2010 Kia Forte Koup SX
142k Miles
2.4l 6 speed manual trans.
Randomly you will shift into neutral or out of a gear. Then when going back into a gear (gear is not dependant can do it in any gear) it just wont go. The gearshift just hits a "wall" and wont go. Releasing clutch a few times and depressing it and it will eventually go into gear. Replaced the master cylinder and still doing it. Otherwise the car rides fine. No grinding noise when shifting, when it shifts it shifts perfect but when it doenst, it wont do anything.
Any ideas?
If you're lucky you have air in the clutch line that is causing the clutch to sometimes not release fully. Since pumping the clutch pedal seems to improve the situation this seems like a possibility. It's also possible there is a problem with the slave cylinder. (If you're unlucky it's wear in the transmission.)
Ok update, its the wifes car. she just called. Had the lines blead again, drove fine to her work. She was then sitting in the parking lot waiting ot go in then decided to move the car to a different spot. Clutch pedal pressed wouldnt go into gear. Then it finally went into gear she was waiting for traffic to pass by and the car stalled with the clutch pedal down as if she greenhorned it but she wasnt moving just clutch pedal to the floor. Restarted car, got it into gear and pulled out just fine. Then next pullout wouldnt go into any gear tried them all.
Next trial after in 1st it wouldnt come out of first with pedal pressed down. Seems the clutch isnt engaging/disengaging properly am i correctin that assumption?
That certainly seems to be the case. How was the clutch bled? Some are notoriously difficult and require power bleeding. As mentioned it's also possible that there is a problem with the slave cylinder. (I don't know if it's internal or external on that vehicle.)
Internal slave sadly. Not sure of the bleeding of the master the shop did it, im at work and she took it. We dont seem to have any leeking fluid but with internal i guess thats normal we wouldnt see it.
I will say when it does shift its smooth as butter, easy in and out. Pulling out on steep hills, no issue at all, no clutch slipping or high revving etc.
Almost has to be air getting into the system or slave cylinder not completely doing its job. Might want check on a forum devoted to that model for any specific tricks that apply to bleeding the clutch:
https://www.forteforums.com/forums/
Usually when a manual transmission pops out of gear it's because the gears are worn. You could try draining and refilling the transmission with fresh fluid. That might help some.
it doesnt pop out of gear. it just wont go into gear randomly.
Well then maybe the problem is more along the line of what @chucktobias says.
Do you all think the safe bet would be do the slave and clutch kit replacement on the whole thing? Is their any way to determine if its somthing else before doing this work?
New clutch package - disc, pressure plate, throwout bearing, pilot bearing.
Does it seems reasonable to think its the slave cylinder based off thsoe comments i had above? And yea since its internal slave cylinder i would do the entire clutch package at the same time. no reason not too.
Should i replace the flywheel too? the mechanic im talking to is saying i should replace it as well while he is in there? thoughts?
That's pretty much a judgement call assuming you decide to go with the full clutch replacement. Normally when I did clutches myself I had flywheels resurfaced at a machine shop if there was minor scoring and otherwise left them alone. However that was all ages ago and I have no idea how well Kia flywheels hold up. Might be best to go ahead and replace it while in there. Whatever you decide on that don't forget to replace the pilot bearing along with everything else. I'd also exhaust all other options before committing to the clutch job. On a Kia with that kind of age and mileage, best not to put more money into it than you have to.
IM not sure of any other options we could check its only problem in the entire car is not wanting to go into gear sometimes. It never grinds going in, never pops out, pulls out just fine when in gear, even on hills smooth. not sure what other part could cause a car to not go into gear other than the parts associated with the clutch
In the old days, the clutch slave cylinder was external and easily accessible. Not anymore. If you have to pull the trans to get to the slave, you might as well do the whole job. I would. Before doing that, you might get lucky to find out that the nylon bushing at the bottom end of the shift lever is worn out and needs replacing (about$5) but I've never been that fortunate.
would this cause it to be intermittent? also this wouldnt cause the car to stall when clutch pedal is down and in gear. It only has done this once but it was as if the clutch was releasedwithout giving it gas.
Any chance this is the clutch delay valve or no?
Should i replace the flywheel too? the mechanic im talking to is saying i should replace it as well while he is in there? thoughts?
No way, just a waste of money. If the flywheel is surface cracked or gummed up, it can be cleaned up at a machine shop. But then, the "mechanic" won't be able to charge you as much.
Just got a quote full new setup, everything you said parts and labor $1200.
That sounds fair considering the labor involved. I just hope there is nothing actually wrong with the transmission itself.