nasty stuff. Not only did the tank get a good cleaning, I also had to scrape the residue from the inlet ports on the block, and the inlet manifold. Thanks for the...

Yeah, neither had I until now. I had 4 bent push rods all on the inlet valves. Valves were stuck so badly that I had to tap them out with a punch. Exhaust valves were all fine. On inspection, they were caked in black tar like stuff on the top surface and stem, this was the glue binding them...

One more question: I was planning to reuse the valve stem seals. They feel supple, and I haven't been able to locate a local source for new ones. Has anyone done this? Did it cause any problems? Thanks!

So I had a chance to do spend some time on it over the past weeks. It turns out that the fuse for the transmission controller was very corroded and was likely causing the transmission problem. I am not 100% sure about this because not long after starting it up, I started getting a nasty noise...

Thanks for all the great responses guys! Very much appreciate it. I haven't had a chance to work on it recently, work hijacked my schedule for the last few weeks. Great tips on the transmission, I ill take your advise and flush it with TransX. I am hopeful that it is a low/bad fluid, and...

The transmission does engage, but as the revs keep rising the forward movement does not translate to much power to the wheels. I checked the fluid cold, and its a little low. Next I was planning to drop the pan, change the filter and give it some fresh fluid.

I have been lurking on the forums absorbing the collective wisdom on the forum. I have a 89 Renix era XJ 4.0 engine, AW4 Transmission, D30 front w/ disconnect axle, and Dana 35 rear. 141000 miles. The vehicle has a ton of sentimental value to me and I have started the process of getting her...