Car Jerks while running!!!!!!!

[djblastsupratuner]

:1zhelp:My car turns on fine and evrything. You can rev up the engine real hard but when i get on the road and driving with my foot on the gas its fine and then i let go and push in the clutch and then i start jerking crazy. My 2nd gear synchros are screwed up so i have to shift from 1st to 3rd. Ive had 8 people check out my car and they dont know wats wrong. Please help ive had this problem for a while!:1zhelp:

Thanks:cry:
Hector

 

[IwantMKIII]

so to clarify, your car jerks while cruising in neutral?

 

[djblastsupratuner]

Yes and no it does it on neutral and when i press the clutch. dont know wats the issue. thinking someone here who has worked on these cars for years can give me an answer or hint.
Thanks
Hector

 

[IwantMKIII]

Yes and no it does it on neutral and when i press the clutch. dont know wats the issue. thinking someone here who has worked on these cars for years can give me an answer or hint.
Thanks
Hector

when you press the clutch...you are essentially in neutral.

as for why you have your problem, id have to think about it a bit.

 

[cuel]

Were those eight people transmission techs, or just random wanna-be's? I'd say get it in a trans. shop, get second fixed, and go from there. Could be almost anything from a seized caliper with a warped rotor, seized wheel bearings, to broken teeth from the synchro/gear randomly catching in the trans. gears.

Find a real mechanic, and get some diagnostics done.

What is that in your avatar?

 

[sean210]

Is it a real hard jerk or just a slight one?
Mine had a real slight one and it was
because the throttle position sensor came loose and
would lose connection for a little. I wire tied it together and it dont do it
no more. Just my input, May not be your problem but its worth a try.

 

[djblastsupratuner]

Were those eight people transmission techs, or just random wanna-be's? I'd say get it in a trans. shop, get second fixed, and go from there. Could be almost anything from a seized caliper with a warped rotor, seized wheel bearings, to broken teeth from the synchro/gear randomly catching in the trans. gears.

Find a real mechanic, and get some diagnostics done.

What is that in your avatar?

well first off half of those people were real mechanics. Others were friends are pretty good with engines. I have a used 120k 5speed tranny to swap that other tranny. But my other question is how much would this cost me the most if its not the tranny?
And my avatar is an integra or supra don't member which one with 4 tailights of a mk4 put together. Thought it was funny!

 

[djblastsupratuner]

I think I'll take pigs and c wat u think!

 

[cuel]

Trans swap isn't a big deal. I'd say $250, depending on your area. I'd get the flywheel resurfaced, and check/replace the clutch and pressure plate while your there.

As far as what it would cost to fix the problem if its not trans. related, no clue. Don't know what the problem is. I've seen broken diffs show similar symptoms, but they usually howl as well. Once you push in the clutch pedal, you remove the engine from the equation, so it must be something in the drive train or wheels. I'd definitely replace the trans. asap.

Where you gonna take the pigs? They fit in your Supra :biglaugh:

 

[djblastsupratuner]

Trans swap isn't a big deal. I'd say $250, depending on your area. I'd get the flywheel resurfaced, and check/replace the clutch and pressure plate while your there.

As far as what it would cost to fix the problem if its not trans. related, no clue. Don't know what the problem is. I've seen broken diffs show similar symptoms, but they usually howl as well. Once you push in the clutch pedal, you remove the engine from the equation, so it must be something in the drive train or wheels. I'd definitely replace the trans. asap.

Where you gonna take the pigs? They fit in your Supra :biglaugh:

Srry meant pics and idk have pigs LOL!

 

[FranklinWaters]

Is it a real hard jerk or just a slight one?
Mine had a real slight one and it was
because the throttle position sensor came loose and
would lose connection for a little. I wire tied it together and it dont do it
no more. Just my input, May not be your problem but its worth a try.

Mine had the same problem.

 

[djblastsupratuner]

Mine had the same problem.

Mine is a real hard jerk like vroom!! clutch jerk! Jerk! Jerk! vroooom!! jerk jerk jerk jerk!

 

[FranklinWaters]

Yeah, mine was more like a wooden roller coaster going up the first hill. Very jerky. What I have learned with my supra, take your time with it and you will find out what is wrong with it. Plus, more stuff will keep popping up

 

[CyFi6]

i would check your engine/tranny / diff mounts and driveshaft before anything else. If these things are cocked at a bad angle when no power is being inputted the u joints might be try to turn at an angle they cannot turn at, which would cause all kinds of weird jerking and or vibrations.

 

[djblastsupratuner]

i would check your engine/tranny / diff mounts and driveshaft before anything else. If these things are cocked at a bad angle when no power is being inputted the u joints might be try to turn at an angle they cannot turn at, which would cause all kinds of weird jerking and or vibrations.

I'm going to check my timing and cps first and if that doesnt work than I'm going to get an used jdm LSD with an aluminum drive shaft and my r154 tranny to c if that would fix it.

If not than ima have 2 sell it and I hope I can get at least 1600.