The gears will lock up and I cannot shift into any gear?

Tiny
GRLFRMOLY
  • MEMBER
  • 1998 FORD CONTOUR
  • MANUAL
  • 345,000 MILES
At random, after I've been driving for maybe 10 minutes or more, the gears will lock up and I won't be able to shift into any gear. I shut off the engine for a few minutes or less, then restart and it shifts as usual but only until it decides to lock up again.
Wednesday, July 13th, 2022 AT 4:45 PM

22 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,310 POSTS
Hi,

When this happens are you moving and the wheels lock or do you mean the shifter itself won't move?

If it is the shifter itself that is causing the issues, it could be a bushing or adjustment issue with the shift cables. I attached a pic below showing them.

Check to make sure where the cables connect to the transmission there is no excessive play or worn nylon bushings,

Let me know. Also, if this only happens when stopped, there could be an issue with the clutch master cylinder or slave cylinder. Let me know if the clutch pedal feels normal. Also, the clutch master cylinder gets fluid from the brake master cylinder. Make sure the brake fluid is full.

Take care,

joe

See pic below.
Was this
answer
helpful?
Yes
No
Wednesday, July 13th, 2022 AT 11:01 PM
Tiny
GRLFRMOLY
  • MEMBER
  • 12 POSTS
Now that you mentioned it, I remembered that I had stopped in driveway and at a traffic light when gears locked up (just shifter, not wheels), but the clutch pedal felt normal. I filled brake fluid and about a day later noticed I had lost a very small amount but I keep forgetting to check under the car, when parked, for signs of leakage.

I just had a friend drive it about 30-45 miles to his mechanic and he said, of course, he had no problems. I told him to get rid of the Bible that had been left in the rear window when he first bought the car. :)

I was also wondering if there is any way to relax the tension, slightly, on the clutch pedal? It's very hard to depress compared to the gas which affects my rhythm, but I also have some issues with my left foot/ankle which can make it hard to drive.

And thank you so very much for your help!
Was this
answer
helpful?
Yes
No
Thursday, July 14th, 2022 AT 2:10 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,310 POSTS
Hi,

Have you rechecked to see if the clutch MC fluid has gone down again? Check that first. If this happens again, I need you to try something. Turn the engine off and see if you can shift it. If you can, and then can't when it's running, we need to figure out what is failing in the clutch hydraulics.

As far as making the clutch pedal easier to press, you really can when they are hydraulic. There isn't an adjustment. If it is extremely hard, it could be the pressure plate itself that is causing issues.

Let me know what you find.

Joe
Was this
answer
helpful?
Yes
No
Thursday, July 14th, 2022 AT 7:33 PM
Tiny
GRLFRMOLY
  • MEMBER
  • 12 POSTS
The gears do shift when the engine is off. I was told by my friend's mechanic that there is a very small leak in the slave cylinder and that I would be okay for now if I made sure to keep the brake fluid full (which might explain why it doesn't happen all of the time) since there doesn't appear to be a master cylinder.

I don't know that he has time in the immediate future to do the work necessary to fix the leak, but I also don't know if I can afford to take it to a shop. Will this be safe enough, temporarily? I just want to know I can drive without the gears locking up on me at a traffic light during rush hour traffic, or if I should have to down shift on the freeway.
Was this
answer
helpful?
Yes
No
Friday, July 15th, 2022 AT 2:39 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,310 POSTS
Hi,

That's a hard question to answer. It really matters how bad the leak is at the slave.

There is a clutch master cylinder attached to the clutch pedal. See pic 1. If you look at the arrows, fluid comes from the brake master cylinder and then is sent to the slave.

Since the brake MC is also the fluid reservoir for the clutch MC, you really need to keep an eye on the brake fluid. Note that the transmission will need to be removed for the slave to be replaced.

On a good note, the transmission gears aren't the problem. It's the clutch that won't disengage the engine and transmission so you can shift.

Let me know if this helps or if you have other questions.

