Starter lags when hot

SteveV · 06-24-2020, 12:36 PM

If this has been covered, sorry, I did a search and nothing came up.

Anyway, over the last couple of days, I have noticed that my ZL1 starts right up when cold. But, after driving for a few hours and the outside temp is over 90 F, the starter seems to lag, almost like the battery is weak. But, a test shows it fine

And, when the engine is cold, the starter sounds fine.

Anyone else notice this?

VinnAY · 06-24-2020, 01:02 PM

Starters at least used to be susceptible to heat especially in hot rod type applications and especially where headers are involved but I'd have to say it's much less common in modern cars and isn't too unusual.

Revalot · 06-24-2020, 01:09 PM

This sounds crazy but usually that's a sign of a higher compression motor(Which should not be with a factory motor), but I wonder about your timing which should not be off.
I hope it's a small issue, maybe a weak starter, get it hot and take it to the dealer and let them here it.

SteveV · 06-24-2020, 01:49 PM

Motor is bone stock

The only things I have added to this car is a dry Green filter in the stock air box and an 8 ball shifter handle.

No headers, still has the full factory exhaust.

TheRealJA105 · 06-24-2020, 02:06 PM

Very common on 2016s from what i know. The starters heat soak, but i thought they added additional heat shielding from 2017 on. Mine almost didn't start at all 2 weeks ago after driving to the gas station directly from a 93 degree track session.

LT4Greg · 06-24-2020, 05:42 PM

Yes SteveV my ZL1 is like that too and my 2016 2SS that I had was real bad about doing it too. Actually the SS was worse than the ZL1 especially when it was real hot outside.

AZ_1LE · 06-25-2020, 01:13 AM

No issues with my 2017 here in Phoenix. It was 110 today.

LT4Greg · 06-25-2020, 07:18 AM

My ZL1 doesn’t do it all the time just intermittently.

LJS-ZLE · 06-25-2020, 09:16 AM

My 2019 ZLE has weak starts following a track session and I just attribute it to heat soak. I had a 2017 Cadillac CTS-V and that car sometimes would not start after a 25 minute track session and would need to sit for a little while before it would start up again. So at least the ZLE is an improvement.

Snowwolfe · 06-25-2020, 09:31 AM

My C6 was prone to heat soak on really hot days after the A&A SC was installed on it. I got into the habit of popping open the hood when ever I parked the car. That little opening was enough to get rid of the heat soak.

Hell Raiser · 06-25-2020, 02:28 PM

I would say a bad starter or negative battery cable is not grounded good, The hotter the starter the more resistance so a bad ground could cause this. When they did your oil pump they could of not done it right when they connected the cables.

soloknight6 · 06-25-2020, 05:49 PM

My SS had the slow start issue bad. Replaced battery a year ago, never had the issue since. I firmly believe the fault is in the crappy OEM battery.

EDFHOBBIES · 06-28-2020, 09:17 AM

Wifes car developed it I'd ck the cables on the battery they tend to loosen some how. Fixed our problem.. my zl1 did same but I got stability light and car shut off out of the blue. Grab hold of the terminals if you can twist the terminals at all it's to loose.

tmak90 · 05-26-2021, 09:30 PM

I've had this same issue even with cold starts to where it takes 2-3 times for the car to finally turn over when remote starting.

The most common occurrence I've noticed this happening is when I go to pump gas and try to start. It takes 2-3 times of me pushing to start to get it to finally start the engine.
I've taken my car to the dealership they said it was due to a bad battery so then replaced it. Couple of weeks later the same issue popped back up and I'll be taking it back to the dealership again tomorrow..

I've read somewhere on this forum that there was a possible fix by adding a new ground cable that connects from the engine to the frame. Has anyone tried this possible solution?

06-24-2020, 12:36 PM	#1
SteveV Drives: 2018 ZL1 Camaro 6M Red Hot Join Date: Aug 2013 Location: Cary, NC Posts: 1,137 View My Garage	Starter lags when hot If this has been covered, sorry, I did a search and nothing came up. Anyway, over the last couple of days, I have noticed that my ZL1 starts right up when cold. But, after driving for a few hours and the outside temp is over 90 F, the starter seems to lag, almost like the battery is weak. But, a test shows it fine And, when the engine is cold, the starter sounds fine. Anyone else notice this? __________________ People are a lot like slinky's: not very helpful most of the time, but they bring a smile to your face when pushed down the stairs...

06-24-2020, 01:49 PM	#4
SteveV Drives: 2018 ZL1 Camaro 6M Red Hot Join Date: Aug 2013 Location: Cary, NC Posts: 1,137 View My Garage	Motor is bone stock The only things I have added to this car is a dry Green filter in the stock air box and an 8 ball shifter handle. No headers, still has the full factory exhaust. __________________ People are a lot like slinky's: not very helpful most of the time, but they bring a smile to your face when pushed down the stairs...

06-24-2020, 05:42 PM	#6
LT4Greg Drives: 2017 Camaro ZL1 Coupe Join Date: May 2016 Location: Georgia Posts: 5,813	Yes SteveV my ZL1 is like that too and my 2016 2SS that I had was real bad about doing it too. Actually the SS was worse than the ZL1 especially when it was real hot outside. __________________ ZL1 Coupe, PDR, Exposed carbon fiber hood insert, My Link with Nav, M6 6 speed and Silver Ice Metallic. Mods done: ceramic window tint, GM Accessories Camaro floor mats and Roto-Fab CAI.

