Transmission slipping?

Good evening,

Can you upload a video of the sound it is making when it shifts? It does not sound like it was the transmission. If I were to guess I would say the fan clutch is looked uop can you check it? here are two guides to help us.

https://www.2carpros.com/articles/fan-clutch-symptoms

and

https://www.2carpros.com/articles/automatic-transmission-problems

Please run down these guides and report back. Roy

It was the fan clutch great call I got a new one then used this video to help install it.

https://youtu.be/N_-MLVlBHk8

thanks again.

Nice work, we are here to help, please use 2CarPros anytime. Roy

When I put my Sport Track in reverse it jerks and it slips when changing into overdrive it acts like its on neutral and finally shifts gears. I'm not sure how to check the fluid I guess its a sealed system and never needs fluid added.

scan for codes and check fluid level he can check it. if fluid is dark brown or black it will probably need a service. These guides will help find out what it going on

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

and

https://www.2carpros.com/articles/how-to-service-an-automatic-transmission

Please run down these guides and report back.

thank you, I appreciate it

My transmission slipping gears while I drive.

The most common reason would be low transmission fluid. However Ford decided that us mere mortals can no longer use a dipstick to check the fluid level on some models. Instead you have to take it to a shop, they use a scan tool to check the fluid temperature and connect to a port on the bottom of the transmission to check the level.

Next reasons would depend on which transmission you have and which gears work or does not work and when it slips.
For those could you please tell me if you have a two or four wheel drive?
What size engine? (if you're unsure the size would be on the sticker on the radiator support under the hood).

And lastly here is how you check the fluid level which is probably the problem. Check out the diagrams (Below). Please let us know what happens.

I have a 2003 Ford Explorer Sport with 128000 on it. The transmission slips. It goes from 1st to 2nd then tries to go to 3rd but slips back into 1st and the rpms rev. If you stay in the gas it will then slam into 3rd at about 3200rpm and the OD light will start flashing if it is hard enough. I have become so complacent that i've been able to notice it coming and will let off of the gas right before it happens and slowly press on it again and it will shift correctly. It happens mostly when it's cold outside. When it's hot outside it does not do it nearly as often if any. I have added Lucas Transmission additive and it did not help. Can you shine some light. I'm not convinced the transmission is bad but that maybe it is electricle or a sensor. I still owe 6500 on it but with the economy I am stuck. I need to get it fixed so that it will last. The rest of the truck is in mint condition and runs perfect. Thanks for your time.
Clayton

The working pressure and shifting pattern are all contrilled electronically. If the pressure regulator or one solenoid is defective it will throw everything off. You'll need to have the computer scanned to determine what tripped your check engine light. This should help pinpoint the problem. Hope this helps.

The check engine light is not coming on. Not even sure if it works. If I can get the codes can you guys let me know what they mean? Thanks again

You get me the codes and I can define them for you. The check engine light should iluminate when you turn the key to "on".

I had a new transmission installed about 40000 miles ago and its starting to slip between 3 and 4 when its cold. I'm not looking to replace the transmission again. I took it in and there were error messages in the system but not specific. Is replacing fluid and gaskets best bet?

Honestly, it wouldn't hurt to service the trans, but I doubt it will fix the problem. If I knew the codes you had in the computer. To me it sounds like the 3-4 shift solenoid, but I can't be sure without the code. Also, does it slip in any other gear? Also, is it slow to shift from park to drive?

First start put in reverse and it would take three seconds for it to go . I have never changed fluid or filter and I owned it three years now. I never checked fluid. Other than slip first start up it has been okay. Then leaving work last night giving it gas it switches gears first to second then I noticed the rpm going up more I pulled to side and tried taking off and it was slipping bad. I put in second still slipping, dropped it to first and it took off but it still slipping in first. I drive home in second it did not want to take off at stops it would finally go in first. At home next day I start it up and tried all gears it slipped in all gears even reverse. What do I need to do? If fluid is too low could that be the problem?

You first need to drop the pan and inspect oil condition and for contamination. there are magnets in the pan that will collect metal from the trans as it wears. take a sample of the oil and the pan with the contamination to a work shop for first hand inspection, but from what you have described i feel that the transmission is near due for overhaul or replacement. Just changing oil and filter at this stage may not do any good, you cannot change the oil in the torque converter with out doing a major transmission flush which uses vast quantities of expensive oil. get an opinion first before doing any remedial work.

Diagnostic code b2607 abs system. Transmission is slipping on pull out. No burnt smell or metal.

if trans is slipping and fluid was dark brown or black it needs a rebuild but have a trans guy make sure for a better opinion. the abs module sets this code with engine cranking and both blower motors on certain sport and sport trac vehicles. the cure is to replace the module if the light is on intermittently and or all the time. it cold be a bad ground as well however but a pro needs to check this

Guy said said everything looked great on transmission service. The e brake seems to be sticking but not working at all. It only happens on pullout. Recently had transmission serviced. Will Lucas stop slip hurt it at all to try? And abs code b2607, how do i fix that?

the first reply I said the cure is to replace the module unless the wiring is screwed up which a pro can easily detect and may fix it but I kind of doubt it. I've never had great success with the fix' em fluids and don't know many others other than it's a profit maker for the company. If it looked good in service then it may be the brake problem like a sticky caliper or the abs is keeping it on. try the lucas if you like but like I've said I've never had good luck with any of them. You could have it rescanned to see if you get a trans code come up as it may be a valve body problem.

