Car idles then shuts off a few seconds later
Car idles then shuts off a few seconds later
My 2000 Bonneville starts and runs for a few seconds, then idles rough and dies out soon after. I restart it and it does the same thing until I hold in the gas for a while and keep the rpm's up around 2000. What could be causing this?
- J Wikoff
- Administrator

- Posts: 17080
- Joined: Mon May 19, 2008 7:01 pm
- Year and Trim: 1992 SSE
2009 G8 GT - Location: Central Illinois
- Contact:
Re: Car idles then shuts off a few seconds later
Vacuum leak, gummed TB, weak IAC, all come to mind.

WHITE WHINE - 1992 SSE Supercharged 236.26 ci (.040 Over) 15.090 at 90.2 MPH on old engine w/ slipping trans & melted O2 sensor - Gen 3 M62 and matching TB, Gen 2 Pully, Zillamotorsports Ported LIM, YT 1.72 Roller Rockers, SII FPR & Injectors, Hypertech Thermomaster chip w/ 160 Thermo, TransGo Shift Kit, Infinity/Pioneer Speakers & a 10" Alpine Type R Sub, all the watts, 140 amp Alternator, Ricepipe CAI w/ heatshield, Pilot Angel Eye Foglights, Clear Corners, '02 17" Chrome Bent 5's, Magnaflow F-Body Muffler and Hi-flo Cat, Ceramic Coated Ported Exhaust Manifolds, Fan Override, Monroe Reflex struts, red calipers
2009 G8 GT - Sport Red Metallic, loaded, SOLO Axlebacks, Rotofab Intake, Tuned, autodim mirror, removed intake manifold cover, HSV GTS triple gauge pod, two tone red-hot shifter and HSV SuperSport steering wheel, GXP rear sway bar and diffuser, 3.45 diff and various Camaro suspension bits, LED Taillights
-
94SilverSSEi
- Certified Bonneville Nut

- Posts: 3351
- Joined: Thu May 22, 2008 11:14 pm
- Year and Trim: 97.2 40th SLE
68 w/400
94 SSEi - Location: Racine, Wisconsin
Re: Car idles then shuts off a few seconds later
Do you have any warning lights? Check engine?
Clay
1997.2 40th SLE-138k
1968 Bonneville 400ci w/TH-400-40k
1999 GMC Suburban SLT-191k
2005 Escalade 253k-GINA
1997.2 40th SLE-138k
1968 Bonneville 400ci w/TH-400-40k
1999 GMC Suburban SLT-191k
2005 Escalade 253k-GINA
nos4blood70 wrote:Literally, cars are drugs.
- nos4blood70
- Certified Bonneville Nut

- Posts: 9522
- Joined: Mon May 10, 2010 6:11 pm
- Year and Trim: 2003 SLE
- Location: Chicago, IL
Re: Car idles then shuts off a few seconds later
I would give the throttle body and all the sensors a good cleaning.
Re: Car idles then shuts off a few seconds later
Yes, the check engine light is on. I had the codes checked, and the only thing that came up was the air flow sensor, my air filter was dirty, I replaced it though.
-
mrwildroot
- SSEi Member

- Posts: 173
- Joined: Tue Dec 06, 2011 8:46 pm
- Year and Trim: 2000 Bonneville SE
- Location: North Carolina
Re: Car idles then shuts off a few seconds later
Quick test:
Unplug the MAF sensor, then try starting/running the engine...
If it runs properly, clean or replace MAF sensor. Don't use Bosch tho, OEM, new or used.
Contact 'Harofreak00' for a good used one.
Unplug the MAF sensor, then try starting/running the engine...
If it runs properly, clean or replace MAF sensor. Don't use Bosch tho, OEM, new or used.
Contact 'Harofreak00' for a good used one.



