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Second Generation Legend (1991-1995)

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Old 12-27-08, 06:22 PM   #1 (permalink)
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Gear shift is not smooth (car jumps a little when shifting)

Hello,

I am new to this forum and this is my first post. I have a 1994 Acura Legend with 130K miles. The car (automatic) is having a slight difficulty changing gears. There is a slight delay in the gear shift and then the car jumps a bit as the shift takes place. I notice that before the shift the RPM increases a lot, somewhere around 2500, and I think this causes the car jumping. If I accelerate till around 1600-2000 and then leave the gas pedal, then the gear shift is much smoother. I searched for similar problems on the web and found this (different car but I think same problem): Corolla Gear Problem

I wonder if I could have the same problem, like a computer problem (ECM). Is this a common issue? I read through some posts and people have been mentioning many people experience gear shifts that are not very smooth. If this isn't normal, what could be the problem, would it be OK to keep driving it like this? Thanks
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Old 12-27-08, 07:14 PM   #2 (permalink)
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Sounds like some kind of electronic issue. Is the D4 light in the cluster blinking? That would indicate a bad VSS(vehicle speed sensor).
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Old 12-27-08, 07:21 PM   #3 (permalink)
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I already had the VSS replaced due to malfunctioning speedometer, but it didn't help to this particular problem (And D4 is not blinking).
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Old 12-27-08, 10:35 PM   #4 (permalink)
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Hey fellas. My 1994 GS has started doing that a bit recently. I have nearly twice as many miles (almost 259K). There are a couple of suggestions to smoothen the shifts. First (HIGHLY RECOMMENDED) if you haven't already have the transmission flushed and then refilled. I do mine about every 12-18 months as I do A LOT of driving in a year. Second have your transmission mounts and engine mounts checked. I had one replaced when I first bought the car with about 102K on it. They will in time deteriorate and likely that's what you have now. They absorb the inertia similar to a shock absorber on the wheels. I've been told I need to basically replace ALL of mine and the parts are relatively expensive. I was priced over $700 for them all. Ebay sells them for around $450 a set but once you add the cost of labor (unless you can do them yourself) you'll still be looking at around $600-$700. Best of sucess on your car.
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Old 12-27-08, 11:15 PM   #5 (permalink)
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Originally Posted by clb26 View Post
Hey fellas. My 1994 GS has started doing that a bit recently. I have nearly twice as many miles (almost 259K). There are a couple of suggestions to smoothen the shifts. First (HIGHLY RECOMMENDED) if you haven't already have the transmission flushed and then refilled. I do mine about every 12-18 months as I do A LOT of driving in a year. Second have your transmission mounts and engine mounts checked. I had one replaced when I first bought the car with about 102K on it. They will in time deteriorate and likely that's what you have now. They absorb the inertia similar to a shock absorber on the wheels. I've been told I need to basically replace ALL of mine and the parts are relatively expensive. I was priced over $700 for them all. Ebay sells them for around $450 a set but once you add the cost of labor (unless you can do them yourself) you'll still be looking at around $600-$700. Best of sucess on your car.
These are the points I was going to bring up.

A simple transmission drain + fill (don't have it power flushed: it can cause problems) may help shift smoothness quite a bit. This is what I'd do:
DIY Transmission Service (Filter + Drain)
I'd advise Honda Genuine ATF from your dealer: these transmissions apparently take really good to the Honda Genuine fluid.

You could go a bit further and try this one:
4x Tranny Flush by Gil
I understand it works wonders.

Finally, check the car's mounts. Legends are notorious for breaking the rear transmission mount (my last one came out in 3 pieces when I went to have it replaced) but as they age, the motor mounts are probably not in prime condition either.
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Old 12-28-08, 03:46 PM   #6 (permalink)
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Thanks guys, I will have these done in the order you mentioned. Just a last question though; what happens if I keep driving like this, will it damage any parts in the car?
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Old 12-28-08, 04:13 PM   #7 (permalink)
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never heard of damaged from the hard shifting from the Legend so far.
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Old 12-28-08, 11:37 PM   #8 (permalink)
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Thanks guys, I will have these done in the order you mentioned. Just a last question though; what happens if I keep driving like this, will it damage any parts in the car?
Well, if these problems are not fixed by the things described above, you may have a transmission problem in which case the transmission may eventually wear out... but that's not by any means a sure thing.

For the most part, hard shifting's biggest harm is to the engine and transmission mounts and the transmission itself.
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Old 12-28-08, 11:39 PM   #9 (permalink)
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Old 12-29-08, 11:47 AM   #10 (permalink)
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I would have the solenoids looked at next if you still have hard shifting. I know that's what the mechanics do on the Honda Accords from the same period. I've had something burn up (possibly a/c related) which had a STRONG SMELL and it gave the impression of a transmission malfunction as the car would just sit there before figuring out I had the gas pedal depressed. I IMMEDIATELY had the fluid flushed or should I say drained and then refilled at Express Oil (not so much recommended) then took it to my Acura mechanics when they opened on Monday. They gave it genuine Honda fluid and I've not had any sticking or anything else to indicate the transmission is malfunctioning and that has been around 6 months now. I'm pretty sure my mounts are gone as I can slightly hear and feel the shifts movement particularly on the rear mount. I did get about 155K miles out of that mount so I should be satisfied huh?!
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