It's an auto, can feel that it pull back when changing gear, esp from 1 to 2 gear. recently replaced 2nd hand transmission, think need adjustment, anyone knows how to do the adjustment or some other suggestion?
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Re: 1 to 2 gear not smooth...
I agree with jdawson....I think that what you're dealing with there is a defective box....The flush idea is a very good one....It's advisable, even when you have a new box, to flush out an auto box at least once every year, to keep the operation smooth and wear to a minimum....I can't recommend any specific chemicals, as where I am, we don't have any available.... A good meathod to determine if it's over-due, pull the dip stick out and smell the oil...if it smells burned it's over due....
The method we use here in Africa, is to use the same ATF (Automatic Transmission Fluid) we'll be using to run the vehicle with during normal running....drain the fluid and refill with new fluid....If you're in a place where you get a replacement filter, change that too.....To do that you'll have to drop the oil pan....You'll see the filter mounted under the valve body assembly, It may be fastened there with two or three (or more bolts....Keep in mind that, as with all auto engineering, cleanliness is a top requirement, more especially if you open an auto box....Re-assemble the filter housing and re-fit the pan...After refilling with new fluid and fitting a new filter (if possible) Next step is to chock the wheels, apply the brake and then with your foot kept ******* the brake pedal, start the engine and change into each gear...Count to three for each change from P move into R..N..D..Over drive off (if fitted)...3...2...and then up again until you complete the cycle....Do the same thing again two more times and then switch off the engine wait about twenty minutes to cool and then drain and refill again....If the oil smelled very burned at the start, it may be a good idea to replace the filter a second time....
....If that doesn't work I think you'll need to take the box to specialists to have it re-built....It sounds to me as if the valve body needs attention and if that's so you'll need special tools and a lot of experience....
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Re: 1 to 2 gear not smooth...
I DO NOT THINK THAT IT IS GOING TO BE AND ADJUSTMENT ISSUE, BUT IT IS POSSIBLE. THE FIRST THING THAT I WOULD RECOMEND IS TO HAVE A COMPLETE TRANSMISSION FLUSH PREFORMED. MAKE SHURE IT IS A FLUSH AND NOT AND DRAIN AND FILL. RECOMEND FINDING A SHOP THAT USES BG PRODUCTS. BG HAS THE BEST CHEMICALS ON THE MARKET.
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Hello You will need to have an experienced technical drive this before attempting any repairs, but my gut feeling is that you will need to rebuilt the transmission. That takes many special tools and a high degree of skill and training and is not something that really can be done at home with common hand tools.
First check your transmission fluid level before doing any test. Make certain this is not a speed vibration from the wheels by shifting the lever into 2 instead of D and reaching the speed you are having vibration at (as long as it is safe and you are not over reving the engine). While at that speed shift into D and let the transmission go into it's normal gear ranges and take note if the vibration occurs. I've seen (felt) this type of vibration many times on vehicles where the fluid is low. Adding fluid to the proper level solved this issue on some but on others there was existing transmission wear that this would not help. This doesn't mean the entire transmission is bad as the valve body inside the transmission fluid pan can sometimes cause this. Swapping out the valve body can be pricey but not as pricey as a new transmission and sometimes cheaper then having a used transmission installed.
\'93 Hyundai Lantra, automatic transmission has trouble changing up from 1st to 2nd, it tends to rev on a bit, clunks once or twice before changing to 2nd, other gears seem to be ok. Oil levels are ok and have recently replaced the transmission oil (yes the correct oil was used)
you need to replace clutch pack for that gear can be ordered seperately from parts store or dealer if you want to save money call peach street auto recycling at 1800-365-2341 for a warrantied used one! also might be time for change trans filter and fluid filter could be slightly clogged but I lean towards clutch pack I replace these alot on Hondas
STOP Forcing gear change, watch the Engine RPMs and shift accordingly, HOMBRE's are as good as the operator's. Hombre's have dash shift indicators which illuminate when it's time to 'shift' and not before, This has nothing to do with gear oil either. If you've drained it, you best fill it immediately and make sure it's ample level. The heat these gears sustain in is inceredible, cooling lubricant is essential. Here's a tip, while engine is OFF, ignition key is engaged, dash is illuminated, depress clutch peddle, keep it depressed and walk through all gears with gear shift, shifting should be smooth and unpeded, including reverse. If resistance is experienced at one or more gears, gear alignment is off as a result of inproper gear shifting while driving. Continue to drive vehicle just shift slower until clutch needs replacement then do an entire drive shaft upgrade. It worth it, it's great truck.
Admitting a lack of familiarity with your car, this is often caused by an improper adjustment of the transition point from one gear (or clutch) to another.
1st is still not disengaged when 2nd is engaging but this is normally an adjustable point.
I've also seen this caused by the use (or adding) of the wrong fluid; the beasts are fussy about that sometimes.