2010 camaro ss wont start - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

BlakSS · 10-27-2021, 10:27 AM

Hi all, pretty new here, I have a 2010 ss manual. I dont daily the car, probably drive it every two weeks. It has about 66k miles on it.
It worked fine until recently, it wont start until i keep pumping the gas and it would turn over for like 30 seconds, i would hear it attempt to start then die. I would have to do this process for about 2-3 times then it finally starts. Once its started it runs and doesnt die on me until I turn it off and if I try to start it right after, same process, even when fully warmed up. Im not getting any check lights. I thought the pump died, but if it did, wont it not start at all?
Any pointers as to where I should start checking?
Changed, plugs and wires last year.

Thanks for the help!

Bigdumogre · 10-27-2021, 10:50 AM

Battery or ground cable problems. Search the forums about hard starts , battery and the starter ground.

xstuntman · 10-27-2021, 12:04 PM

I'm thinking air or fuel issues on this one.
I would crank it when cold until just before you think it would start and pull a plug to see if its soaked with fuel or dry.

You have a clean air filter in it?

wasthatacop? · 10-27-2021, 07:10 PM

Dirty fuel injectors? I cleaned mine a few months ago and they were pretty bad. Lots of dissolved gunk came out.

acutron42 · 10-27-2021, 07:13 PM

Old fuel possibly?

ADVMax · 10-28-2021, 04:17 PM

NOTE: "pumping" the throttle on a drive by wire fuel injected car just wears out the throttle pedal switch.

If you've updated to a high rise intake and a couple of Holley carbs then never mind the above sentence.

1JEWLDSSRS · 10-28-2021, 07:33 PM

Quote:

Originally Posted by ADVMax

NOTE: "pumping" the throttle on a drive by wire fuel injected car just wears out the throttle pedal switch.

If you've updated to a high rise intake and a couple of Holley carbs then never mind the above sentence.

lol, I told him that in his OTHER thread he has going....

First off on these injected engines, I was told that pumping the gas to get it to start doesn't do anything like the old carbed engines did that had accelerator pumps on them. You get fuel fed by the pump when you turn the key on, then you have fuel pressure to the injectors. I would check your fuel pressure and see what's there, possibility your pump is getting ready to take a crap, or you have some clogged injectors that need attention. Good luck sir..

InFiD3ViL · 10-28-2021, 08:07 PM

Quote:

Originally Posted by 1JEWLDSSRS

lol, I told him that in his OTHER thread he has going....

First off on these injected engines, I was told that pumping the gas to get it to start doesn't do anything like the old carbed engines did that had accelerator pumps on them. You get fuel fed by the pump when you turn the key on, then you have fuel pressure to the injectors. I would check your fuel pressure and see what's there, possibility your pump is getting ready to take a crap, or you have some clogged injectors that need attention. Good luck sir..

Exactly right. Pumping BEFORE starting will give the injectors no more fuel than not pushing the pedal at all - injectors will not open until the engine is cranking/running. The ECU sends a specific amount of fuel through the injectors (Well, opens the injectors a specific timeframe) based on a 'startup' condition, metering exactly the fuel needed to complete startup based on the tune. Where you have your foot on the pedal has no effect on this, with the exception of WOT pedal on start, which is a 'Flood Clear' condition - the injectors will not pass any fuel at all.

morepowerjoe · 10-29-2021, 12:18 AM

Quote:

Originally Posted by 1JEWLDSSRS

lol, I told him that in his OTHER thread he has going....

First off on these injected engines, I was told that pumping the gas to get it to start doesn't do anything like the old carbed engines did that had accelerator pumps on them. You get fuel fed by the pump when you turn the key on, then you have fuel pressure to the injectors. I would check your fuel pressure and see what's there, possibility your pump is getting ready to take a crap, or you have some clogged injectors that need attention. Good luck sir..

+1

Get a fuel pressure gauge and start there.

