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My case the rubber grommet and plastic elbow hardened and became so brittle, I gave up and got replacements, then tried again with the replacements on hand, broke both pieces into several pieces trying to get it out and put in the new pieces. New grommets does wonders to reduce the amount of...

My 2.5L (the 4.0L with 2 cyl lobbed off) had the entire rear of the engine wet with oil and got all inside the bellhousing, when the changing the clutch the rear main seal area was dry. In my case, it was the Valve cover gasket, it just barely leaked around the sides/front, but leaked like a...

Sold! Was up for sale for 3 weeks in central PA, no bites. I bring it down to Southern Maryland, put it on a lot with for sale sign at an Air Station I work at, and it was sold within 24 hours.

I forgot you had a Renix system, the Chrysler EFI system is adaptive, if the Renix system has an O2 sensor, then likely it is adaptive as well, but I don't much about Renix, I'm assuming it works basically the same as most EFI systems. So you need to run your motor through several conditions...

Yep, looked just like my pictorial, and looked like the same approach I took. One big bead filling it in as one big puddling bead with one pass, then grinding down to get it close, finishing with filing to get it straight and true.

I could be wrong, but I suspect the anti-rattle springs that clip to the pads helps prevent these low spots wearing into the brake rails. My XJ didn't have the anti-rattle springs on the pads when I bought it, and had deep wear in the rails. Arguably NOT lubing the rails and pads during...

This is very true. Electricity seeks ground, you wouldn't think the electricity would drain through the plastic body, but it does, and a battery will go dead fairly quick if leave it sit on concrete. Have it up on a shelf. When a car battery goes dead, you reduce its life, they are designed...

If it's the steel tube exhaust manifold, welding works better than on cast iron. The big problem with the steel tube manifold is the long runners for the two out cylinders, the rapid heating and cooling causes rapid expansion and contraction that bends the exhaust manifold back and forth, that...

Ahhh, in my rush to make a joke, I didn't read it well. Valve cover gaskets tend to fail, oil will leak out if it does. That could cause some smoke if it burns, might have been doing for a while, you only noticed when you swapped injectors. When I used a fel pro gasket, it didn't fit well...

Eroded plugs, i.e. gap has increased from spec, will effect emissions and power, dirty really doesn't make any difference, but if its really filthy, oily, wet, that indicates other problems that need to be fixed. As well, arguably enough foreign matter coating the plugs could short them instead...

No, don't smoke while swapping injectors! ;-) I couldn't resist, the way you titled the thread, that was the first thing that came to mind. lol Smoke after idling for a minute or two is often valve stem seals. The high vacuum of idle will suck oil past weak seals in the valves and its builds...

The proper way to bleed the clutch is to have the slave cylinder rod fully compressed inward, then open the bleed valve, closing it before letting up the clutch pedal. But, the system is designed to gravity bleed (I think, NOT positive) so if everything is mounted correctly and you have enough...

The Return line is usually the line running from the steering box to the reservoir, the supply line usually runs from the pump to the reservoir. On some PS systems, the reservoir mounts on the pump itself, so the only line would be the return line. Usually the return line is the narrower one as...

Plus, if we're right, and even if we're wrong you need to fix those exhaust leaks, NOT only will you pass emissions, you probably get a little more power and gas mileage out of your motor. Cracked exhaust manifolds throw EFI systems for a loop.

As well, welding exhaust manifolds are usually only a temporary fix. The thermal stress in exhaust manifolds is just too great, the weld usually just cracks again in a short time. Especially cast iron exhaust manifolds, cause welding cast iron "properly" is very difficult and most people don't...

Make sure you have the correct PS fluid, but I think all the XJ had a pretty low PS fluid standard, i.e. just about any PS fluid on the shelf would meet it, just don't remember what the spec is at the moment. I've been using ATF+4 as my XJ PS fluid, although NOT specifically recommended for...

My brother had a cracked exhaust manifold on his YJ 4.0L, it did exactly what you describe. The exhaust pulses in the exhaust manifold, because of valve overlap, you can get some vacuum as well. So a crack in an exhaust manifold or the exhaust close to the exhaust manifold, it will suck in air...

Yea, all the speculation about the PCM thinking its in overdrive, etc.... means nothing. Overwhelmingly likely, if he just troubleshooting by dropping in a similar PCM that is NOT for his vehicle/engine, its barely adapting and working in some conditions and the highway speed is outside the...

Someone correct me if I'm wrong, the XJ never had any electronic transmissions, they were all hydraulic. As well, an electronic transmission would have its own ECU, which the PCM would talk to, or at least be connected to. Usually the only thing the PCM would control in the trans is the torque...

Ummm, sorta true, when the motor is cold the computer operates in open loop, all it does is ignore the O2 sensor feedback. It will also set a much richer A/F ratio, which is needed for a cold motor until it warms up. The O2 sensor is ignored for two reasons, 1. its NOT accurate at all until it...