Reduced Engine Power **any ideas** - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

ponbigi · 12-25-2012, 07:45 PM

So on my way to Tucson today, after I kicked on the cruise control, i noticed substantial stutter (jerking) like engine was losing power, regain, lose power, regain etc. Was noticeable but not real bad. On the way home however it was and continued to get a lot worse (over the course of 83 miles). Little background. this is a new llt engine with 6800 miles on it. Was put in the car brand new after major oil change foul up - My car and all other parts has about 52K on it. As i got off my exit and turned to go down my street there was a rather sharp reduced amount of power, so much so, I got the "reduced engine power" on the DIC, Service stabilitrak and 3 other symbols on the tachometer side of the dash. One said "off", the other was squeely tires (zig zag). Reduced engine power warning went away. Any ideas what might cause this? Could this be fuel pump related? I have the extended warranty and of course the 100k powertrain. My car is a 2011, LS, 6 speed manual. Any help would be appreciated.

trooper182 · 12-25-2012, 09:15 PM

Well since you just had your engine replaced, take it to the dealer and let them sort it out.

KMPrenger · 12-25-2012, 09:34 PM

To the dealer....again.

Sorry man.

calbert1999 · 12-25-2012, 09:51 PM

I had the same problem with an engine swap on my vehicle, this issue would happen whenever it was damp outside. Took it to my speed shop and there was a loose wire in one of the AF sensors, they took it apart re-soldered the wires, put it back together and ta-da, problem solved.
Sometimes, just a very minor thing.

Chevrolet Customer Svc · 12-26-2012, 01:35 PM

Quote:

Originally Posted by ponbigi

So on my way to Tucson today, after I kicked on the cruise control, i noticed substantial stutter (jerking) like engine was losing power, regain, lose power, regain etc. Was noticeable but not real bad. On the way home however it was and continued to get a lot worse (over the course of 83 miles). Little background. this is a new llt engine with 6800 miles on it. Was put in the car brand new after major oil change foul up - My car and all other parts has about 52K on it. As i got off my exit and turned to go down my street there was a rather sharp reduced amount of power, so much so, I got the "reduced engine power" on the DIC, Service stabilitrak and 3 other symbols on the tachometer side of the dash. One said "off", the other was squeely tires (zig zag). Reduced engine power warning went away. Any ideas what might cause this? Could this be fuel pump related? I have the extended warranty and of course the 100k powertrain. My car is a 2011, LS, 6 speed manual. Any help would be appreciated.

We apologize for any frustrations that you may be experiencing. You are taking the right steps by going to the dealership to get a proper diagnosis. It might be something that could be covered under your extended service contract. Please let us know any updates!

Brandon
Chevrolet Customer Service

BaylorCamaro · 12-26-2012, 02:06 PM

Couple things come to mind. Do you have an aftermarket intake? It could be a MAF going bad. This sometimes happens when there is a misfire. Wonder if the spark plugs aren't at the correct gap or are fouled.

Might as well take it to the dealer since it is a fairly new engine.

Sent from my SAMSUNG Galaxy S III using telekinesis.

Sikoriko · 12-26-2012, 02:39 PM

Check all your wire fittings, contacts. no issues with bad gas? Did you say was there a check engine light?

SC2150 · 12-26-2012, 02:45 PM

MAF failing I am willing to bet...

ponbigi · 12-26-2012, 03:10 PM

The car is at the dealership... The check engine light went on as i got to the dealership today... Whats real interesting is I just got an oil change 3 weeks ago, maybe 800 miles on it since then and already down to 62% life..... (1st oil change since new install) No after market parts on this car. Completely stock. I thought it might have been bad gas as well but before I left i filled her up with 91 octane.. pardon my ignorance MAF? Manifold??

ponbigi · 12-26-2012, 03:11 PM

One thing I did notice as i got to the dealership and went through the menu. The temp was reading at 212 degrees. thats maybe 10 minutes of driving....

BaylorCamaro · 12-26-2012, 03:17 PM

MAF = Mass Air Flow sensor. But if you're completely stock then it probably isn't that. 212 isnt too abnormal, I'm usually sound 205-210 cruising.

You're convered under warranty so I wouldn't worry. But keep us posted what it is.

Sent from my SAMSUNG Galaxy S III using telekinesis.

SC2150 · 12-26-2012, 05:08 PM

Stock these fail far to often as well. FI pushes them to the limit, but there was such a National shortage the past few years most dealers were out of them from so many failures.

Let us know what they find.

Can't_C_Me · 12-26-2012, 06:00 PM

MAF replacement needed most likely. Especially since you said it happened when damp out. The dealer probably never changed out the oil one. And had it sitting around unprotected when doing the engine swap.

Sent from my Samsung Galaxy S III

ponbigi · 12-26-2012, 06:04 PM

It wasnt damp out, dry as a bone that was said by another guy. I just heard back.

They said it was a Throttle Body failure... Covered under my extended warranty... Thank god.

Anyone with more knowledge about these things please let me know.

12-25-2012, 07:45 PM	#1
ponbigi Drives: 2011 CAMARO LS Join Date: Sep 2010 Location: Chandler, AZ Posts: 326	Reduced Engine Power any ideas So on my way to Tucson today, after I kicked on the cruise control, i noticed substantial stutter (jerking) like engine was losing power, regain, lose power, regain etc. Was noticeable but not real bad. On the way home however it was and continued to get a lot worse (over the course of 83 miles). Little background. this is a new llt engine with 6800 miles on it. Was put in the car brand new after major oil change foul up - My car and all other parts has about 52K on it. As i got off my exit and turned to go down my street there was a rather sharp reduced amount of power, so much so, I got the "reduced engine power" on the DIC, Service stabilitrak and 3 other symbols on the tachometer side of the dash. One said "off", the other was squeely tires (zig zag). Reduced engine power warning went away. Any ideas what might cause this? Could this be fuel pump related? I have the extended warranty and of course the 100k powertrain. My car is a 2011, LS, 6 speed manual. Any help would be appreciated.