Take care,

joe
Was this
answer
helpful?
Yes
No
+1
Friday, July 15th, 2022 AT 9:58 PM
Tiny
GRLFRMOLY
  • MEMBER
  • 12 POSTS
Second question: the battery was tested, and I was told that the battery was not maintaining its charge when using any accessories (including headlights) while engine was running. I'm unsure of what this means. Bad battery? Bad alternator?
Was this
answer
helpful?
Yes
No
Wednesday, July 20th, 2022 AT 4:23 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,310 POSTS
Hi,

There is a really easy way to determine if the alternator is doing its job. If it is, then the battery is the likely issue.

All you will need is a multimeter or voltmeter. Follow the directions in this link and let me know the results.

https://www.2carpros.com/articles/how-to-check-a-car-alternator

I will watch for your reply.

Joe
Was this
answer
helpful?
Yes
No
Wednesday, July 20th, 2022 AT 8:32 PM
Tiny
GRLFRMOLY
  • MEMBER
  • 12 POSTS
Putting battery issue aside for a moment, I have another question. The shifter continues to randomly get stuck between gears. My friend, the man I bought the car from, had to pick it up last night and as usual had no issues while driving it here. During our conversation he kept suggesting that I must be doing something wrong.

It is my belief that you either do, or do not comprehend how to operate a manual transmission, but I could be mistaken? So, my question is this: is there wrong way to drive a clutch, and wrong in such a way that would cause the shifter to randomly lock up between gears? I have driven them all throughout my life and have never had a problem but thought I should get a professional opinion before I express to him how ignorant and insulting that comment was. :)
Was this
answer
helpful?
Yes
No
Saturday, July 23rd, 2022 AT 3:25 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,310 POSTS
Hi,

Like you, I have always had a manual transmission. Either you shift or you don't. I have no idea what he is referring to. Did you ask?

If you purchased the vehicle from him, maybe he is familiar with how it shifts, or something is different that he doesn't recall. Shifting my vehicle is second nature and I don't think about it.

Let me know.

Joe
Was this
answer
helpful?
Yes
No
+1
Saturday, July 23rd, 2022 AT 9:25 PM
Tiny
GRLFRMOLY
  • MEMBER
  • 12 POSTS
Thank you! I did not ask them, but I plan to. If he has a legitimate answer, I can at least consider it, but I doubt that will be the case. I just wanted a professional opinion before I told him how ridiculous and insulting I thought that comment was.
Was this
answer
helpful?
Yes
No
Sunday, July 24th, 2022 AT 2:45 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,310 POSTS
Hi,

You are very welcome. He may be so used to it that he forgot. I've had vehicles like that. Some required me to pull harder one way or the other for it to shift. Mostly, it was just from wear. Hopefully, that is what it is.

Take it easy on him. LOL

Take care of yourself,

Joe
Was this
answer
helpful?
Yes
No
Sunday, July 24th, 2022 AT 7:20 PM
Tiny
GRLFRMOLY
  • MEMBER
  • 12 POSTS
Hypothetically speaking, before selling a much older car with a manual transmission would you at least check the clutch/cylinders/cables, etc, to be sure that what drives the car is intact and functioning properly?

My friend had his friend, the mechanic, check out the car and drive it for a few days to be sure everything was working. I do believe the mechanic is competent but when I asked my friend why the leak in the slave cylinder wasn't noticed before, he told me it's not common to check for something like that. True/False?

Also (I have many questions!), If you have to remove the transmission to access the slave cylinder to repair the leak, how would you know there Was a leak without removing the transmission to access the slave? And if it's a "code" thing, wouldn't it have registered when checking them the first time?

Again, I truly value your time, and sincerely appreciate all of your help. I am always grateful for the chance to learn. :)
Was this
answer
helpful?
Yes
No
Wednesday, August 3rd, 2022 AT 10:38 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,310 POSTS
Hi,

It really isn't a common thing to check unless there are problems, or the clutch fluid is very low. Also, this wouldn't have set a diagnostic trouble code because it's mechanical and not electrical.