The transmission will slip out of gear 1 to 3 times or so if I attempt to drive the vehicle when it is cold and I have not let it warm up for 5- 10 minutes prior. It is fine if I do let it warm up before driving.

I read on another site that I might want to look at a flush and filter change. However, it warned that if the vehicle had high mileage and had not been properly maintained, doing this would actually make it worse as the transmission was relying on the dirty fluid and metal shavings as a better grip on the worn internal gears and putting new, slick, fluid in could cause complete failure.

What are your thoughts on this please?? The vehicle has not been properly maintained.

Are you sure the trans fluid is full? ALso, as far as what you read, if the trans fluid is really dirty and burnt, I have seen that happen. However, if it isn't that dirty, you should be fine.

I checked the fluid level and looks to be fine. I can almost guarantee that the fluid has never been drained and replaced. I bought this used. Should I just have a fluid & filter replacement done??

Would a fluid flush at a oil change place work as well?

A flush could help.

Have had the tranny checked by asi mech 2, one was a tranny mech, tests showed nothing wrong, tranny tech said the seals might be going bad causing fluid to leak into electronic, but it doesn't show any leakage when I check the gauage, none on ground. When it gets the od light flashes so we turn it off before we drive. sometimes when its been driving for a while it want to slip at take off. The engine runs great so we're sure its not that. Could the coolant lines to transmission be plugged not letting it cool causing all this problems.

Have the transmission pressure tested to find out more what's going on.

we had one done and they said it was fine

Did they scanned the computer for code/s?

they ran the test said everything was ok, this was done 3 weeks ago

they ran a temp check said when transmission got hot the tranny cooler stayed cool

Find out why the cooler lines are cool-it shouldn't be.

we were told by a friend who knows cars that we should drain and change the screen, I know our coolant has never been flushed in the radiator, could that be causing some of the problems. The tranny screen was changed 7 or 8 yrs ago

After driving a couple of miles the OverDrive Off light comes on and will not tuurn off with switch. The transmission appears to begin 'slipping' at that time. I have checked and trans fluid is full.
Any idea's?

Hi there,

Thank you for the donation,

If you have check the transmission fluid level and it is correct,then you should go get a diagnostic test done on the transmission, there will be a fault code in the ECU, i suggest that you take it to a transmission specialist not a general mechanic as they will have the specialist test equipment to do this diagnostic test for you.

Mark (mhpautos)

Replace the tranny filter

My transmission does not engage immediately when shifting into drive, neither from park to drive or reverse to drive. I can shift to 2 or 1 and it will engage and then move to D, however, the direct shift to D only will work if I press the accellerator heavily and then it will jerk into forward. It also has begun to grind and/or slowly shift one into D as it goes into higher speeds. Any suggestions or thoughts?

First, if it is the original transmission, my first thought is it could be a problem within the valve body. When you shift, there are plungers with o-rings that direct trans fluid so the vehicle shifts. Over time, they get hard and dry out. As a result, fluid bypasses them and it takes a long time to work or if you rev the engine, it builds more pressure.

My second thought is a weak front pump. Again, this will deal with fluid pressure and shifting.

I guess the first thing I should have asked is if the trans is full and the fluid is clean. However, I will assume you checked it.

Finally, when you shift directly to 1 or 2, does the trans work normal when you shift to drive?

Thank you for the reply. Yes it generally works as normal once I shift to D from 2, although lately it seems to be not a smooth shift as I increase speed. Do you suppose I need to get a rebuilt transmission or any other suggestions?

Thank you for the reply. Yes it generally works as normal once I shift to D from 2, although lately it seems to be not a smooth shift as I increase speed. Do you suppose I need to get a rebuilt transmission or any other suggestions?

[quote:9ffd098924="Jacobandnickolas"]First, if it is the original transmission, my first thought is it could be a problem within the valve body. When you shift, there are plungers with o-rings that direct trans fluid so the vehicle shifts. Over time, they get hard and dry out. As a result, fluid bypasses them and it takes a long time to work or if you rev the engine, it builds more pressure.

My second thought is a weak front pump. Again, this will deal with fluid pressure and shifting.

I guess the first thing I should have asked is if the trans is full and the fluid is clean. However, I will assume you checked it.

Finally, when you shift directly to 1 or 2, does the trans work normal when you shift to drive?[/quote:9ffd098924]

Before I say to rebuild it, I have a couple questions. First, is the present trans fluid full and clean? Does it have a burnt smell to it? Has the check engine light come on? Have you tried a transmission service?

Let me know.

Joe