Toyota - Sienna :: 2004 - Code P0793 / Hard Shifting Between 2nd And 3rd Gear In Traffic
Apr 18, 2014
I have a 2004 Sienna LE with 169,500 miles. It started to shift hard between 2nd and 3rd gear in traffic (it had previously never had ANY hard shifting). A few minutes later the CEL came on along with the VSC and Traction Control lights. Both Advance Auto and a Toyota dealer confirmed that the codes showed the speed sensors on the rear wheels (both sides) were bad. The Toyota dealer also declared that the low gear solenoid in the transmission was bad and the transmission would need to be replaced soon. I found it strange that the transmission started shifting hard at the exact same time the speed sensors went bad. Is it possible that simply replacing the speed sensors would fix my hard shifting issue? I am a shade tree mechanic that does brake work and other intermediate tasks. Is speed sensor replacement an easy job on this Sienna?
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I have a 2003 Buick Park Avenue with the 3.8L V6, not supercharged. If the pressure control solenoid on the 4T65E transmission can be changed through the pan? I ask because I get hard shifting if the car is running in stop and go traffic where the engine cooling fans are starting to cycle. Simply shutting the car off and immediately restarting clears the hard shifting. Otherwise the transmission shifts smoothly. Searching the internet suggests the PCS is getting tired. I wouldn't mind throwing a $50 part in as an attempt to cure this issue if the average Joe can swap it out.
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I recently replace my catalytic converter with a MagnaFlow direct fit, thinking it may have been clogged. This did not solve my problem. The car only jerks after it has been driven more than 30 minutes. It usually starts jerking once I get back into town (stop and go traffic). I have replace a handful of sensors. I plan on replacing the transmission control solenoid. How many do I need? Where is the TCS located?
2002 Chevy Monte Carlo SS 3.8 6cyl. 98k mi.
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My 2009 Sienna has turned on the Malfunction Indicator Light but my OBD-II scanner shows "no codes". How can that be? How can I diagnose the problem?
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I have a p2195 trouble code with my 2007 Toyota Sienna CE. This is O2 Sensor Signal Biased/Stuck Lean Bank 1 Sensor 1. I am assuming I'll need to replace this sensor. It's a little confusing but if I am reading my Haynes manual correctly, the repair goes as follows:
The sensor for 2007 and later models will be in the exhaust pipe after the catalytic converter. To remove it, it's necessary to remove the passenger seat, disconnect and snake the pigtail through the grommet in the car floor. Then, disconnect the O2 sensor from underneath the van and replace.
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I have an 8 year old 2004 Toyota Sienna LE minivan. This past weekend I tried running the air conditioner when the temperature was in the low 80's (F) outside. Unfortunately, the AC only blew hot air, even though I drove a pretty long distance with the AC on.
I think the refrigerant has leaked out and is depleted. Whether or not I should attempt to recharge the AC by myself with my neighbor's assistance (he has all of the gear for recharging the refrigerant) or if this is a job that is better left to a professional.
Also, if I do attempt the job by myself, would it be better to try and seal the leaks with a dedicated sealant first, or should I use the canned refrigerant that also contains some kind of sealant?
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My wife's '04 Sienna is having an AC problem. The compressor comes on with the first start of the day and the AC blows nice chilly air. As you take that first drive of the day the air will switch to warm, then the compressor may kick back on or it may not, but then it stays off for the rest of the day. I'm not sure if this is because of the ambient temperature rising throughout the day or because of the engine parts heating up.
The low side pressure is 35 when the compressor is on.I tried switching the MG-CLT Relay with the Horn Relay to see if it was bad but the horn still worked and the compressor still doesn't come on.
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So, I bought an used 2006 Hyundai Azera Limited few days ago. It's clean title and has 86k miles on it now.
After three days from the purchase date, my car starts causing transmission problems, hard shifting from 2nd to 3rd gear only. It's getting worse now...
Now, what should I do? ...
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Have a 2000 expedition with 84,000 miles. Tranny seems to shift hard from first to second gear. Its been 24,000 miles since my last dealer tranny service. Thinking of getting a new service now before the recommended 30,000 manual recommendation. Whats happening?
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2004 Sienna LE with 193,500 miles. While driving home tonight I started hearing a grinding noise from the passenger front wheel. The noise goes away on acceleration and braking. Whenever I take my foot off the gas it starts to make the noise again. It sounds almost like a brake noise but I just replaced the caliper bracket this past weekend and the brakes look great (less than 20,000 miles on caliper, rotor and pads). I suspect a bearing may be going bad and want to know if these symptoms match a bad bearing. The wheel bearings are all original.
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My 94 Toyota Corolla has about 190,000 miles on it and lately it has had a hard time shifting between 20-30mph. It finally does reach it and does not have trouble shifting at any other speeds. This only happens in the heat of the afternoon (Never have this problem in the morning). Also, my O/D light has been flashing when this happens, or at least around the time it happens. Could these two problems be linked? I took it to my mechanic in the morning and he checked the transmission fluid and it seemed fine, he also had no problems driving around when he tested the car. He said my transmission is going and that I should make "long term" plans. Is there any hope?
