S2000 Under The Hood S2000 Technical and Mechanical discussions.

1st Gear Trouble

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Old 06-24-2006, 12:13 PM
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Hey guys, I just recently bought my s2k. Its a 2003, and I bought it with 25,000 miles. Sometimes when I get on it in 1st gear, its as if it pops out of gear around 6k and over revs. Any ideas? It doesnt happen very often, probably 5 or 6 times. I don't run the car to death, but a few times when I run the car hard it has done this. Any ideas?
Old 06-24-2006, 12:36 PM
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1st and 2nd gear syncro's may be bad.
Old 06-24-2006, 12:40 PM
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I did some reading and it sounds like this may be common among S owners. Well atleast some. Guess I should get it checked out regardless.
Old 06-24-2006, 12:52 PM
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The synchros do not hold it in gear. More likely is a shaft or bearing out of spec that allows the gear to travel.

This is not normal or even common for the transmission, although AHM has fixed a number that did not stay in gear, mostly slipping out of fourth.

If you still have warranty coverage be sure to take it in and document the problem. It will be a fairly expensive fix and you want them to cover it.
Old 06-24-2006, 12:52 PM
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My tranny slices through the gears like butter.





*knocks on wood*
Old 06-25-2006, 06:40 AM
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Originally Posted by cdelena,Jun 24 2006, 12:52 PM
The synchros do not hold it in gear. More likely is a shaft or bearing out of spec that allows the gear to travel.

This is not normal or even common for the transmission, although AHM has fixed a number that did not stay in gear, mostly slipping out of fourth.

If you still have warranty coverage be sure to take it in and document the problem. It will be a fairly expensive fix and you want them to cover it.
Thanks for the info I'll try to get it checked out asap
Old 06-25-2006, 11:06 AM
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Originally Posted by cdelena,Jun 24 2006, 01:52 PM
The synchros do not hold it in gear. More likely is a shaft or bearing out of spec that allows the gear to travel.
There is a TSB on popping out of 2nd gear for 04-05 cars, at high RPM. TSB#05-009.


The TSB involves replacing 1st gear, 2nd gear, hub, sleeve, and 1st and 2nd gear synchros.
Old 06-25-2006, 11:47 AM
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Someone told me in the Mid-Atlantic forums that if the engine temp. isn't high enough that the ecu will shut me down if going into VTEC.. Not that I don't trust him, but I'd like to hear what the rest of you all think.
Old 06-25-2006, 03:24 PM
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Originally Posted by Naturul,Jun 25 2006, 01:47 PM
Someone told me in the Mid-Atlantic forums that if the engine temp. isn't high enough that the ecu will shut me down if going into VTEC.. Not that I don't trust him, but I'd like to hear what the rest of you all think.
Believe it! Typically "3 bars" on the temp guage.
Old 06-25-2006, 04:43 PM
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Sweet. I do believe that this could be the case then and I may not have any trouble at all. Thanks!


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