The 4LE is an automatic shift, four-speed overdrive, longitudinally positioned transmission. It has been considered to be the best rendition of the finest overdrive automatic transmission ever produced. The Late 4LE was released in in and fully phased into wide use through GM by in both RWD car platforms including the C6 Corvette and trucks in both 2wd and 4wd configurations. The 4L60E transmission weighs pounds dry, and wet. It requires 8.
This list is merely a guide to the possible solutions. It is possible to remedy a fluid problem by removing the checkball from its cage in the case in the rear of the transmission may help must remove valve bodyor adding a high-viscosity additive or other seal restorer product. May also have worn boost valve can replace in the pan. Middle case: leak in the 2nd gear apply circuit servo assembly or accumulator. Double check by using the pressure gauge and watch for a big drop when the PCM commands 2nd gear.
Worst case: poor line pressure rise see below. Check the yellow spring inside the accum housing for breakage. Also, if the accumulator housing walls are scored, the housing must be replaced. If not, this must be replaced. Trans does not upshift out of first, speedometer reads zero at all times: Could be VSS failure.
Rear of transmission needs to be fixed. Transmission needs to come out in order to access VSS. The car is safe to drive in 2 until you can get it fixed. Sudden grinding noise with no prior warning primarily in 2nd gear, behavior in reverse may be abnormal: sunshell is fractured. Must be removed and rebuilt. Try not to run or drive the car or further damage could result. Transmission must be removed and rebuilt. No 2nd or 4th gear. Otherwise, band is worn out. Trans shifts into gear harshly, car feels sluggish off the line, No 1st, 4th or TCC lockup available, Manual 2nd, 3rd and Reverse are only available gears, CEL is on: transmission is either in limp-home mode or has lost electrical power.
If there are lots of error codes in the PCM, check the underhood fuse that powers the transmission, and if it pops again, look for a short in that circuit like an O2 sensor harness touching exhaust. Needs diagnostic testing. Horrible noise in 4th and feels like the brakes are on: overrun clutches are applying due to a cracked or leaking forward piston.LandyZone is the biggest Land Rover forum on the net.
We have plenty of very knowledgable members so if you have any questions about your Land Rover or just want to connect with other Landy owners, you're in the right place. Registering is free and easy just click herewe hope to see you on the forums soon! Discussion in ' Range Rover ' started by kozziNov 30, LandyZone - Land Rover Forum.
Cookies Welcome Guest. Joined: Nov 30, Posts: 12 Likes Received: 0. Hi, new member but been looking for a while. I have a 4. I have had no lights or codes come up on the dash in the three months I have owned it; bought it with the noise at an auction and detective work on forum suggested TC.
6 Signs of a Bad Torque Converter
The 'check coolant' flashes up sometimes I don't know if these are connected. Hopefully just a new converter needed?!! Many thanks if anyone can shed some light Koz. Droning would be more diff related I would have thought The main telltale with the Torque Convertor is a 'cattle grid' type vibration feeling when on light acceleration around mph and more evident on a slight incline.
This can be accompanied by the rpm needle wavering around rpm up and down as the TQ lock up clutch tries to limit TQ slippage. Original: Recall: Second thing would be drain the gearbox oil and change the filter, this will allow you to see the condition of the oil and if there are any large debris in the box which would suggest TQ failing V8Nov 30, Don't remember cattle grid feeling but definitely a drone that goes on and off although the needle sometimes fluctuates one thousand revs or so when 50ish.
Will any dealer be able to tell me over the phone regarding the dif replacement? Hi Kozzi Get your head under the car and have a look, it has got to look like the bottom picture. If i doesent look like this you need to ring customer relations and get it booked in,this recall ended in but i had mine done 2 weeks ago,i also told them that i have just changed from a p38 so there was a bit of loyalty there plus you must have a LRFSH but i did so no probs.
Good look Cheers Kaz. Hi Kaz, rear dif looks like bottom picture but front one doesn't - looks like top picture. Called LR in Ipswich and they told me no out standing campaigns on this car!!! Kozzi, If it hasent been done you need to do it anyway, i got the number for you and his name is John lake this number is a direct line to him and he dealt with the whole process but i had to book it in for an inspection at Northampton, the way i looked at it is it was there problem so they can sort it!!!
IMO it is a safty issue. Cheers Kaz. Never heard a torque convertor drone. DatatekNov 30, As saint says, light and constant throttle up a slight gradient letting it change up through box, mine was worse when revs dropped as it changed into 4th I think, rev counter would move in time with the hum ,after about 56 mph the LUC should be locked I believe, you can check if you let the throttle off at about 56 mph and if the revs drop significantly it ain't locked I had TC reconditioned and now it's perfect but 'I' did do a couple of extra jobs with a 'bit' of help Bemble RRPhil is god and saint is stood beside him when it comes to transmissions!
