Engine hesitation - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Frankzl1 · 06-03-2012, 11:38 AM

Guys - have you experienced any engine hesitation while driving? Every time I drive between 30 - 40 miles or when RPM's are between 1,000 to 2,000 - I'll get engine hesitation.

Thanks in advance for your help.

P.S. I have already changed engine oil,spark plugs, cleaned MAF and added fuel additive

1st Gen Forever · 06-03-2012, 11:59 AM

I'm surprised your ZL1 would already need new spark plugs and a fuel additive. Here's a thread I started on a similar issue with mine but little different and hard to reproduce.

http://www.camaro5.com/forums/showthread.php?t=228001

Frankzl1 · 06-03-2012, 12:08 PM

I changed the spark plugs just rule things out and I am not getting any codes

RoketRdr · 06-03-2012, 12:15 PM

What's the mileage and do you have a manual or auto? Give it a battery nap for 10 minutes so it dumps all the tables and starts fresh on the cals and see if that fixes it.

Frankzl1 · 06-03-2012, 12:29 PM

Quote:

Originally Posted by RoketRdr

What's the mileage and do you have a manual or auto? Give it a battery nap for 10 minutes so it dumps all the tables and starts fresh on the cals and see if that fixes it.

Is an auto and it has 1800 miles.I disconnected the battery just for a few seconds - ill try for 10 min.

Thank you guys!!!

RoketRdr · 06-03-2012, 12:41 PM

Quote:

Originally Posted by Frankzl1

Is an auto and it has 1800 miles.I disconnected the battery just for a few seconds - ill try for 10 min.

Thank you guys!!!

A few seconds isn't enough to dump all the power stored in the capacitors. Pull it for about 10 mins then go for a spin. Drive it for at least 10 miles going through normal city driving and a short run on the freeway so it starts relearning. If you got some bad gas it could cause this problem as well.

hognutz · 06-03-2012, 01:31 PM

there is almost 0% chance the plugs or anthing to do with lubrications. on something this new you should never change the plugs just inspect them. once you learn how to read plugs you would imediatly know if there was an issue or not just by looking at them.

bad fuel usually just caused it to run bad period. my .02 is take it to the dealership if it is repeatable. why waste your time and money with such a new car?

on a car this new it could be an issue with the programing. if it is partial throttle it could be any number of feedback systems for the injection system. a bad knock sensor, TPS senor, etc could cause the car to behave eratically.

does it go away if you just floor and and go into open loop and just rely on the spark fuel tables in the tune?

Frankzl1 · 06-03-2012, 03:06 PM

It might be bad gas, because it happened after I filled up a 1 week ago, but I have refilled since then and that's why I put the additive-it didn't do anything.

I am disconnecting the battery and I'll let you guys know

Frankzl1 · 06-03-2012, 07:21 PM

I disconnected the battery, didn't take The issue away,but it got much better-I am taking to mechanic tomorrow and lets see what happens.

Thanks again!!

OldScoolCamaro · 06-03-2012, 07:32 PM

Funny this post was mentioned.....as today I took the car for an extended drive. Weather conditions were good, mid 70's with not too high relative humidity, some humidity, but overall pretty decent air. On one occassion, while shifting into second and then stepping into the throttle at a progressive rate...the motor felt like it had a vacuum secondary carburetor on it, there was a slight pause and then the motor pulled out of it. That's the only way I can describe it. A slight pause, then the power came on in a gradual fashion. One time only....low speed 30-40 MPH...

tpower · 06-03-2012, 07:37 PM

http://www.camaro5.com/forums/showthread.php?t=228259 mine has gotten so bad from about 30mph to 45mph ind 2nd gear its going to my dealer tommorow

Blue Menace · 06-03-2012, 07:46 PM

I know first run models have their issues, but geez! The problems keep stacking up.

OldScoolCamaro · 06-03-2012, 07:48 PM

Quote:

Originally Posted by tpower

http://www.camaro5.com/forums/showthread.php?t=228259 mine has gotten so bad from about 30mph to 45mph ind 2nd gear its going to my dealer tommorow

...does your tranny hunt at all near shift points, assuming you have an automatic? Or is it just a throttle response issue....

tpower · 06-03-2012, 07:50 PM

when it goes into 2nd it bounces all over the place

06-03-2012, 11:38 AM	#1
Frankzl1 Drives: 2012 Ashen ZL1 Join Date: Nov 2011 Location: Miami Posts: 552	Engine hesitation Guys - have you experienced any engine hesitation while driving? Every time I drive between 30 - 40 miles or when RPM's are between 1,000 to 2,000 - I'll get engine hesitation. Thanks in advance for your help. P.S. I have already changed engine oil,spark plugs, cleaned MAF and added fuel additive Last edited by Frankzl1; 06-03-2012 at 11:50 AM.

