Picked up my first Jeep a couple weeks ago.
2001 TJ Sport 4.0 Manual 6 Inline
It ran great for the first 2 weeks, then started to feel a little rough. Occasionally slippy after a gear shift or brake to gas, but the most prevalent issue was that when I would brake, it would lope real low on the rpms, then often just sputter out completely. If I kept the brake hard to the floor it was a bit better, but when I let my foot off the break altogether? It was fine.
The below had been done just prior:
The rpm issue started getting worse, then the engine started misfiring in multiple cylinders, a variety of evap codes, and a catalytic converter code. Occasionally it does throw white smoke for about 2 to 3 minutes, once or twice a week...
So last weekend, I did the following:
Took it for a nice long ride afterward and it was running great. Much better then when I scooped it up, and the *whispers* engine light turned off for the first time since I've owned it.
I was excited! Perhaps, I'd successfully made it a happy enough Jeep to then keep me happily cruising for the summer!
Thought I was in great shape, then on my way home from the lake, I couldn't drive more than 60 mph on the highway without it feeling like it hopping down the highway. Not side to side, not losing control, I'm not sure how better to explain it. I ended up pulling to the side of the highway for a few minutes, then just kept my spread the rest of the way home. However, it never threw any new codes and the engine light is still off.
I have noticed that the front differential is leaking a bit, so I picked up a new seal for that and plan to replace that tomorrow.
Thoughts or suggestions on what else I should try?
I'm thinking O2 sensors. After that I might have to take it in if I want to enjoy it this summer.
2001 TJ Sport 4.0 Manual 6 Inline
It ran great for the first 2 weeks, then started to feel a little rough. Occasionally slippy after a gear shift or brake to gas, but the most prevalent issue was that when I would brake, it would lope real low on the rpms, then often just sputter out completely. If I kept the brake hard to the floor it was a bit better, but when I let my foot off the break altogether? It was fine.
The below had been done just prior:
- New Evap hoses
- Coil pack injectors (platinum autolite plugs, I took those out though as you'll see later)
- Injector wire connectors
- Rocker arms
- Push rods
- Valve cover gasket
- Evap system pump
The rpm issue started getting worse, then the engine started misfiring in multiple cylinders, a variety of evap codes, and a catalytic converter code. Occasionally it does throw white smoke for about 2 to 3 minutes, once or twice a week...
So last weekend, I did the following:
- New Battery Terminals
- Campion Copper plugs
- Checked and topped of all fluids.(did not do the oil as the previous owner JUST did, but used synthetic)
- Coolant appears to be green, so I didn't put the 50/50 HOAT I had picked up. It was mother's day and wasn't really in a position to keep messing around in the driveway.
- There are a few hoses that have some pretty shifty connections. I think they are vacuum hoses (please be kind, this gal here is brand new to Jeeps).
- In fact, I found one that was zip tied this past weekend, put a clamp on that. Then another with a ton of black electric tape on it, took that off and put another clamp on that. I'd like to replace some of those connectors/elbows, but they look like they might be a pain to find.
Took it for a nice long ride afterward and it was running great. Much better then when I scooped it up, and the *whispers* engine light turned off for the first time since I've owned it.
I was excited! Perhaps, I'd successfully made it a happy enough Jeep to then keep me happily cruising for the summer!
Thought I was in great shape, then on my way home from the lake, I couldn't drive more than 60 mph on the highway without it feeling like it hopping down the highway. Not side to side, not losing control, I'm not sure how better to explain it. I ended up pulling to the side of the highway for a few minutes, then just kept my spread the rest of the way home. However, it never threw any new codes and the engine light is still off.
I have noticed that the front differential is leaking a bit, so I picked up a new seal for that and plan to replace that tomorrow.
Thoughts or suggestions on what else I should try?
I'm thinking O2 sensors. After that I might have to take it in if I want to enjoy it this summer.