12-25-2012, 09:15 PM	#2
trooper182 Drives: 2011 Camaro 1LT yellow non RS Join Date: May 2011 Location: Louisiana Posts: 691	Well since you just had your engine replaced, take it to the dealer and let them sort it out. __________________ Staff Sergeant U.S. Army 13B Gun Bunny. 2011 Camaro 1LT A6 Mods: Pypes bomb V8 exhaust, Magnaflow x-pipe, resonator delete, Roto-Fab cold air intake, Vmax Black Ice-olator, Elite Engineering catch can, painted engine cover and fuse box cover, 3dCarbon Front Fender Vents, Street Scene Front Splitter, ZL1 Side Rockers, Anvil Notch Rear Spoiler, interior/engine bay LED lights, two JL Audio W3's 10" and 1000w kenwood amp

12-25-2012, 09:34 PM	#3
KMPrenger Drives: 16 Camaro SS, 15 Colorado Join Date: May 2009 Location: Jefferson City, Missouri Posts: 13,943	To the dealer....again. Sorry man. __________________ 2016 Camaro 1SS - 8-speed - NPP - Black bowties 2010 Camaro 1LT V6 (Sold. I will miss her!)

12-26-2012, 02:06 PM	#6
BaylorCamaro Track > 1/4 Mile Drives: 2016 C7 Z51 Join Date: Sep 2009 Location: League City, TX Posts: 6,072 View My Garage	Couple things come to mind. Do you have an aftermarket intake? It could be a MAF going bad. This sometimes happens when there is a misfire. Wonder if the spark plugs aren't at the correct gap or are fouled. Might as well take it to the dealer since it is a fairly new engine. Sent from my SAMSUNG Galaxy S III using telekinesis. __________________ Automotive YouTube Channel / Texas World Speedway / MSR Houston

12-26-2012, 03:17 PM	#11
BaylorCamaro Track > 1/4 Mile Drives: 2016 C7 Z51 Join Date: Sep 2009 Location: League City, TX Posts: 6,072 View My Garage	MAF = Mass Air Flow sensor. But if you're completely stock then it probably isn't that. 212 isnt too abnormal, I'm usually sound 205-210 cruising. You're convered under warranty so I wouldn't worry. But keep us posted what it is. Sent from my SAMSUNG Galaxy S III using telekinesis. __________________ Automotive YouTube Channel / Texas World Speedway / MSR Houston

12-25-2012, 09:51 PM	#4
calbert1999 Camaro SS Lover Drives: 2010 Camaro 2SS/RS Black IOM Join Date: Jun 2010 Location: Toronto, Ontario (Canada) Posts: 2,863	I had the same problem with an engine swap on my vehicle, this issue would happen whenever it was damp outside. Took it to my speed shop and there was a loose wire in one of the AF sensors, they took it apart re-soldered the wires, put it back together and ta-da, problem solved. Sometimes, just a very minor thing.

12-26-2012, 02:39 PM	#7
Sikoriko Drives: 2011 V6 IOM Join Date: Jul 2012 Location: San Diego Posts: 1,385 View My Garage	Check all your wire fittings, contacts. no issues with bad gas? Did you say was there a check engine light?

12-26-2012, 02:45 PM	#8
SC2150 Account Suspended Drives: 2012 Camaro RS, RX supercharged Join Date: Dec 2009 Location: Bradenton, FL Posts: 6,063	MAF failing I am willing to bet...

12-26-2012, 03:10 PM	#9
ponbigi Drives: 2011 CAMARO LS Join Date: Sep 2010 Location: Chandler, AZ Posts: 326	The car is at the dealership... The check engine light went on as i got to the dealership today... Whats real interesting is I just got an oil change 3 weeks ago, maybe 800 miles on it since then and already down to 62% life..... (1st oil change since new install) No after market parts on this car. Completely stock. I thought it might have been bad gas as well but before I left i filled her up with 91 octane.. pardon my ignorance MAF? Manifold??

12-26-2012, 03:11 PM	#10
ponbigi Drives: 2011 CAMARO LS Join Date: Sep 2010 Location: Chandler, AZ Posts: 326	One thing I did notice as i got to the dealership and went through the menu. The temp was reading at 212 degrees. thats maybe 10 minutes of driving....

12-26-2012, 05:08 PM	#12
SC2150 Account Suspended Drives: 2012 Camaro RS, RX supercharged Join Date: Dec 2009 Location: Bradenton, FL Posts: 6,063	Stock these fail far to often as well. FI pushes them to the limit, but there was such a National shortage the past few years most dealers were out of them from so many failures. Let us know what they find.

12-26-2012, 06:00 PM	#13
Can't_C_Me Don't Sleep on My V6 Drives: 2016 C7 1LT Join Date: Dec 2010 Location: Oxford, GA Posts: 3,596 View My Garage	MAF replacement needed most likely. Especially since you said it happened when damp out. The dealer probably never changed out the oil one. And had it sitting around unprotected when doing the engine swap. Sent from my Samsung Galaxy S III __________________

12-26-2012, 06:04 PM	#14
ponbigi Drives: 2011 CAMARO LS Join Date: Sep 2010 Location: Chandler, AZ Posts: 326	It wasnt damp out, dry as a bone that was said by another guy. I just heard back. They said it was a Throttle Body failure... Covered under my extended warranty... Thank god. Anyone with more knowledge about these things please let me know.