Hot start - slow crank - fixed! Updated 12/30/20 - Page 17

Skyman2112 · 08-08-2021, 09:04 PM

I already have an extra battery cable grounding the block to the chassis, but when i installed ceramic coated headers, i noticed sometimes if i have to stop and restart the car right away it barely starts, as in 9.58 volts according to my battery monitor. Should i get an extra heat shield?

2SS Capt · 08-08-2021, 10:13 PM

Quote:

Originally Posted by Skyman2112

I already have an extra battery cable grounding the block to the chassis, but when i installed ceramic coated headers, i noticed sometimes if i have to stop and restart the car right away it barely starts, as in 9.58 volts according to my battery monitor. Should i get an extra heat shield?

If you are still using your original battery it is time for a new battery.

SSDan · 08-09-2021, 10:04 AM

Quote:

Originally Posted by 2SS Capt

If you are still using your original battery it is time for a new battery.

Agreed - I'd start with a battery check. The engine to body ground helps to overcome the the heat soaked starter drag when there is a healthy battery. A weak battery can't overcome the heat soak even with a good ground.

Good luck and let us know how it turns out.

Blobby · 08-09-2021, 12:10 PM

Are there traditional flooded batteries have a vent hose like AGM? As far as I can tell, AGM batts don’t have much of an advantage besides the safety aspect. The second perk I read they have is lower maintenance, but my flooded batts have always been, quite literally, zero maintenance.

oOKhanhOo · 08-25-2021, 07:21 PM

Just ordered from BATTERYCABLESUSA two 24" cables, I went with the 2/0AWG wire. What is the bolt size/thread?

Quote:

Originally Posted by 2SS Capt

Added an additional ground cable to help with the slow crank/hot engine issue...

Bought the cable from BatteryCablesUSA, 21" 0 Gauge (1/0), 3/8" connectors (M10): $12.81 + $3.97 shipping = $16.78 + $3.18 at Home Depot for a new bolt, nuts and washers... Total: $19.96 installed, took about 10 minutes...

2SS Capt · 08-25-2021, 07:29 PM

Quote:

Originally Posted by oOKhanhOo

What is the bolt size/thread?

See this post: https://www.camaro6.com/forums/showp...&postcount=124

oOKhanhOo · 08-31-2021, 10:09 PM

Update: I wired the wired it to the negative post in the engine bay and onto the engine. It did NOT fix my problem (slow crank/no crank/single click from starter solenoid I believe) :(

SSDan · 09-01-2021, 01:22 PM

Quote:

Originally Posted by oOKhanhOo

Update: I wired the wired it to the negative post in the engine bay and onto the engine. It did NOT fix my problem (slow crank/no crank/single click from starter solenoid I believe) :(

That's too bad! You may have more going on if you have a no crank situation and hear a click from the solenoid. I assume you have tested the battery/charging system and have good voltage.

Is the slow crank on a cold or a hot engine? Could you post a picture of where you connected the new ground cable if you used a different location than in this thread?

Most of us with the slow crank/hot engine have had 2016 SS models. I haven't read about any 2018 models with the issue until your post.

Good luck and keep us posted.

oOKhanhOo · 09-05-2021, 02:34 PM

Quote:

Originally Posted by SSDan

That's too bad! You may have more going on if you have a no crank situation and hear a click from the solenoid. I assume you have tested the battery/charging system and have good voltage.

Is the slow crank on a cold or a hot engine? Could you post a picture of where you connected the new ground cable if you used a different location than in this thread?

Most of us with the slow crank/hot engine have had 2016 SS models. I haven't read about any 2018 models with the issue until your post.

Good luck and keep us posted.

No crank, single click I believe from the starter solenoid, when cold happened a couple days. That was the first time ever happening on a cold start.

Slow/no crank(single click) is happening on warm/hot start. I connected the new ground at the same location as the pic a few posts above. There are days where it starts up with no problem. But these symptoms has been more frequent as time goes by.

I need to load test the battery and connect the extra ground wire I bought in the trunk.

2SS Capt · 09-05-2021, 03:10 PM

Quote:

Originally Posted by oOKhanhOo

No crank, single click I believe from the starter solenoid, when cold happened a couple days. That was the first time ever happening on a cold start.

Slow/no crank(single click) is happening on warm/hot start. I connected the new ground at the same location as the pic a few posts above. There are days where it starts up with no problem. But these symptoms has been more frequent as time goes by.

I need to load test the battery and connect the extra ground wire I bought in the trunk.

Sounds like your battery is shot...

Blobby · 09-05-2021, 03:24 PM

Quote:

Originally Posted by 2SS Capt

Sounds like your battery is shot...

Or wiggle the batt connections. There’s more than just a + & - back there to loosen or get cruddy.

oOKhanhOo · 09-05-2021, 03:25 PM

Quote:

Originally Posted by 2SS Capt

Sounds like your battery is shot...

I hope that's the case! Much cheaper than starter replacement or any other causes.

oOKhanhOo · 09-08-2021, 03:34 PM

UPDATE: I went to Autozone and had them test my battery while it’s still in the car. It turns out to be a bad battery according to their device.

SSDan · 09-08-2021, 04:56 PM

Quote:

Originally Posted by oOKhanhOo

UPDATE: I went to Autozone and had them test my battery while it’s still in the car. It turns out to be a bad battery according to their device.

Here is hoping that new battery added to the ground cable(s) you've added puts your car right and your starting woes are behind you.

08-08-2021, 09:04 PM	#225
Skyman2112 Drives: 2016 2SS blue velvet w/blk stripes Join Date: Sep 2017 Location: Tulsa, OK Posts: 43 View My Garage	I already have an extra battery cable grounding the block to the chassis, but when i installed ceramic coated headers, i noticed sometimes if i have to stop and restart the car right away it barely starts, as in 9.58 volts according to my battery monitor. Should i get an extra heat shield? __________________ Current mods. Rotofab CAI, Speed Engineering Long Tube Headers and plug wires w custom tune. Shock tower brace, ground effects, OEM brake air ducts and splash gaurd delete, 275/315 tires on 10 and 11 inch MRR wheels.

08-09-2021, 12:10 PM	#228
Blobby Drives: Former Owner '16 Camaro 2LT V6 conv Join Date: May 2021 Location: Florida Posts: 97	Are there traditional flooded batteries have a vent hose like AGM? As far as I can tell, AGM batts don’t have much of an advantage besides the safety aspect. The second perk I read they have is lower maintenance, but my flooded batts have always been, quite literally, zero maintenance.

08-31-2021, 10:09 PM	#231
oOKhanhOo Drives: 2018 SS 1LE Join Date: Sep 2018 Location: Ohio Posts: 143	Update: I wired the wired it to the negative post in the engine bay and onto the engine. It did NOT fix my problem (slow crank/no crank/single click from starter solenoid I believe) :(

09-08-2021, 03:34 PM	#237
oOKhanhOo Drives: 2018 SS 1LE Join Date: Sep 2018 Location: Ohio Posts: 143	UPDATE: I went to Autozone and had them test my battery while it’s still in the car. It turns out to be a bad battery according to their device.

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