Hot starting issues - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Mb6000 · 03-12-2015, 09:04 PM

Has anyone figured out why our cars don't start or start hard when hot. Car will start fine when cold. Tried searching and never found out what the issue really is. Anyone have the answer. Heard to replace the battery, starter, or crank sensor.

revived · 03-12-2015, 11:41 PM

explain... the worst I have encountered and isnt often is I shut the car off after a drive and immediattly turned it and the car took longer to fire up. (Starter spun a lot longer). Again doesn't happen that often to me so im just asking what your situation has been like?

Jsafe17 · 03-12-2015, 11:44 PM

Hmmmm.. not mine, sry not much help.. 2" header to close to starter or?

PalmerGA · 03-13-2015, 06:00 AM

Have not had any hard starting issues.

Mb6000 · 03-13-2015, 08:04 AM

After driving the car and go to start it again, the car won't start up always on the first try. It will just crank. The second time I try, it fires right up. I've read it could be the starter is heat soaked. If i let the car cool down a while, it will start fine. There is a bunch of posts about this, but never found the correct fix.

BubbaSS · 03-13-2015, 08:41 AM

Quote:

Originally Posted by Mb6000

After driving the car and go to start it again, the car won't start up always on the first try. It will just crank. The second time I try, it fires right up. I've read it could be the starter is heat soaked. If i let the car cool down a while, it will start fine. There is a bunch of posts about this, but never found the correct fix.

The AC Delco starter gets heat soaked with headers. I've replaced it and even added heat shield, but after a while it has the issue again. Might want to look into other brands if you replace. I definitely will.

Russell James · 03-13-2015, 08:50 AM

Quote:

Originally Posted by Mb6000

Has anyone figured out why our cars don't start or start hard when hot. Car will start fine when cold. Tried searching and never found out what the issue really is. Anyone have the answer. Heard to replace the battery, starter, or crank sensor.

If your modded like that... you need a modded starter.

Call Powermaster and talk to their tech dept. They have top notch stuff and will steer you to the right one.

You're also fighting the drop off from the really long battery cables. Makes the need for a really good battery and starter that much more.

I went through all kinds of different starters on my BBC drag car. When I finally went to a Powermaster Ultra... all problems stopped. Doesn't even need a heat shield. There are a few other top quality brands too.

If you have access to your tune also, make sure the cranking timing isn't too advanced.

hazy · 03-13-2015, 08:50 AM

yep. I get this problem. Struggles to start, then when it does fire up, throws the TC/ST lights, tach doesn't work, and get the 'Service Stabilitrac' warning.

I've looked everywhere, and decided that it's the starter getting too hot. I am considering having my headers ceramic coated, but in order to avoid the down time for that, I'm going to get either a new hood, or some hex vents to [hopefully] reduce engine bay temps.

If that doesn't help (and I'll know sometime this summer, bc it gets pretty warm here) I'll figure out the best starter for a replacement.

BubbaSS · 03-13-2015, 09:49 AM

Quote:

Originally Posted by Russell James

If your modded like that... you need a modded starter.

Call Powermaster and talk to their tech dept. They have top notch stuff and will steer you to the right one.

You're also fighting the drop off from the really long battery cables. Makes the need for a really good battery and starter that much more.

I went through all kinds of different starters on my BBC drag car. When I finally went to a Powermaster Ultra... all problems stopped. Doesn't even need a heat shield. There are a few other top quality brands too.

If you have access to your tune also, make sure the cranking timing isn't too advanced.

Great info! I'm gonna look those up now

Quote:

Originally Posted by hazy

yep. I get this problem. Struggles to start, then when it does fire up, throws the TC/ST lights, tach doesn't work, and get the 'Service Stabilitrac' warning.

I've looked everywhere, and decided that it's the starter getting too hot. I am considering having my headers ceramic coated, but in order to avoid the down time for that, I'm going to get either a new hood, or some hex vents to [hopefully] reduce engine bay temps.

If that doesn't help (and I'll know sometime this summer, bc it gets pretty warm here) I'll figure out the best starter for a replacement.

My headers are ceramic coated, but your issue is a bit different, because I don't receive the warnings

pyroguy · 03-13-2015, 10:09 AM

Subscribed!

