Tach delay for a few seconds after starting the car. - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

mikeman · 05-19-2020, 10:28 AM

I noticed the other day, when I started my car after a warm restart, the tach delayed for a few seconds. The battery is orìginal, but I always keep it on a trickle charger when I'm not driving it. Car is garaged kept so I assume the grounds are good.

Any ideas?

mikeman · 05-20-2020, 01:33 AM

ttt

Greenhornet2 · 05-20-2020, 06:02 AM

I'd start with a battery

mikeman · 05-21-2020, 12:08 PM

Quote:

Originally Posted by Greenhornet2

I'd start with a battery

So, an old battery would cause this? Thanks.

Greenhornet2 · 05-21-2020, 01:57 PM

Old batteries in these cars cause all sorts of strange electrical symptoms.

CamaroBarb · 05-21-2020, 02:38 PM

I'll look when I go today, I think mine does the same thing.

mikeman · 05-21-2020, 04:55 PM

Quote:

Originally Posted by CamaroBarb

I'll look when I go today, I think mine does the same thing.

Okay, thanks. Funny thing is, I don't remember it doing that before, but I don't usually look straight at the tach when I'm starting the car like I did that time.

Greenhornet2 · 05-21-2020, 05:06 PM

Is everything else working fine and does it operate normally afterwards? I thought you had some other issues as well but i think i mixed up posts in my head.

mikeman · 05-21-2020, 05:12 PM

Quote:

Originally Posted by Greenhornet2

Is everything else working fine and does it operate normally afterwards? I thought you had some other issues as well but i think i mixed up posts in my head.

Yes, everything else works fine. The tach works normally and no other issues. It just freaked me out because I never actually noticed it before. Stays on the battery tender when parked. Original Delco battery.

Greenhornet2 · 05-21-2020, 08:21 PM

I wouldn't worry about it if that's the only thing you've noticed, could be normal and you just never noticed. If other strange stuff starts happening look at the battery possibility

CamaroBarb · 05-21-2020, 09:25 PM

Well I tried it a few times, there is a delay but its not much. If you hadn't mentioned it I wouldn't have noticed.

InFiD3ViL · 05-21-2020, 09:57 PM

I thought the tach, speedo, and 4 packs did a full test sweep before they started? Or do you mean after that?

CamaroBarb · 05-21-2020, 10:10 PM

The speedo and tach don't, as the engine starts the gauges on the console sweep.

InFiD3ViL · 05-21-2020, 10:17 PM

Quote:

Originally Posted by CamaroBarb

The speedo and tach don't, as the engine starts the gauges on the console sweep.

Wow...I am always missing the details lol.

05-19-2020, 10:28 AM	#1
mikeman Banned Drives: 2015 Camaro Join Date: Aug 2018 Location: My Garage Posts: 1,125	Tach delay for a few seconds after starting the car. I noticed the other day, when I started my car after a warm restart, the tach delayed for a few seconds. The battery is orìginal, but I always keep it on a trickle charger when I'm not driving it. Car is garaged kept so I assume the grounds are good. Any ideas?

05-20-2020, 06:02 AM	#3
Greenhornet2 Drives: 2011 Camaro 2SS LS3 Whipple Join Date: May 2019 Location: Connecticut Posts: 1,925	I'd start with a battery __________________ Whipple 2.9 CAI ID1050x injectors ZL1 Pump JRE FPCM JMS Voltage booster JRE Rough Idle blower cam BTR .660 springs CHE trunnion kit 1 7/8 Speed Engineering Borla Atak JRE scoop 1.5" lowering springs BMR trailing arms and toe links Cradle inserts 704WHP 603WTQ 93 octane

05-21-2020, 01:57 PM	#5
Greenhornet2 Drives: 2011 Camaro 2SS LS3 Whipple Join Date: May 2019 Location: Connecticut Posts: 1,925	Old batteries in these cars cause all sorts of strange electrical symptoms. __________________ Whipple 2.9 CAI ID1050x injectors ZL1 Pump JRE FPCM JMS Voltage booster JRE Rough Idle blower cam BTR .660 springs CHE trunnion kit 1 7/8 Speed Engineering Borla Atak JRE scoop 1.5" lowering springs BMR trailing arms and toe links Cradle inserts 704WHP 603WTQ 93 octane

05-21-2020, 05:06 PM	#8
Greenhornet2 Drives: 2011 Camaro 2SS LS3 Whipple Join Date: May 2019 Location: Connecticut Posts: 1,925	Is everything else working fine and does it operate normally afterwards? I thought you had some other issues as well but i think i mixed up posts in my head. __________________ Whipple 2.9 CAI ID1050x injectors ZL1 Pump JRE FPCM JMS Voltage booster JRE Rough Idle blower cam BTR .660 springs CHE trunnion kit 1 7/8 Speed Engineering Borla Atak JRE scoop 1.5" lowering springs BMR trailing arms and toe links Cradle inserts 704WHP 603WTQ 93 octane

05-21-2020, 08:21 PM	#10
Greenhornet2 Drives: 2011 Camaro 2SS LS3 Whipple Join Date: May 2019 Location: Connecticut Posts: 1,925	I wouldn't worry about it if that's the only thing you've noticed, could be normal and you just never noticed. If other strange stuff starts happening look at the battery possibility __________________ Whipple 2.9 CAI ID1050x injectors ZL1 Pump JRE FPCM JMS Voltage booster JRE Rough Idle blower cam BTR .660 springs CHE trunnion kit 1 7/8 Speed Engineering Borla Atak JRE scoop 1.5" lowering springs BMR trailing arms and toe links Cradle inserts 704WHP 603WTQ 93 octane

05-20-2020, 01:33 AM	#2
mikeman Banned Drives: 2015 Camaro Join Date: Aug 2018 Location: My Garage Posts: 1,125	ttt

05-21-2020, 02:38 PM	#6
CamaroBarb Banned Drives: cheby Camaro Join Date: Aug 2019 Location: usa Posts: 575	I'll look when I go today, I think mine does the same thing.

05-21-2020, 09:25 PM	#11
CamaroBarb Banned Drives: cheby Camaro Join Date: Aug 2019 Location: usa Posts: 575	Well I tried it a few times, there is a delay but its not much. If you hadn't mentioned it I wouldn't have noticed.

05-21-2020, 09:57 PM	#12
InFiD3ViL Drives: 2010 CGM 2SS/RS LS3 Swapped A6 Join Date: Sep 2016 Location: Spring Hill, FL Posts: 4,575	I thought the tach, speedo, and 4 packs did a full test sweep before they started? Or do you mean after that? __________________ 2010 CGM Camaro 2SS LS3 Swapped A6 - GPI LS3 SS1 .647/.638, (224/237, 112 +4, 7º overlap) on CamMotion 8620 core, BTR Platinum .660" Dual Spring kit w/titanium retainers, CHE bronze trunnion upgrade, stock heads milled @ .015, Melling HV 10296 oil pump, TSP 1-7/8" long tube headers (W/Catless Off-road Pipes), Corsa Xtreme 3" Catback, GPI Ported/Rod Mod Intake, Stage 2 Ported Throttle Body, Vararam OTR CAI, Mike Norris Gen 2 catch can + GM 1LE clean side separator, 160º thermostat - Megan Racing adjustable coilovers (lowered 1.75"), MRR M017 10/11" wheels-Tuned by Ryan @ GPI

05-21-2020, 10:10 PM	#13
CamaroBarb Banned Drives: cheby Camaro Join Date: Aug 2019 Location: usa Posts: 575	The speedo and tach don't, as the engine starts the gauges on the console sweep.