V10 - When you shift into tiptronic to brake going downhill, the engine first revs up and then the transmission engages. Sort of an automatic double clutch!
View 2 Replies1983 chevy c10I bought this old truck about a week ago and I noticed a few things right from the start. Engine revs kind of high before the transmission engages (about 1,200+ rpms).at highway speed the truck shakes and vibrates really bad at times. the steering wheel doesn't vibrate so I dont think it`s ball joints or tie rods.The truck barely goes backwards when in reverse, the engine revs high (over 2000 rpm) but the truck barely moves backwards.It almost feels like the emergency brake is on.
yesterday the truck (transmission?) started slipping and then it stopped working. I was stopped on the side of the road and this old guy stopped.I told him what happened and he said it was probably the transmission but he knew a way to get it working again long enough to get me home. He picked up a handful of sand from the side of the road and put it in the transmission dip stick hole and then poured half a bottle of brake fluid in.He said the transmission is gone anyway so the sand and brake fluid wont do it any more harm.The truck ran again but not far enough to get me home I had to get it towed. Now I am wondering if it really was the transmission and not just the torque converter. I guess it doesn't matter now because the transmission is probably toast now.
When the car is cold it runs fine. After driving for 10-15 minutes the transmission slips, while driving the engine revs and then engages again.I have only noticed the disengaging/engaging as speeds less than 40 MPH. When the car is in neutral and placed into drive it may take several seconds to engage which happens about 60% of the time. Could this be a sensor failure or time for a new transmission?
View 4 Replies2004 Ford Ranger revs the engine when you engage the clutch then when you place it in gear it's like the cruises on it want to drive without you touching the Accelerator?
View 4 RepliesMy truck is a 2004 (new body style) 4.6L XL Supercab 4x4, trans code A, which I believe is the 4R75W transmission. I bought the truck used last year with 110k miles on it and it still only has 115k now. I think the problem with the trans was there when I bought it (it's highly intermittent) which may be the reason why the PO traded it in, because the truck is in excellent shape and has clearly been well cared for in all other regards.
The problem only occurs after having let up off the accelerator pedal for a while and coasting, then getting back on the gas without coming to a complete stop, like one might do coasting downhill or coming up to a light that turns green before you come to a stop. When that happens it feels like the transmission has shifted into neutral and the engine revs up freely for a second or two and then suddenly engages and clunks / slams into drive. This doesn't happen every time that I attempt to reproduce it, and it went for the entire summer without doing it once. But, now that winter is coming on in New England I find that it is doing it again once in a while. The problem seems to happen whether overdrive is engaged or not.
I've checked fluid level and condition and both are fine. Nice bright red color and no burnt smell. The transmission works well in all other ways except for this one issue. With the exception of this problem it seems to be engaging, driving and shifting perfectly, with no slipping, even when giving it a good romp, with or without 4x4 engaged, or even carrying a heavy load, causes no problems.
To me, this seems like a control problem of some kind, doesn't it? If it was mechanical or hydraulic I wouldn't expect it to only occur after coasting for a while.
This is just a basic Sentra 2.0L with a CVT, about 80k miles.
I park on a very very slight downhill grade.. very slight.. almost flat.. The car starts just fine, put it in reverse, push the pedal to the floor, engine revs up to about 1500 rpms (I'm assuming it has a limiter on it because it won't go past 1500) and the car sits still. Release the accelerator, floor it again, car moves about 6", repeat a few times and eventually I can back out. That ain't normal.
It does a similar thing when in Drive, except it will actually start moving but very slowly. So slow that I'm afraid I'm going to get T-boned if I try to make a left turn. Once I get up to about 10mph it starts to feel somewhat normal.
Once it starts moving it doesn't seem to have any trouble maintaining highway speeds. The engine might be running a little faster than normal, but to be honest I'm not sure if it is or not. Pulls up some pretty significant hills at 60mph at around 3k RPM.. which seems reasonable.
What it could be? Transmission is still under warranty so I'm hoping it's that.. I don't really have the $ to throw at this thing right now. By the way - it's not throwing any codes or anything.
I just purchased a used a Lexus GX470. The transmission seems to do something fairly consistently that seemed unusual to us, but we are new to this car so I'm not sure if it is normal, abnormal, or a sign of something big to come.
When starting from a complete stop, upon removing your foot from the brake, there is a noticeable mini-surge in the engine as the transmission engages, and the sensation seems to repeat when the transmission is disengaging as you brake to stop.
Does this sound normal? From searching on google, I have read that there are issues with "hard shifting" but this does not seem to happen with shifting...just when the transmission engages or disengages, and it isn't a big 'bump' as much as a mini-surge. I have also read where it could be related to something electrical such as the air conditioner.
The car is under warranty, but the service department notes no error codes when they scanned the engine.
I have a '05 V8 T-Reg (loaded with Air, NAV, and the like) and have the local VW dealership perplexed. The problem is when I am going up a hill and slowing down. While downshifting the T-Reg lunges forward while moving from 4th to 3rd gear or 3rd to 2nd. The car jumps forward and the engine revs. If I don't have my foot on the brake I would smack into the person in front of me.