Mine has shorty headers and is a L99, would the same issue be true for mine? When I'm running and the vehicle gets hot this happens. However, mine also idles rough after warning up especially in warm weather. Is this related?

Mb6000 · 03-13-2015, 10:20 AM

Just called powermaster and asked which starter for my car. He said the 9509xs. Found them on eBay for $206 and free shipping. Going to order one right now. The guy said the solenoid is encapsuled so there shouldn't be any heat soak issues. Will update after I install it and see if that takes care of the problem. Thanx Russel James.

spadz93 · 03-13-2015, 11:06 AM

subscribed...

MightymouseSS · 03-13-2015, 05:47 PM

Might wanna check your cam position sensor too. Mine was hard to start on occasion and found the cam sensor harness rubbing against the block and shorting out my sensor intermittently.

MS7 · 03-14-2015, 12:08 PM

i was facing same issue,,, fix it be new starter

starter or battery or injector leak

03-12-2015, 09:04 PM	#1
Mb6000 Drives: 2011 Camaro 2SS/RS LS3 Join Date: Apr 2013 Location: WI Posts: 125	Hot starting issues Has anyone figured out why our cars don't start or start hard when hot. Car will start fine when cold. Tried searching and never found out what the issue really is. Anyone have the answer. Heard to replace the battery, starter, or crank sensor. __________________ '11 Camaro 2SS/RS LS3 M6\| Black on Black\| BMR Strut Brace\| P&P Throttle Body\| Cold Air Inductions Black CAI\| 2" TSP LT Headers\| Cat-Back Exhaust\| Hurst Line Lock\| Night Fury Cam\| Brian Tooley Valvetrain\| Melling 10296\| C5R chain\| Comp Cam rocker kit\| 3.91 1LE Gear Kit\| MPD1 Z Force Hood\| BMR Lowering Springs\| 480hp/454tq Last edited by Mb6000; 03-13-2015 at 07:56 AM.

03-12-2015, 11:41 PM	#2
revived Vrrrm. Drives: 2011 2SS/RS LS3 Join Date: Jun 2013 Location: MA Posts: 1,495	explain... the worst I have encountered and isnt often is I shut the car off after a drive and immediattly turned it and the car took longer to fire up. (Starter spun a lot longer). Again doesn't happen that often to me so im just asking what your situation has been like? __________________

03-13-2015, 06:00 AM	#4
PalmerGA Drives: 2013 SIM 1SS/RS L99 Join Date: May 2012 Location: Southwest GA Posts: 8,755 View My Garage	Have not had any hard starting issues. __________________ 2013 1SS/RS Coupe L99, Stainless Power Works LT Headers, SCT X4 Custom Tune from RDP, CAI Inc. Air Intake w/ Apex Scoop, VMAX CNC Ported Throttle Body, Solo Axle-Back Exhaust w/ J-pipes, Apex Catch Can, Husky Splash Guards, Heritage Grille, 3D Carbon Rear Spoiler, Oracle Chrome Turn Signal Bulbs, GM Reverse Light Trim Billets, Gorilla Black Locking Lugs, Emblem Pros Retro SS Badges/Custom Retro SS Kickplates/Under-hood Bowtie, 35% window Tint, Nitto Motivo Tires (6-8-18)

03-13-2015, 08:04 AM	#5
Mb6000 Drives: 2011 Camaro 2SS/RS LS3 Join Date: Apr 2013 Location: WI Posts: 125	After driving the car and go to start it again, the car won't start up always on the first try. It will just crank. The second time I try, it fires right up. I've read it could be the starter is heat soaked. If i let the car cool down a while, it will start fine. There is a bunch of posts about this, but never found the correct fix. __________________ '11 Camaro 2SS/RS LS3 M6\| Black on Black\| BMR Strut Brace\| P&P Throttle Body\| Cold Air Inductions Black CAI\| 2" TSP LT Headers\| Cat-Back Exhaust\| Hurst Line Lock\| Night Fury Cam\| Brian Tooley Valvetrain\| Melling 10296\| C5R chain\| Comp Cam rocker kit\| 3.91 1LE Gear Kit\| MPD1 Z Force Hood\| BMR Lowering Springs\| 480hp/454tq