As far as seeing the leak, once there is enough leaked, most times you will see fluid at the base of the bell housing where the transmission and engine are mounted together.

Let me know if that helps or if you have other questions.

Take care,

Joe
Was this
answer
helpful?
Yes
No
+1
Thursday, August 4th, 2022 AT 4:34 PM
Tiny
GRLFRMOLY
  • MEMBER
  • 12 POSTS
Thank you for explaining that. He's safe for a minute. :)

Back to the shifter.

The shifter is still getting stuck between gears, even when the brake/clutch fluid is filled to maximum level. The clutch pedal feels normal, and I can always tell when it is going to happen because the few shifts before are noticeably rougher than usual. Does that help at all with the process of elimination?

If it turns out to be an issue with the cables or bushings, would that be an easier fix than removing the transmission, etc?
Was this
answer
helpful?
Yes
No
Friday, August 5th, 2022 AT 12:05 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,310 POSTS
Hi,

Removing the transmission isn't a fun job. LOL If I had to pick, I would rather replace the linkages.

As far as it getting more difficult to shift before you are unable to, that sounds like we are losing pressure in the hydraulics. Did the original owner have any similar issues?

Joe
Was this
answer
helpful?
Yes
No
Friday, August 5th, 2022 AT 4:52 PM
Tiny
GRLFRMOLY
  • MEMBER
  • 12 POSTS
No, the previous owner did not have a problem with this. I think he actually thinks I'm imagining it or making this up.

So, I was reading comments from another site and saw someone describe the exact problem I'm experiencing. A following comment said, "sounds like your clutch is going bad."

Does this problem mean, necessarily, that the clutch is going bad? I'm assuming you would have already said so, if that were the case, but thought I'd ask anyway to be sure. If it is going bad, I'll just let him buy the car back.
Was this
answer
helpful?
Yes
No
Saturday, August 13th, 2022 AT 9:34 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,310 POSTS
Hi,

No, the clutch wouldn't be the issue. Instead, it could be related to a cylinder or clutch Master Cylinder.

I do have a question just to confirm. Does it ever jamb when you have the engine off and are parked?

Let me know,

Joe
Was this
answer
helpful?
Yes
No
+1
Sunday, August 14th, 2022 AT 7:13 PM
Tiny
GRLFRMOLY
  • MEMBER
  • 12 POSTS
So far, it shifts as it should when the engine is off. I test it every time I use the car. I didn't have a problem the last few times I drove, but I didn't go more than a few miles. I'm still afraid to take it on the freeway.

I also noticed that the leak is not exactly a small leak, like my friend said. I see small to medium sized spots where car is usually parked. There are more than a few, and the largest one looks like it's the most recent. That's telling me the leak is worsening rapidly, like every time (maybe every other time) I use the car. I'm also wondering, if the slave cylinder is what's leaking, what exactly is it leaking?
Was this
answer
helpful?
Yes
No
Monday, August 15th, 2022 AT 2:17 AM
Tiny
GRLFRMOLY
  • MEMBER
  • 12 POSTS
And again, thank you so very much for being so willing and able to answer my many questions. I always appreciate learning something new and your answers are always well explained, and easy to understand. I truly appreciate your help. :)
Was this
answer
helpful?
Yes
No
Monday, August 15th, 2022 AT 2:24 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,310 POSTS
Hi,

Based on where you see the leak, it is likely the slave cylinder. It isn't uncommon for them to fail. Also, since the transmission shifts normally when the engine is off, that somewhat points a finger at the hydraulics. Just continue to make sure the fluid level is full.

Let me know if you have other questions or if I can help in any way.

Take care,

Joe
Was this
answer
helpful?
Yes
No
+1
Monday, August 15th, 2022 AT 6:55 PM

Please login or register to post a reply.

Sponsored links