Initially, the dealership (Day Imports, Monroeville, PA) determined it was the valve stems and replaced them (after keeping the car for 4 days). The problem came back and now (going on 6 days in the shop) they cannot find a solution. They tried a new shifter plate but the problem still exists. I'm waiting to hear back from the service manager about what VWoA should try next.
The T-Reg has 72k miles on it...
Well my 05 Touareg V6 is at VW waiting for a new tranny. It has approx 55,000 miles. The problem is, when i'm decreasing my speed say at 55 mph due to traffic or whatever, then begin to accelerate at approx 30mph, the engine revs slightly and the transmission kicks into gear very hard. VW test drove my VW and acknowledge that there is a serious problem with my tranny, but after 4 days, could not figure out why my tranny was doing this. So they are going to install a new tranny this week. I've already experience the hesitation problems and VW has attempted on fixing that too, but it still does it but i/wife have both have learned to live with it.
View 12 RepliesMy 2007 RX350 has 14500 mlles. After almost coming to a stop (5mph) and at times that I need to accelerate quickly while traveling at approx 30mph the transmission wants to hunt for the proper gear. ILO downshifting to the next lowest gear it does nothing but hunts for a second (seems like a minute with traffic approaching) then grabs a gear. Engine RPM revs naturally but too high. Dealer states this is normal for the hunting action. The vehicle is perfect other than this one small problem.
View 14 RepliesSo I tried to launch my 04 accent today, but when I threw it into 2nd, all I got was engine revs. 3rd, 4th, 5th and reverse all work fine, but 1st won't work at all, and I can only get 2nd to work if I shift into 1st before hand. My question is what broke?
View 2 RepliesI have a 05 expedition and when it goes to shift from 2nd to 3rd the engine revs up and shifts hard all other gears shift fine. What can this issue be and is it a easy fix?
View 1 RepliesIn Drive the engine revs but wont accelerate more than 25mph. D1, D2, and reverse work as usual. Fluid is dark, but no debris, no burnt smell. Should I change the fluid & filter? The shop said that would make it worse.
View 1 RepliesReverse works great....engine revs and barely pulls in drive. Not sure yet if it actually changes gears. I am planning on replacing tranny. I have a few questions :
1: Could it be something more simple like a selonoid or ???
2: What all trannys will fit? this is the 2wd 5.4 liter xlt ...
Recently, when I start-up my 2004 V8 Tourareg, my downhill assit feature turns on. This occurs on "level" ground. It will go away when I turn off the engine and restart. I took it to the dealer and they said I needed a new rear differential motor. Only have around 4,500 miles on the SUV with zero off-roading time.
View 1 RepliesLooking for a pic or diagram or able to explain it well, of how the valve body engages the shift linkage/kickdown on a c6. I need a pic of the actual valve body itself and how it engages INSIDE the pan NOT externally.
View 14 RepliesMy 94 e4od does a few things. It doesn't seem to engage positively all the time. It doesn't grab well in manual 1st, but does in D. I had the FIPL reset at the dealership and he said he never saw a FIPL needing to be set so far one way. Also it has overheated a few times. Either the TC doesn't lock up correctly or its just not all the way in gear (if thats possible) I changed the fluid but it did it again recently.
Also the speedometer is jumping around like a nut case, the abs light is on...sometimes, when I have the headlights on and put my right turn signal on it feels like the TC locks up. Oh, yeah the lights are all jacked up in the back. The left turn signal light also has a small amount of voltage when I put the headlamps on (my test light lights up dimly) I thought it might be the multi function switch so I removed that and cleaned the connections. Nothing changed but I dont think that was it. I have troubleshoot this all day and I don't have too much of a clue to whats going on.
'96 Explorer 4.0l V6 4X4... 214,000 miles. So, I'm having some transmission slippage and was wondering what can be done about it. You see the mileage and the only thing done to the trans was a drain and filter/fluid replacement at 120,000 miles.
Here's what's going on... When cold, in the morning, I put it in drive, trans engages, I move maybe 20 feet and it disengages. I wait up to 20-30 seconds and it engages and slips right back out. I wait, engages, move 50 feet and it disengages. You get the picture. After doing this 4-5 times it will engage and I can drive a 100 miles with no problem. Seems like it need to build up pressure or warm up before it will drive normally. I've checked the fluid and it is at the correct level. I guess my question is, would I be wasting time and money to replace the filter and fluid again or is it just warn out?
I've read when a trans starts slipping after it's warmed up means it needs a rebuild and mine is the opposite.
My 2006 Ram 2500 w/Auto Trans leaks ATF when parked with the front end downhill. On the level its okay. Looking under the vehicle, it appears to be leaking where the dipstick tube enters the case at the front of the transmission. The tube is held to the case by a single bolt and apparently there are other bolts higher up that I can't easily see. I'd like to remove the dipstick tube and replace the gasket or whatever seal that seems to have failed.
What seals the tube at the trans case? Gasket? O-ring? Silicon glue?
is it good practice to shift to neutral, while driving downhill on automatic transmission? the owner manual does not recommend, would like to know why.it makes sense to save gas, while doing this. (i used to do it while driving manual)
View 7 RepliesWhen cold starting the transmission shifts into reverse perfectly, then after backing up the car and shifting into drive it hesitates for 4 or 5 seconds before it engages the forward gear.
2008 Accent 4 door automatic 77,000 KM