03-13-2015, 10:09 AM	#10
pyroguy Started#gottalovethatblue Drives: ABM #831 Join Date: Apr 2013 Location: TN Posts: 6,914 View My Garage	Subscribed! Mine has shorty headers and is a L99, would the same issue be true for mine? When I'm running and the vehicle gets hot this happens. However, mine also idles rough after warning up especially in warm weather. Is this related? __________________ '10 Camaro 2SS/RS \| Aqua Blue #831 of 3,903 \| Silver Stripes Check out my build thread

03-12-2015, 11:44 PM	#3
Jsafe17 Drives: 2010 2SS/RS 6spd LS3 Join Date: Jan 2015 Location: Oregon Posts: 581	Hmmmm.. not mine, sry not much help.. 2" header to close to starter or?

03-13-2015, 08:50 AM	#8
hazy Drives: 2011 2SS/RS Join Date: Feb 2014 Location: H-Town Posts: 1,037	yep. I get this problem. Struggles to start, then when it does fire up, throws the TC/ST lights, tach doesn't work, and get the 'Service Stabilitrac' warning. I've looked everywhere, and decided that it's the starter getting too hot. I am considering having my headers ceramic coated, but in order to avoid the down time for that, I'm going to get either a new hood, or some hex vents to [hopefully] reduce engine bay temps. If that doesn't help (and I'll know sometime this summer, bc it gets pretty warm here) I'll figure out the best starter for a replacement.

03-13-2015, 10:20 AM	#11
Mb6000 Drives: 2011 Camaro 2SS/RS LS3 Join Date: Apr 2013 Location: WI Posts: 125	Just called powermaster and asked which starter for my car. He said the 9509xs. Found them on eBay for $206 and free shipping. Going to order one right now. The guy said the solenoid is encapsuled so there shouldn't be any heat soak issues. Will update after I install it and see if that takes care of the problem. Thanx Russel James. __________________ '11 Camaro 2SS/RS LS3 M6\| Black on Black\| BMR Strut Brace\| P&P Throttle Body\| Cold Air Inductions Black CAI\| 2" TSP LT Headers\| Cat-Back Exhaust\| Hurst Line Lock\| Night Fury Cam\| Brian Tooley Valvetrain\| Melling 10296\| C5R chain\| Comp Cam rocker kit\| 3.91 1LE Gear Kit\| MPD1 Z Force Hood\| BMR Lowering Springs\| 480hp/454tq Last edited by Mb6000; 03-13-2015 at 10:40 AM.

03-13-2015, 11:06 AM	#12
spadz93 BUMBL Z Drives: 2015 ZL1 Join Date: Nov 2013 Location: Northern NJ Posts: 2,573 View My Garage	subscribed... __________________ Current: 2015 ZL1 M6, Rotofab Intake, LS3 throttle body, 2.55 Upper/9.17 Lower w/ Idler Relocation, DMS Reinforced Brick, ID1050X, 1 7/8" Headers, ProSpeed HX/Reservoir, DSX Aux Pump/Flex Fuel Sensor, E85, McLeod RXT, BMR 1" Drop, Tuned by Pat G Past: 2010 2SS, some bolt ons, 415rwhp/400rwtq

03-13-2015, 05:47 PM	#13
MightymouseSS Drives: 2011 LS3 Join Date: Jan 2012 Location: el paso tx Posts: 547	Might wanna check your cam position sensor too. Mine was hard to start on occasion and found the cam sensor harness rubbing against the block and shorting out my sensor intermittently. __________________ Vararam Stainless Works Headers Vmax TB SLP loudmouth 2 Nightfury Cam Mike Norris CC Tuned by Southwest Speed

03-14-2015, 12:08 PM	#14
MS7 Drives: 2011 camaro LS3 supercharger Join Date: Aug 2012 Location: JEDDAH Posts: 96	i was facing same issue,,, fix it be new starter starter or battery or injector leak __________________ SLP TVS 2300,LS9 cam,ZL1 fuel bump, ADM FPCM,850ID,LT headers,CAI intake K&N, X pipe with stock exhaust Eibach 1inch suspension,Mantic Clutch 700HP, 91fule .8psi METH AEM, no timing up 557 RWHP ZL1 black wheels,ZL1 front bumper, ground effects,