Ask me how I know, probably ask anyone how I know!! You could always try DR trannys rumble fix, we could do with a Guinea pig, there was some discussion on another site about it.The engine and drivetrain must be ruled out before troubleshooting transmission noise or vibration.
Transmission oil pumps provide fluid pressure for the transmission and torque converter. Gear and rotor-type pumps are considered fixed displacement. Most transmissions today have variable displacement pumps that vary or change fluid pressure according to demands.
With a fixed displacement pump, the pressure increases with rotational speed, sometimes providing unneeded pressure. With a variable displacement pump, the pressure is allowed to decrease with lesser demand.
It saves energy by reducing output without affecting speed. Transmission pumps are driven directly from the engine through the torque converter. The torque converter housing is mechanically attached to the engine's crankshaft causing the pump to operate whenever the engine is running.
It's why a worn or faulty pump makes a whining noise in all gears, including park and neutral. A restricted or clogged transmission filter makes the same whining noise as a faulty transmission pump. It's crucial when diagnosing a transmission pump or a torque converter. Make sure the filter's good before replacing the pump. Diagnosing a transmission is the same as anything else; it often ends up being a process of elimination. Begin with the basics and remember if something is not moving; it's not making a noise.
It's essential when diagnosing the drivetrain and planetary gearsets. In drive with the wheels held stationary, the entire drivetrain's stationery, eliminating these items as a potential cause of the noise. Study Tips Test Format Feedback. Transmission Oil Pump The engine and drivetrain must be ruled out before troubleshooting transmission noise or vibration.Ford F owners have reported 15 problems related to automatic transmission torque converter under the power train category.
The most recently reported issues are listed below. When I was driving I lost power I put on the scanner got a code p which is the torque converter solenoid I lost all gears I reset the light got 3 and 4 was able to make it home but now have no gears what so ever.
See all problems of the Ford F The contact owns a Ford F sd. The stated that a large puddle of transmission fluid leaked from the exhaust pipe. The vehicle was taken to an independent mechanic, who stated that both the transmission front seal and the torque converter would need to be replaced.
The vehicle was not repaired. The manufacturer was not notified of the problem. The approximate failure mileage wasThe contact owns a Ford f While driving 25 mph, the overdrive light began flashing. The vehicle was taken to the dealer and they stated that the torque converter failed. The vehicle is currently being repaired. The VIN was unknown. The current mileage wasand failure mileage wasConsumer had this problem repaired.
She was then informed that there was a TSB that she never knew about. Ford is refusing to reimburse her for the repairs. The consumer stated the manufacturer was fully aware of the transmission problem, but failed to notify their customers.
The problem was the fluid would overheat during severe duty and wear out the torque converter, which resulted in the radiator, cooler lines and hoses for the transmission to be replaced.
The stabilizer bar link and battery were replaced. The steering wheel does not vibrate however the trucks frame and body does. The vehicle was taken to the dealer for repairs on 4 occasions.
On the first occasion the left front tire was replaced and all tires were balanced. The second time the drive shaft was replaced. On the third visit all four tires were replaced. On the fourth occasion another drive shaft and pinion gear was replaced.
The vehicle still has the same problem after all of the repair attempts. The contact believes the problem is with the automatic transmission torque converter. The manufacturer has been alerted. My f superduty truck at less than 6, miles started slipping gears between 1 and 2 when trying to get into oncoming traffic truck would stall.
Return to dealer they rebuilt transmission didn't fix problem! Having to file a lemon lawsuit!. Nothing has been done to my f superduty, under load it will not shift down automatically without depressing the foot feed.
They have tried three times to correct this and know nothing. I am not going to keep it unless it is fixed. We were told Ford knows there is a problem with these trucks, but does not know the fix.Discussion in ' 3rd Gen.
Log in or Sign up. Tacoma World. Welcome to Tacoma World! You are currently viewing as a guest! To get full-access, you need to register for a FREE account. Post Reply. Is this normal on 3rd gen? Lately I can hear my torque converter or transmission pump whine on all gears, even in park. Only happen when I step on the gas pedal.
Its not super loud but noticeable ecspecially cruising on hills. Last edited: Oct 13, Not normal. What mods have you made to the truck? Good luck. Did you have the whine before you put your lift on? HerniatorOct 12, EMTOct 12, Dirty Harry likes this. Dirty Harry and oscolivar1 like this. Short video of the whinning noise. I had it on ECT mode to keep the rpm higher so the whine is more audiable.
