Dodge Automatic Cleaning
Q: I purchased a '95 Dodge Ram 1500 5.2-liter with 62,000 miles, and I don't know if the four-speed automatic transmission has been serviced previously. A friend advised that, if I change the fluid now, and if it hasn't been serviced in the past, I might do more harm than good by dislodging sediment and debris. I am fairly experienced in automotive matters, and I have heard this before from other people. However, it just seems like an old wives' tale to me. I would appreciate your opinion. Incidentally, I'm not having transmission trouble. I just want to service it properly.
A: I've heard the same stories, but have yet to see it proven. If you do a careful job of replacing the filter, while cleaning out the pan and removing the gasket thoroughly, it shouldn't be an issue. Also, 62,000 miles on your Ram isn't an astronomical number. If it were double that, I might be more concerned. Some folks don't realize that by simply dropping the transmission pan, you're not replacing anywhere near all the fluid in the unit. A large quantity is held within the torque converter, various pistons, servos, and cavities. Most fully equipped shops use a system that splices into the transmission-cooler lines and pumps in the new fluid while it pumps out the old. This does a much better job of replacing the entire capacity. I suggest replacing the filter and then taking it in for a complete flush. We won't tell anyone you had your fingers crossed.
Light Towing Advice
Q: I have a 2000 Honda Odyssey with the towing package (transmission cooler, hitch, receiver, and wiring). I tow a tent trailer that's within the weight rating for the hitch and van. When the van is loaded with cargo and the trailer is hooked up, the rear suspension lags too much. Without going for air shocks, as I don't want to change the ride too much, would aftermarket shocks or other suspension add-ons work better?
A:We've been getting a lot of similar questions regarding the sag in the rear while towing on some light-duty pickups, SUVs, and minivans. As always, you want to double check on the total trailer weight, payload, and combined weight ratings of your particular vehicle. If you're close or above, that's the problem. You need to lighten the load or invest in a heavier-duty truck. It's a good idea to take a look at how your Odyssey sits with the trailer off and the full cargo load onboard. Is it the trailer causing the sag or the heavy load in the back of the van? If it's sagging without the trailer, you may want to install air-adjustable shocks. They're relatively inexpensive and won't affect the normal ride if used properly. Simply add air pressure when needed to bring the rear ride height back to normal while hauling a full cargo load. Then release the pressure after the cargo is removed to eliminate any change from your original factory ride. Any rear-spring replacement or modification will have a permanent effect, and standard shock absorbers have no effect on a vehicle's ride height. Now, as in many cases, if the sag in the rear is caused by the tongue weight of the trailer load, there's another route to follow. First, be sure that the trailer's tongue weight is correct. It should be approximately 10-15 percent of the total trailer weight. If not, the trailer content must be redistributed and/or other trailer modifications performed. Once you've determined you're safely within all the vehicle specifications, it's time to install a weight-distributing hitch assembly (see previous Q&A). If you take a look at your owner's manual in the towing section, you'll see that Honda recommends the use of a weight-distributing hitch when the total trailer weight exceeds 1850 lb, along with the use of a sway-control device above 2000 lb. Manufacturers of these types of towing accessories include Draw-Tite and Hidden Hitch.