crAzy95Z28

iTrader: (3)

Well after almost two years owning a 6 speed i have noticed something that might not be normal... Alright ill try to explain this as best as possible.

Sometimes in 1st, 2nd and 3rd gear around 1800-2100 rpms. I feel the car fall on its face. Like the clutch may be slipping or not grabbing. It also feels like it loses power. This is all at 1/6th to 1/4th of throttle power. Its very strange. Now could the throw out bearings in the clutch be causing this? It happens quite often now and has been getting a bit annoying lately.

Basically 2nd gear is the worst. If i roll through a light/stop sign at 5-10mph in 2nd gear the power is there, but as soon as i hit this certain rpm range 1800-2100 it basically falls on its face and then catches again. Anyone know from experience what this may be?

Btw this is on my Z06.

disc0monkey

iTrader: (10)

if there is no "revs" check valvesprings, or computer is pulling timing.

crAzy95Z28

iTrader: (3)

Car has been tuned. Have never touched the valvesprings. No need to yet. Only has 60k miles on it and its an 03.

jmd

iTrader: (4)

R,
It's not a clutch/trans issue.
J

cwdub4

iTrader: (3)

Im pretty much having the same problem, everytime i get on the gas from shifting to 2nd it seems like the car chokes and it is very annoying! and it happens like u said on a low rpm. i could be crusing in 4th at like 2k rpm and punch it a bit and it does that crap!!! BTW i got a 99 camaro ss

disc0monkey

iTrader: (10)

they do break on stock z06s. it takes 15 min to pull the covers.

70Novaproject

If the clutch was slipping or any other part that could release/disengage, one would think you would see an increase in rpm when under load/power. Sounds more like a spark, fuel, or wiring gremlin issue since its always around the same rpm regardless of gear or speed you drive.

wssix99

iTrader: (5)

Sounds a lot like a dirty MAF that might need to be cleaned. What kind of air filter do you have?

crAzy95Z28

iTrader: (3)

I heard it was with early and late model 02's. Mine is an 03 and its a late production to where they fixed the valvespring problem. From what ive read on CF.

crAzy95Z28

iTrader: (3)

I cleaned the maf not too long ago (month or so with rubbing alcohol and Qtip. Was very careful) and i have a K&N that came with my vararam.

disc0monkey

iTrader: (10)

then don't check, keep reading the forums. you have the same symptoms i have seen in cars with broken valve springs. i found myself blessed I just happened to pull the valve cover before we lost a valve. and half my ***** under the windshield lol. chances are its not the valve spring but unless you know someone hasnt jumped into your cold car and reved the **** out of it, valet, dealers, previous owners, I would look. you know how many people don't realize they have broken ones till they do a cam swap. im sure your **** aint underwarranty, 15 min can save you 5g, just sayin.


goodluck, tom

crAzy95Z28

iTrader: (3)

Alright ill have to check it in this weekend. Question about the VS, will they be cracked looking or what? How to tell if broken spring? Plus i know i can get these cheap correct? Specially from gmpartsdirect. I can do the work myself if it comes to changing out the vs. Just would have to pick up the tool from AZ or OR or something.

wssix99

iTrader: (5)

That could be causing a problem, if the K&N oil is contaminating your MAF: http://wiki.answers.com/Q/Why_ethyl_...action_solvent Alcohol is not an ideal solvent for oil, so the Q-Tip may have done more for you than the alcohol. As well, cleaners will contaminate your MAF or cause dust, etc. to stick.

For MAF sensors, you should use a special MAF cleaner or a non-residue electrical contact cleaner. I used the non-residue cleaner on my MAF (with a Q-Tip) and it did wonders. (I also ditched my K&N after that and the problem never came back.)