Recent content by Mercury

Hello! Just removed my shifter starting a clutch replacement and I noticed there's this wiring harness and the wires on it looked chewed through. Can someone tell me what these wires are these harnesses go to? 99 TJ 4.0 Manual

New compression test, in order cylinders 1 - 6: 142 155 152 172 162 158

Those old-school JLs were beasts.

That is crazy! These electrical problems are such a hassle. I think my cheapie TPS gave up the ghost. Idles high, but when I press the gas it bogs and dies. I'll be ordering a Mopar one here shortly.

Yep. Discovered this a few days ago. That's what I get for buying a cheap one.

The spark plugs were in good shape when I changed them recently, but I'll pull it in a week and see if anything is there. At this point I'm considering an oscilloscope and testing every electrical thing under the hood. I'm starting to wonder if there's something up with the harness at the...

I replaced the throttle body again, this time replacing the TPS as well, now it's running normally other than the miss. I had my fuel injectors cleaned on one of those injector rigs. They all sprayed well, just a little build up, didn't fix the miss. Only odd thing: one of the injectors...

Do you know what frequencies were causing the issue? I just wonder if you could use the sound bar for midbass instead of sub bass.

Hello! I'm looking to replace my distributor. I notice you can't find Mopar on RockAuto or Amazon, it looks like the best ones they have listed are Cardone. New https://www.rockauto.com/en/moreinfo.php?pk=12964005&cc=1431777&pt=7108&jsn=603 I could try to get a used one somewhere. What...

Hello! So, strange thing that happens intermittently. I'll be at idle, sometimes it's right after I start the Jeep, sometimes I'll have been driving for hours and come to a light. The RPMs will start to lower, around 600 or so, then they'll drop to the 300s, the engine will rev a bit and the...

Hello! I have a set of LED pods for my rear bumper. I currently have the wires run in the tailgate along the weatherstripping, but I'd like something more permanent where the wires aren't exposed. What are some recommendations for where to run the wires? The lights are controlled with a toggle...

I'm very confused about the spark plug wiring order on the Jeep distributor cap. Looking at the FSM, this should be my order: Mine is this: I'm confused because the FSM shows the screws in different places relative to the block and the different posts relative to the screws. I'm chasing...

Hello, all! I have a random misfire with no codes, 1999 TJ 4.0 manual. You can hear it, the vehicle shakes a little when it happens, but I don't have, and have never had, a misfire code. I've changed the crank sensor, TPS, chased down a vacuum leak and repaired it. Throttle body gasket...

I have what I suspect is a vacuum leak. Yesterday my vents were working normally, I rolled the windows down for about twenty minutes, then when I tried my cruise control it didn't work and when I turned my AC back on it was defrost only. I looked up a diagram for the 4.0 vacuum lines...