06-03-2012, 01:31 PM	#7
hognutz Drives: 2013 ZL1 Join Date: Oct 2011 Location: tangent or Posts: 2,984	there is almost 0% chance the plugs or anthing to do with lubrications. on something this new you should never change the plugs just inspect them. once you learn how to read plugs you would imediatly know if there was an issue or not just by looking at them. bad fuel usually just caused it to run bad period. my .02 is take it to the dealership if it is repeatable. why waste your time and money with such a new car? on a car this new it could be an issue with the programing. if it is partial throttle it could be any number of feedback systems for the injection system. a bad knock sensor, TPS senor, etc could cause the car to behave eratically. does it go away if you just floor and and go into open loop and just rely on the spark fuel tables in the tune? __________________ shopping for 2017+1le or zl1 2009 CTS-V -sold 2015 Hellcat-sold 2013 ZL1 -sold 2007 Z06- sold 2014 Chrysler 300 2011 Duramax 8" lift, deleted tuned

06-03-2012, 07:32 PM	#10
OldScoolCamaro Drives: Camaro's, always have, always will. Join Date: Oct 2010 Location: Home of the brave Posts: 4,851	Funny this post was mentioned.....as today I took the car for an extended drive. Weather conditions were good, mid 70's with not too high relative humidity, some humidity, but overall pretty decent air. On one occassion, while shifting into second and then stepping into the throttle at a progressive rate...the motor felt like it had a vacuum secondary carburetor on it, there was a slight pause and then the motor pulled out of it. That's the only way I can describe it. A slight pause, then the power came on in a gradual fashion. One time only....low speed 30-40 MPH... __________________ In Scott We Trust...all others must show proof.

06-03-2012, 07:37 PM	#11
tpower DBLCHBY III Drives: 15 1LE Join Date: Jun 2011 Location: Team Canada Posts: 2,789	http://www.camaro5.com/forums/showthread.php?t=228259 mine has gotten so bad from about 30mph to 45mph ind 2nd gear its going to my dealer tommorow __________________

06-03-2012, 07:50 PM	#14
tpower DBLCHBY III Drives: 15 1LE Join Date: Jun 2011 Location: Team Canada Posts: 2,789	when it goes into 2nd it bounces all over the place __________________

06-03-2012, 11:59 AM	#2
1st Gen Forever ZL1 #140 Drives: Camaros: 68 SS, 10 2SS/RS, 12 ZL1 Join Date: Mar 2008 Location: Arizona Posts: 594	I'm surprised your ZL1 would already need new spark plugs and a fuel additive. Here's a thread I started on a similar issue with mine but little different and hard to reproduce. http://www.camaro5.com/forums/showthread.php?t=228001

06-03-2012, 12:08 PM	#3
Frankzl1 Drives: 2012 Ashen ZL1 Join Date: Nov 2011 Location: Miami Posts: 552	I changed the spark plugs just rule things out and I am not getting any codes

06-03-2012, 12:15 PM	#4
RoketRdr Drives: 2010 Duramax; 2012 CTS-V Coupe Join Date: Apr 2012 Location: Houston, Tx Posts: 387	What's the mileage and do you have a manual or auto? Give it a battery nap for 10 minutes so it dumps all the tables and starts fresh on the cals and see if that fixes it.

06-03-2012, 03:06 PM	#8
Frankzl1 Drives: 2012 Ashen ZL1 Join Date: Nov 2011 Location: Miami Posts: 552	It might be bad gas, because it happened after I filled up a 1 week ago, but I have refilled since then and that's why I put the additive-it didn't do anything. I am disconnecting the battery and I'll let you guys know

06-03-2012, 07:21 PM	#9
Frankzl1 Drives: 2012 Ashen ZL1 Join Date: Nov 2011 Location: Miami Posts: 552	I disconnected the battery, didn't take The issue away,but it got much better-I am taking to mechanic tomorrow and lets see what happens. Thanks again!!

06-03-2012, 07:46 PM	#12
Blue Menace Drives: 2013 WRX Sedan Join Date: Aug 2009 Location: Austin, TX Posts: 705	I know first run models have their issues, but geez! The problems keep stacking up.