06-25-2020, 01:13 AM	#7
AZ_1LE Drives: 2019 ZL1 1LE Join Date: Feb 2017 Location: Gilbert, AZ Posts: 648	No issues with my 2017 here in Phoenix. It was 110 today. __________________ Old: 2017 SS 1LE Old: 2017 ZL1 Current: 2019 ZL1 1LE

06-25-2020, 07:18 AM	#8
LT4Greg Drives: 2017 Camaro ZL1 Coupe Join Date: May 2016 Location: Georgia Posts: 5,813	My ZL1 doesn’t do it all the time just intermittently. __________________ ZL1 Coupe, PDR, Exposed carbon fiber hood insert, My Link with Nav, M6 6 speed and Silver Ice Metallic. Mods done: ceramic window tint, GM Accessories Camaro floor mats and Roto-Fab CAI.

06-24-2020, 01:02 PM	#2
VinnAY Account Suspended Drives: 18 1SS/1LE Join Date: Jun 2018 Location: Missouri Posts: 939	Starters at least used to be susceptible to heat especially in hot rod type applications and especially where headers are involved but I'd have to say it's much less common in modern cars and isn't too unusual.

06-24-2020, 01:09 PM	#3
Revalot Drives: ZL1/1LE parts added Join Date: May 2018 Location: Somewhere around Texas pines tress and smooth asphalt Posts: 609	This sounds crazy but usually that's a sign of a higher compression motor(Which should not be with a factory motor), but I wonder about your timing which should not be off. I hope it's a small issue, maybe a weak starter, get it hot and take it to the dealer and let them here it.

06-24-2020, 02:06 PM	#5
TheRealJA105 Drives: 2013 C6Z06 Join Date: Nov 2016 Location: PA Posts: 1,577	Very common on 2016s from what i know. The starters heat soak, but i thought they added additional heat shielding from 2017 on. Mine almost didn't start at all 2 weeks ago after driving to the gas station directly from a 93 degree track session.

06-25-2020, 09:16 AM	#9
LJS-ZLE Drives: 2019 Camaro ZL1 1LE Join Date: Apr 2019 Location: Needham, MA Posts: 35	My 2019 ZLE has weak starts following a track session and I just attribute it to heat soak. I had a 2017 Cadillac CTS-V and that car sometimes would not start after a 25 minute track session and would need to sit for a little while before it would start up again. So at least the ZLE is an improvement.

06-25-2020, 09:31 AM	#10
Snowwolfe Drives: CTV5 V Blackwing on order Join Date: Feb 2020 Location: East TN Posts: 431	My C6 was prone to heat soak on really hot days after the A&A SC was installed on it. I got into the habit of popping open the hood when ever I parked the car. That little opening was enough to get rid of the heat soak. __________________ 2022 CT5 V Blackwing with A10 2021 GMC Denali pickup with 6.2 and A10 2017 Ford Expedition

06-25-2020, 02:28 PM	#11
Hell Raiser To fast is not enough Drives: 2019 ZL1 Camaro & 2020 CT5-V Turbo Join Date: May 2019 Location: NC Posts: 85	I would say a bad starter or negative battery cable is not grounded good, The hotter the starter the more resistance so a bad ground could cause this. When they did your oil pump they could of not done it right when they connected the cables.

06-25-2020, 05:49 PM	#12
soloknight6 SoCal HT5! SD Drives: 2016 red hot 2ss M6 Join Date: Nov 2011 Location: San Diego CA, Posts: 1,929	My SS had the slow start issue bad. Replaced battery a year ago, never had the issue since. I firmly believe the fault is in the crappy OEM battery. __________________ http://www.camaro5.com/forums/showth...37#post5437037 By my deeds, I honor him. V8!!!

06-28-2020, 09:17 AM	#13
EDFHOBBIES Dyno Show Queen LOL Drives: 16 SS & 17 ZL1 Both Yellow Join Date: Jan 2014 Location: Houston Posts: 4,345 View My Garage	Wifes car developed it I'd ck the cables on the battery they tend to loosen some how. Fixed our problem.. my zl1 did same but I got stability light and car shut off out of the blue. Grab hold of the terminals if you can twist the terminals at all it's to loose. __________________ Kong Ported 2650, Crawford Racing Port Injection, Weapon X 112mm Adapter, NW112mm TB, Livernois Ported LT4 Heads, Lingenfelter GT32 stealth cam, Haltech Elite, and Carbon by Trufiber

05-26-2021, 09:30 PM	#14
tmak90 Drives: Camaro ZL1 1LE Join Date: Apr 2021 Location: Fort Worth, TX Posts: 10	I've had this same issue even with cold starts to where it takes 2-3 times for the car to finally turn over when remote starting. The most common occurrence I've noticed this happening is when I go to pump gas and try to start. It takes 2-3 times of me pushing to start to get it to finally start the engine. I've taken my car to the dealership they said it was due to a bad battery so then replaced it. Couple of weeks later the same issue popped back up and I'll be taking it back to the dealership again tomorrow.. I've read somewhere on this forum that there was a possible fix by adding a new ground cable that connects from the engine to the frame. Has anyone tried this possible solution?

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