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4+3 suddenly very difficult to shift

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Old 11-28-2017, 06:53 PM
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Bfenty
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Default 4+3 suddenly very difficult to shift

so in the last few days it has suddenly gotten nearly impossible to shift. This is while moving or stationary. I have really push to get it into any gear, then it suddenly 'pops' in. 1st gear is probably the hardest, but all forward gears are difficult. reverse grinds pretty badly, a problem i've not had before.

when parked, the first time shifting into a gear is difficult, but then the shifter feels like it aligns something and i can easily slide into and out of gear. start the engine, however, and that is no longer the case-it's nearly impossible to shift again.

I'm suspecting synchronizers-what gets me is this problem has seemingly appeared out of thin air. I noticed it was a little difficult to shift yesterday and today i am afraid to shift for fear i won't be able to get into gear.

any insight? 1985 4+3 with factory everything and 86k miles on it.
Old 11-28-2017, 08:52 PM
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More info:

I've read it could be a clutch that does not fully disengage. I am not sure this is the issue, because the car does not try to move at all when I start it with the clutch depressed and in gear (This is usually how I start the car).
Old 11-28-2017, 10:39 PM
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jv9999
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In all gears? Even with the engine not running?
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Old 11-28-2017, 10:47 PM
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Red 91
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Clutch
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Old 11-28-2017, 10:50 PM
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dclafleur
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Could you have a worn reverse lockout rod? The ends of them fray and interfere with shifting between gears sometimes. Richard Newton had a good article on it a long time ago..
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Old 11-29-2017, 05:41 AM
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Originally Posted by jv9999
In all gears? Even with the engine not running?
In all gears. It’s much harder with engine running. Doubt it linkage because of this.
Old 11-29-2017, 05:42 AM
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Originally Posted by dclafleur
Could you have a worn reverse lockout rod? The ends of them fray and interfere with shifting between gears sometimes. Richard Newton had a good article on it a long time ago..
it’s possible? It’s a lot easier with engine not running though.
Old 11-29-2017, 05:43 AM
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Originally Posted by Red 91
Clutch
can you elaborate? Do I need a new clutch, or do you mean it’s just not disengaging? What should I check?
Old 11-29-2017, 10:05 AM
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Doing more reading, it is almost certainly a clutch issue. I’ll continue to update as I figure more out, but please, if you have further advice on how to proceed please let me know.
Old 11-29-2017, 12:00 PM
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Originally Posted by Bfenty
Doing more reading, it is almost certainly a clutch issue. I’ll continue to update as I figure more out, but please, if you have further advice on how to proceed please let me know.
Have you checked your Clutch Master?
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Old 11-29-2017, 12:48 PM
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Add fluid, bleed system, check for leaks. Good Luck!
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Old 11-29-2017, 01:21 PM
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Originally Posted by s carter
Have you checked your Clutch Master?
How would I check it? Sorry I'm really quite dumb when it comes to the clutch system. I get that it is hydraulic and there is probably low pressure, which is allowing my clutch pedal to travel too easily and not disengaging the clutch fully when it is depressed. Not really sure how to check these things to make sure they are working correctly, however.

Add fluid, bleed system, check for leaks. Good Luck!
Thanks! What kind of fluid do I add? DOT3 brake fluid? It says to only add DOT3 fluid on the cap and I've read to use brake fluid some places but want to make sure first. Anything else I should know, again remembering that I've never touched a clutch before in my life?

Thanks guys! If it is the clutch/pressure plate itself, I think I am probably going to take it to the shop and let them deal with it. I'm a shade tree mechanic and I don't have the ability to drop a transmission out of the car.
Old 11-29-2017, 08:06 PM
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Yes, it is brake fluid. You bleed these just like brakes. There should be a bleeder valve between the master and the tranny. It is common for the master cylinder to go bad, just like a brake master cylinder goes bad. They're not too difficult to replace.
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Old 11-30-2017, 12:04 PM
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I may be an idiot and just have low clutch fluid. I'll check the levels and add some if necessary and report back. If the fluid is low, I would assume I need to start looking for a leak. What is the best method to diagnose where the problem is?
Old 11-30-2017, 12:23 PM
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Originally Posted by Bfenty
I may be an idiot and just have low clutch fluid. I'll check the levels and add some if necessary and report back. If the fluid is low, I would assume I need to start looking for a leak. What is the best method to diagnose where the problem is?
At the firewall where the master cylinder passes through to the clutch pedal feel around the carpet see if there's a damp spot, underneath the master cylinder at the base of the reservoirs, at the slave cylinder under the car where the line attaches to it feel around it, although there you might see a drip or two on the ground.
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Old 11-30-2017, 01:32 PM
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Originally Posted by dclafleur
At the firewall where the master cylinder passes through to the clutch pedal feel around the carpet see if there's a damp spot, underneath the master cylinder at the base of the reservoirs, at the slave cylinder under the car where the line attaches to it feel around it, although there you might see a drip or two on the ground.
I've been fairly conscious of leaks and haven't noticed anything on the garage floor but I will double check.
Old 11-30-2017, 08:02 PM
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Well-it is NOT the clutch fluid. That was a tiny bit low (Still within the lines, though) so I topped it off. Went to start it and it rolled even with the clutch entirely depressed-clearly the clutch is not disengaging. I'm not even sure I can drive it to the shop, might have to trailer it. It's amazing how bad it got in such a short time frame.

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Old 11-30-2017, 08:25 PM
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Originally Posted by Bfenty
Well-it is NOT the clutch fluid. That was a tiny bit low (Still within the lines, though) so I topped it off. Went to start it and it rolled even with the clutch entirely depressed-clearly the clutch is not disengaging. I'm not even sure I can drive it to the shop, might have to trailer it. It's amazing how bad it got in such a short time frame.
is the Pedal Stiff/hard to push down
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Old 11-30-2017, 08:40 PM
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tried pumping it up-it's not really helping
Old 11-30-2017, 08:59 PM
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Originally Posted by Bfenty
tried pumping it up-it's not really helping


am i off base thinking its the hydraulic cylinder/piston that is operated by the clutch pedal?

my guess is the oring inside is shot letting pressure seep past and its not building enough pressure to disengage clutch.
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