HomeOn a 1984 ford f150 4 speed manual transmission why when driving and shifting through gears half of the time it grinds into gear what could be the problem?
Wiki User
Answered 2006-08-31 16:51:08
Clutch not fully releasing, low of fluid, or synchronizers bad. You may need to adjust the clutch pedal free play.
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Delayed shifting is because the transmission fluid is not warm enough to move through the internals of the transmission. You may need a transmission service,,,,,fluid change, new filter, etc. Transmission Fluid degrades with age.
Are you sure it is the transmission that is clunking? It could be the u-joints on the drive shaft that are making the noise. When the u-joints on the drive shaft are bad, there is an audble clunk when you accelerate and when slowing down (basically the same motions you go through when shifting gears).
There are several reasons as to why a transmission would grind and not shift into gear. The problem could be cumulative therefore the problem could be 1 or a number of issues compounding the problem. The transmission has many valves in it that push transmission oil through. When you shift gears, if the valves are not able to push oil through, the transmission has a difficult time shifting, if it can at all. The transmission also has a magnet in it that essentially picks up small bits of metal that have been grinded by the gears. The constant grinding of the gears does a number of things. First, it wears down the gears leaving a lot of little pieces of metal that are then picked up by the magnet. Through years of wear and tear, it doesn't take a rocket scientist to figure out what happend....the gears become worn down. Second, the gears themselves could be slightly bent, meaning they no longer have their perfect form which of course can complicate shifting. Transmission oil change are not always the solution for these types of problems. Often the build up of metal and old oil is what is keeping the transmission together, other times a transmission oil change will allow for a thorough cleaning and flush any build up in the transmission away. I suggest you see a transmission specialist who can determine the best way to go forward.
The fluid could be too low to allow the transmission to shift. Depending on where the fluid leak is, the leak could be through a bad solenoid or soaking electrical connections, stopping the transmission from shifting.
Sounds like a bad solenoid. But if it shifts hard from first to second then from second to third but fine when from third to over drive forth but then shifts a little hard when down shifting through the gears if that is the case might need to change transmission filter and fluid sometimes overfilling the transmission with fluid could do this as well.
Sorry to be the bearer of bad news but it is most likely the solenoids in the transmission on their way to pasture. I have been driving through traffic like you and the transmission will intermittently have harsh upshifts, sometimes up to 4 or 5 before shifting to the correct gear (down shifting never had a problem). The transmission in mine finally set a code for the 'b' solenoid stuck closed :( I don't believe it has anything to do with the braking at all, but I'm no mechanic. It was highly recommended that I use the lower gear (2nd) for the engine so the transmission does not shift (in traffic only of course) - this will extend the life of the transmission but not fix the problem. I was told that it is not worth the money to try and figure out what is wrong without a code (tons of money to troubleshoot and they may not find the problem). Until the car sets a code just drive the car nicely, feel the rpms and let off the gas a little then reapply - this will help the transmission shift smoother and extend the life of the transmission (I drove mine for almost two years with the harsh upshift before the solenoid went kaput).
Reasons behind the the common transmission problem of 1997 Audi A6 are:Faulty torque converter clutchTorque converter needle bearings failureUnsafe level of transmission fluidSolenoid damage can affect the fluid flow through the transmission
The 1998 Buick Century shift solenoid is located on the top of the transmission. The shift solenoid can be access through the shifting console.
The 1993 Suzuki neutral safety switch is located on the top of the transmission. You can access the switch through the shifting console.
The fluid will aerate, which will cause slipping, shuddering, etc..
You can't shift gears on an automatic transmission because, as it is called, it's automatic! You don't need to shift, it does it for you. == == Maybe the question should be "Why is my automatic transmission not shifting through gears for me as it should?" Could it be a fairly simlpe fix or am I losing my transmission? Yeah Dopey!
Your transmission is going out... Buy a bottle of Lucas transmission fix, pour it in, make sure you warm the veh. up for at least 15 minutes before driving it, and pray it gets you through till you can get a new one. Not fun!!! I had several explorers with this problem. I was able to drive them all for over a year with the lucas trans fix in it before it went ka-put.
I have a 91 that had the same problem. The problem is the lock out solenoid in the transmission. This can be accessed through the side panel of the transmission. Better yet, just un-plug it. Car will run run just fine without it. The wiring going to the transmission on the drivers side, pull the plug and you are good to go.
Transmission overfilled ? so when the transmission fluid is heated up it expands and comes out the vent tube Have you been driving through water ? Got water in transmission so its overfilled , resulting in transmission fluid coming out of vent tube
Probably getting oil in the radiator from transmission cooler that runs through one side of the radiator, outside chance of head gasket problem.
Yes. There are over 150 individual codes for transmission problems that specify exactly which part in the transmission is causing the problem. If the check engine light comes on it may actually be sensing a transmission problem. If you don't have a reader, your local parts store should be able to read it for you and give you some advice on what you will need to do to correct the problem. Transmission code start in the po700 series and continue through the po800's. There are also several that require a dealer handbook to decipher. Good luck.
You fill the transmission through the dipstick
I doubt it is the tps. Could it be the transmission shifting in and out of overdrive?
The problem ended up being the vent port in the top of the transmission housing was plugged with a mud-dobber nest. The nest was probably built when I had the transmission in storage.
I am not an expert but had the same problems. Even though they say that they are not conected. Check the level of your power steering fluid, it takes transmission fluid not power steering. I had a leak in my powersteering hose and would have to constanly refill it, when ever it became low the car would then start shifting hard every now and then. I lost the cap to the powersteering which caused air to get into the lines and again started having hard shifting. After fixing the hose and getting another cap I haven't had a problem since. Like I said I have been told that the two lines are not connected but the problems stopped when I quit getting air in the lines through the lack of cap and through the leaky hose.
Almost all automatic transmissions are filled and checked with the engine running and the transmission in Park. Be sure to let the car run for a while to warm up before checking. while filling, be sure to slowly shift the transmission through all the gears (while still sitting still, parking brake on) and recheck the level after shifting.
you refill the transmission through the dipstick tube.
through the transmission dipstick tube.
Hey Richard==The fuel boils slightly when it stops circulating. No problem. GoodluckJoe There are air bubbles moving through the filter WHILE you're driving. It doesn't hurt anything.
You will need to have a technician scan the computer for codes. It is very possible that you have an oxygen sensor problem.
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