1JEWLDSSRS · 10-29-2021, 09:57 AM

Quote:

Originally Posted by InFiD3ViL

Exactly right. Pumping BEFORE starting will give the injectors no more fuel than not pushing the pedal at all - injectors will not open until the engine is cranking/running. The ECU sends a specific amount of fuel through the injectors (Well, opens the injectors a specific timeframe) based on a 'startup' condition, metering exactly the fuel needed to complete startup based on the tune. Where you have your foot on the pedal has no effect on this, with the exception of WOT pedal on start, which is a 'Flood Clear' condition - the injectors will not pass any fuel at all.

Yes sir, well said!! Great info here, as always. I learned all this from my Chevy mechanic friend...

10-27-2021, 10:27 AM	#1
BlakSS Drives: Chevy Camaro SS Join Date: Jan 2021 Location: St louis Posts: 3	2010 camaro ss wont start Hi all, pretty new here, I have a 2010 ss manual. I dont daily the car, probably drive it every two weeks. It has about 66k miles on it. It worked fine until recently, it wont start until i keep pumping the gas and it would turn over for like 30 seconds, i would hear it attempt to start then die. I would have to do this process for about 2-3 times then it finally starts. Once its started it runs and doesnt die on me until I turn it off and if I try to start it right after, same process, even when fully warmed up. Im not getting any check lights. I thought the pump died, but if it did, wont it not start at all? Any pointers as to where I should start checking? Changed, plugs and wires last year. Thanks for the help!

10-27-2021, 10:50 AM	#2
Bigdumogre Drives: 2012 Camaro SS Join Date: Dec 2019 Location: New York Posts: 1,452	Battery or ground cable problems. Search the forums about hard starts , battery and the starter ground. __________________ 2012 Camaro 2SS/RS - CSP Custom Cam 232/240 .615/.615 113 +3, Texas speed CNC heads, FTI billet triple disc converter, K&N cai, Katech ported TB, GPI Ported/rod modded manifold, Texas speed 1 7/8 headers, HFC, Flowmaster 2 chambers with x pipe, Mishimoto CC, MSD wires, Roto fab washer relocation, tru cool 40k trans cooler, apex scoop, Pedders extreme coil overs and much more!!

10-27-2021, 12:04 PM	#3
xstuntman Drives: 2012 Victory Red LFX Join Date: Dec 2012 Location: west central Texas Posts: 1,351	I'm thinking air or fuel issues on this one. I would crank it when cold until just before you think it would start and pull a plug to see if its soaked with fuel or dry. You have a clean air filter in it? __________________ '18 SS wheels, colored matched Heritage grille, actual driving lights, ZL1 strut tower brace, GM Performance billet aluminum fuel door, victory red rotors and calipers, 1/4 window American flags, splash guards, AEM dry panel air filter, Hot Wheels steering wheel and seat covers, Hot Wheels exterior emblems.

10-27-2021, 07:10 PM	#4
wasthatacop? Drives: 2010 2SS Join Date: Apr 2017 Location: Los Angeles Posts: 360 View My Garage	Dirty fuel injectors? I cleaned mine a few months ago and they were pretty bad. Lots of dissolved gunk came out. __________________ 2010 2SS living in Los Angeles replaced engine @ 93,000 miles w/ crate engine, camshaft by Comp Cams installed by me, replaced valve train parts, 1.4" BMR lowering springs ZL1 factory rims misc: drilled and slotted rotors, fresh air brake cooling system, new speakers, installed reverse camera, muffler delete

10-27-2021, 07:13 PM	#5
acutron42 Drives: 2013 Camaro 2SS AGM Join Date: Apr 2020 Location: WNY Posts: 935	Old fuel possibly?

10-28-2021, 04:17 PM	#6
ADVMax Sporting Foole Drives: 2010 Camaro SS Join Date: Sep 2019 Location: Alabama Posts: 500	NOTE: "pumping" the throttle on a drive by wire fuel injected car just wears out the throttle pedal switch. If you've updated to a high rise intake and a couple of Holley carbs then never mind the above sentence.