[Z06] engine hesitating after 6k RPM
08-13-2008, 09:59 AM
#41
Burning Brakes
John, I may need to come see you and let you check it out! I took it for a short spin last night before the bottom fell out and it's running good as new, I just don't want this to be a continueing and returning problem. I don't know much about timing, tuning, or air/fuel ratios on new cars, i'm more familiar with old school tuning, carbs, caps, rotor buttons. I may just do some mods and get it tuned!
08-13-2008, 10:06 AM
#42
Pro
John, I may need to come see you and let you check it out! I took it for a short spin last night before the bottom fell out and it's running good as new, I just don't want this to be a continueing and returning problem. I don't know much about timing, tuning, or air/fuel ratios on new cars, i'm more familiar with old school tuning, carbs, caps, rotor buttons. I may just do some mods and get it tuned!
08-13-2008, 10:17 AM
#43
Burning Brakes
Maybe we can gather some helpful infomation and get it back to these guys.
Last edited by 98ramair; 08-13-2008 at 10:22 AM.
08-13-2008, 10:26 AM
#44
Drifting
I have 6k on my car, bone stock 08 with no issues.
I think this sounds like a sensor problem to me. Maybe you can ask the dealer to replace a bunch of sensors?
Maybe start with just the IAT, MAF? While you're at it, ask for a new fuel filter too haha.
I think this sounds like a sensor problem to me. Maybe you can ask the dealer to replace a bunch of sensors?
Maybe start with just the IAT, MAF? While you're at it, ask for a new fuel filter too haha.
08-13-2008, 01:15 PM
#45
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If it is a sensor, shouldn't the CEL come on??
08-13-2008, 01:31 PM
#46
Le Mans Master
Only if the sensor is giving out-of-range readings. Sometimes the MAF will give inaccurate readings for a variety of reasons (dirt), but within the anticipated range, so engine performance degrades but no DTC's are set and no CEL.
08-13-2008, 03:22 PM
#47
Pro
08-13-2008, 06:36 PM
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Maybe we can gather some helpful infomation and get it back to these guys.[/QUOTE]
That would be awesome if you were able to find something. Please do post if you find something. By the way I am leaning towards it being heat related, I did a little drive this morning when the temp was in the late 70's and the car felt awesome and another drive this afternoon with the temps around 100 and it was doing the same things as previously discussed.
That would be awesome if you were able to find something. Please do post if you find something. By the way I am leaning towards it being heat related, I did a little drive this morning when the temp was in the late 70's and the car felt awesome and another drive this afternoon with the temps around 100 and it was doing the same things as previously discussed.
08-14-2008, 08:56 AM
#49
Burning Brakes
I went for a ride yesterday afternoon, it was around 80 degrees here and the car ran perfect.....i'm starting to think it is temp. related also! Drove around for about an hour and ran strong the entire time!
07-15-2011, 12:32 AM
#51
Burning Brakes
I've had it for almost 3 years now. It is only noticeable after 6k rpm after a few pulls. And really start to notice in 3rd then 4th very obvious. 1st & 2nd fast as hell. Do to these conditions it is impossible to duplicate with the dealer mechanic in the car. The problem is never noticeable on the street here where i live because of traffic. The track however is not fun anymore.
07-31-2011, 09:46 PM
#53
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This is probably why there was no more answers on here, but the car just got better. It's pulling hard all the way to redline now, even in 3rd and 4th, with no pinging like before. It must have been a bad tank of gas or something similar. The beast is back, thank goodness.
08-11-2011, 05:16 PM
#55
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Did any one figure out what is causing this? I have the same problem in my 07 Z06, first the dealer told me its the o2 sensor, than it was the CATS and from some other threads I read they claimed its the alternator. I replaced them all but I am still loosing power over 4k rpm. If anyone has figured this out please help.
08-12-2011, 10:02 AM
#57
Did any one figure out what is causing this? I have the same problem in my 07 Z06, first the dealer told me its the o2 sensor, than it was the CATS and from some other threads I read they claimed its the alternator. I replaced them all but I am still loosing power over 4k rpm. If anyone has figured this out please help.
Thanks,
Laura
GM Customer Service
02-14-2016, 07:10 PM
#60
Burning Brakes
Bringing this one back..
My 06, 44k, heads, cam, mf103, stock exhaust; was going flat over 5k on its last drive. Running fine everywhere else, and no CEL - but over 5k (even at lighter throttle) the exhaust note goes flat and boomy and power isn't there. Those behind me said it was going really rich as well (out the tail pipes visibly).
My guess was fuel or dirty maf etc. I haven't messed with it yet - but any thoughts?
Thanks gents
My 06, 44k, heads, cam, mf103, stock exhaust; was going flat over 5k on its last drive. Running fine everywhere else, and no CEL - but over 5k (even at lighter throttle) the exhaust note goes flat and boomy and power isn't there. Those behind me said it was going really rich as well (out the tail pipes visibly).
My guess was fuel or dirty maf etc. I haven't messed with it yet - but any thoughts?
Thanks gents