Symptoms Once I paid the man and drove ~15 minutes home, I noticed that, after a stop, it was taking off in what feels like second gear. Anyways, it was advertised as having a bad transmission and I already had another one for it just sitting around. If you are at all unsure about this job, by all means, find a reputable pro to do this work for you. Would be open to any suggestions! If the solenoid tests good or a replacement didn't help, you may have a bad throttle control cable or a broken snap ring. If the problem persists, you can have a professional run it through a smoke test to be able to identify any leaks in the system.
I was going to take a picture but my wife was cleaning and threw it in the nasty trash and I'm not digging through it. It has gone on for ever and will continue. Check under the hood and look at your vacuum lines for good condition and seals. Please inquire for estimated return freight on core. Once the whole snapring is gone, you will loose reverse and also engine breaking in lower gears. Replacing the solenoid isn't an easy job, but it doesn't mean you have to go to a professional.
Buying a used A500 transmission may save you money. You'll experience little to no downshifting at highway speeds or dropping off those speeds. That's a great suggestion, thanks Eric. We will let you know if we do. Well it still runs at least. Without at least a shift improver, a big cooler frequent fluid and filter changes, and adjustments, an automatic is a boulevard cruiser.
The main issue is taking off from second gear maybe third? Also, don't be a dick, no matter the other person's jeep preferences or or mods. Bad fluid will appear as very dark, nearly black and will likely smell burnt. I've dropped a few tranny pans before so the job doesn't intimidate me nor should it! You may be able to patch and repair them with high heat tape or shrink wrap. The transmission is working fine so I wonder what it is. I didn't have any black sludge in the pan.
The shifts are controlled by the valve body by conventional shift valves for 1-2 and 2-3 upshifts. It is highly advisable to seek out a professional to do this job. Org The Jeep Grand Cherokee Owners Community JeepGarage. After draining your fluid, run a magnet through the old stuff and check for metal shavings or large chunks of debris. Do you have a code reader that can display live data? It could give an indication from where it came from. At slow speeds, the Jeep otherwise runs fine and the problem may be very intermittent.
I then cleared the codes, and took it for a spin. There is a section of pigtail with a harness on each end going up into the engine bay that the sensor hooks up to, I guess I could check pin to pin on that for continuity? But after that first complete stop, and every take off after, it's sluggish and has little pickup. With this done the Mopar trans will last a good long time. If you could drive it 5 or 10 minutes and then see what the O2 reading is, that'll be a better check. The same holds true if your throttle transmission control cable goes out. I would not worry too much about that.
But I think I'll install an aftermarket cooler and temp gauge and see how it goes. I'm also gonna replace that O2 sensor, but I'm gonna do that first and see what happens with the tranny, just for shits and giggles. I even checked it this morning and there's nothing on the bottom of the fluid in my drain pan. Perform a smoke test if unsure. This transmission is electronically controlled using a governor pressure solenoid to vary the governor pressure. You'll get there eventually though.
All electronic trans are prone to problems, just check out some of the other makes forums or walk through a dealer service department. As long as still some part of the snapring is in place, you will not see any strange behaviour from the transmission. My guess is that would go the other way, making the pressure higher if it has any effect at all but I don't know enough about how those things interact on your specific trans. When the Jeep is pulled over or sitting for a few, the fluid drains back into the pump and the cycle repeats itself. It stil can be an other snapring though.
This transmission comes with the standard 18 month unlimited mileage warranty and has the option to double that to the 3 year extended warranty see extended warranty category. They all have their horror stories. If the readings are really erratic and drop to zero when you hit bumps or anything weird like that, I'd suspect a broken wire or bad connection. I guess it was still worth it all as an experiment. So what does a No Hassle Warranty really mean? I would probably do a good check for vacuum leaks too though before opening up the trans since a leak will certainly cause a problem of some sort even if it's not with the trans. Now you do have over 200,000 miles on this vehicle, this will make it a better vehicle, but you may end up getting the transmission rebuilt or replaced when all this is said and done.
The O2 sensor and trans are down around the same place so could be the wiring going to them is in the same bundle and damaged. Yeah, any automatic transmission work goes to a specialist for me. I was starting to wonder if the factory cooler lines or radiator were clogged. This can last for a few minutes and then return to normal. Pieces of the snap ring will likely be sitting right on top. I don't know if a vacuum leak could cause the governor pressure to be low. When your transmission fluid is low, the pump may be exhausted of any fluid to continue circulating.