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My 2002 jeep grand Cherokee Laredo 4x4 is shifting hard from first to second. It has 120,000 miles on it. Should I do a filter and fluid change or just work with the bands?
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I have an '03 AWD, automatic Santa Fe and it started shifting really hard into 2nd gear when going uphill recently. It also seems to take a while to shift into 2nd from 1st, but it doesn't bang like it does when downshifting.
In other threads on this site is seems like either the throttle position sensor or shift solenoids may be responsible for this. What's causing it, and how to go about fixing it?
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I have a 2006 GS RWD the transmission started acting weird 4 month ago went to many workshops and no codes were found in the computer and my problem is that when i am moving in the car for more than half an hour and stop the car seems hard and jerking while shifting to 2nd gear and if i put it in tiptronic it go to 5th gear immediately it seems ok when the transmission is cold so what do you think it has got 125000 miles on it and what is the normal temperature for the transmission so i can test it with mini vci...
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Just curious if there are any other 2010 owners with any difficulty shifting gears in their manual transmission camrys? I noticed during my test drive that I grinded my way into 2nd once... I thought it might have just been my nervousness with a new clutch at the time. However, I've since put 300 miles on the car and I still have trouble putting it into second gear on a daily basis. Sometimes it grinds a bit, and sometimes it catches or a half second before it pops in. All the gears OTHER than 2nd gear go in like butter as you would expect with a new transmission. I'm not new to a clutch... this is at least my 4th car with a stick, so I don't think I'm doing anything out of the ordinary when shifting.
It reminds me of some older (100,000+ mile Nissan) cars I've had in the past... the syncromesh was wearing out and it would grind going into second or third, so I put in some RedLine MTL and got a little more life out of the transmission... but there shouldn't be a need for that kind of thing on a car with less than 1000 miles on it?!
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1999 Jetta MK4 with only 124k miles on it. Everything is fine with the car except when the car shifts from 2nd to 3rd it is jerky/violent/forceful everything else is good with car except check engine light is on but I don't really care about that and I'll go check with autozone to see what the code is. I am able to feather the gas when I know its going to shift and I can make the shift pretty smooth. My question to all the experts is does this mean that this tranny is on its last leg or does it still have a lot of life left in it. My old Cabriolet did it for years and never was a problem.
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Third owner with about 81k, sometimes when I go to shift into sixth it seems like there is something stopping me about half way into normal position. Normally I have to go back to neutral and then try again. I don't have this issue with the other gears.
second question, I've noticed under deceleration mostly or going slow over bumps that I can hear a tin style rattle. Now the last couple days when I start the car with or without AC running there is a constant rattle making me think that whatever was rattling over bumps is about to make a run for it when I hit a big bump or something.
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The Accent has been working great recently until the other day when I got in to go to work and now it suddenly shifts very hard into 2nd. And sometimes 3rd.
This problem seems to come and go. Sometimes it will shift smoothly. Other times it will have to reach super high rpm and I will have to let off the gas and slowly accelerate to get it to shift. This seems to happen throughout all the gears and it does not make any difference if overdrive is turned on or off. Also reverse works just fine.
I checked the fluid and it is at the proper level. It does seem to be a little dirty (not burnt) so I am planning on changing the transmission fluid, but something tells me that is not going to solve this issue. It seems like an electrical issue to me. What it could be?
There are no codes at all on the car. Don't know if it matters but the car just turned over to 100k miles. I've been reading on here about all the problems the automatic trannys have in this car but 100k seems a bit early to have any serious transmission problems.
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Car in question is my 2003 Jetta 1.8t with the 09A 5 Speed Automatic. For the past 2 or 3 months these have been the symptoms: 1st to 2nd gear, very hard shift depending on RPM's (Higher the RPM's the harder the shift) 2nd to 3rd gear, not really hard but it kinda 'flares' the gearbut still shifts. All other gears are fine, although if you accelerate hard out of 4th it will have a little bit of a hard shift. I'm thinking either solenoids, or the speed sensor?
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When I turn on the heat, I only get hot air through the drivers side vent,the passenger side vent is very cold. I had it in to be worked on (at a Non-Toyota shop)and they tore it completely apart and could not diagnose the problem. It affects the entire system,meaning the air going to defrost is also hot on the drivers side and cold on the passenger side.
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Whenever my 2004 Honda Pilot gets stuck in traffic, I have to switch it into a lower gear in order to resume forward. Automatic transmission. It's a rebuilt trans that has 60K on it. Transmission fluids at right levels and recently flushed. The car mileage is 198K. I don't have the issue with normal highway and local driving. It is only when I am stuck in traffic.
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