Its louder in person. First thing I would be doing is " checking the trans fluid level "and running a pressure guage on the transmission. A computer scan, its a completely computer controlled trans Next, run the engine with the serpentine belt removed for diagnostic purposes All the shift points feel normal? The video is a little difficult to hear the sound to be able to pick out the problem. If you can hear the noise in parkits not a lift kit issue unless something is rubbing up against the drive line ever since the lift causing the sound of the transmission to be somewhat amplified.
Torque Converter Problems – Symptoms, Function & Replacement Cost
Have seen this many times. Dirty HarryOct 13, HerniatorOct 13, Show Ignored Content. Spicer X U-Joint Kit. Compact Design. Viair 88P Portable Air Compressor. Frost King 0. YI Smart Dash Cam, 2.
Username or email address: Do you already have an account? No, create an account now. Yes, my password is: Forgot your password?Automatic transmission torque converter whine is a common ailment in cars, but it doesn't necessarily mean a transmission overhaul. Instead, the whine could be a result of too much space between the converter pads and flex plate.Acura TL Torque Converter Shudder
Often torque converter whine occurs after the installation of a new or repaired transmission in which the measurement between the converter pads and flex plate is not correct.
Too much clearance will prevent the converter from fully engaging the front pump during acceleration, which causes the gear to rock and whine. Driving the car with a torque converter whine may damage the transmission, so it's imperative that proper clearances are determined immediately.
The front transmission pump, and not the torque converter or roller bearings, may also be the whining culprit, and require a simple replacement. This article was written by the It Still Works team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information. To submit your questions or ideas, or to simply learn more about It Still Works, contact us. Why Does a Torque Converter Whine?
Not Engaging Too much clearance will prevent the converter from fully engaging the front pump during acceleration, which causes the gear to rock and whine. Damage Possible Driving the car with a torque converter whine may damage the transmission, so it's imperative that proper clearances are determined immediately. Other Causes Tripleedgeperformance. The Pump The front transmission pump, and not the torque converter or roller bearings, may also be the whining culprit, and require a simple replacement.
References Torque converter whine discussion. About the Author This article was written by the It Still Works team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information.Honda CR-V owners have reported 15 problems related to automatic transmission torque converter under the power train category. The most recently reported issues are listed below.
Torque converter on transmission needs to be replaced at 66, miles although systems have existed for almost 2 years, but just now diagnosed. See all problems of the Honda CR-V. This is a known issue with Honda America as they have two service bulletins regarding the issue. There are multiple online forums with Cr-v owners having the same exact problem with low and high mileage. The dealership performed the first "fix" according to the Honda service bulletin and it was ok for about 2 weeks and now it's back, worse than ever.
The second fix according to Honda is a torque converter replacement, which may or may not help the problem.
Car shakes, jerks, and "judders" between 20 and 40mph under light acceleration. This was diagnosed by a Honda dealership as being the issue addressed in Honda technical service bulletinbut they will only fix it at their cost if you are still under warranty. Fixing, according to Honda requires replacing the torque converter, updating the pcm, and replacing the transmission fluid.
That's a pretty expensive bill for it being their software issue in the first place. Car also make a loud grinding noise on cold starts. Was informed this was an issue with the vtc actuator, but there was no fix for it. Takata recall. When driving my vehicle 30mph my car starts to make this weird noise almost like the noise is when you vear off the road and hit the bumps. I have called my dealership in August and asked what gas was I using as soon as I mentioned walmart and racetrac he stated thats what was wrong with it and I needed to bring it in for a checkup.
I made several appointments on their website ,1 sat appointment that I had to reset tilanother sat appointment then I got a call stating that because of the issue I was having they needed me to bring the car in during the work week hours to have more time. Nothing ever mentioned about the power train of the vehicle.
At this time I had about 72, miles under 80, I could not afford the fee they said it would cost me at the time so I canceled the appointment.
Now I have the money to bring it to the dealer and when this nice guy picked up the phone he lets me know they are indeed having issues with this vehicle and I need to get it in ASAP to be put on the computer for an update that is covered under my power train warranty as long as the vehicle is under 80, mile.
Are you serious!! I inform him that I read up on this issue and people are saying that they had that done and it was not the problem,he then said well the 2nd part would be to replace transmission and torque converter or you serious.
So now that I am over the milage for the warranty I have to pay for this but had I been told this back in August it could have been fixed. But there is no recall on this but yet so many people complaining about this same issue on the internet.
Is Honda trying to cover this problem up?. Every morning for almost over a year I would start my Honda cry. It would rattle like the muffler was loose. I would last until it was warm up. Just recently it has gotten worse and now lasting longer. I had my car service this summer and had my torque converter replace along with the transmission fluid and the update on the computer.
The noise never disappeared.