Home page
SPONSOR AD

Topic: Car starts and runs for 3-6 seconds and just shuts off??

in Forum: C4 Electrical


Car starts and runs for 3-6 seconds and just shuts off??

Posted: 11/5/21 12:38pm Message 1 of 5
Profile Pic
Standard Member
Send PM
Joined: 11/5/2021
Posts: 1
Vette(s): 1996 LT1

1996 Base Coupe, new battery, fuel pressure regulator.  Hello all, I had an issue with a $1,600 Corvette I just bought the owner told me it would start up and shut off after three to six seconds. It does do this still. I did the fuel pressure which is good plenty of spark everything seems normal it starts up perfectly fine idles beautiful and then shuts off after three to five seconds. Anyone have any ideas? Thank you in advance.




SPONSOR AD:: (Our Sponsors help support C4VR)

Re: Car starts and runs for 3-6 seconds and just shuts off??

Posted: 11/5/21 3:07pm Message 2 of 5
Standard Member
Send PM
Equinunk, PA - USA
Joined: 11/12/2017
Posts: 76
Vette(s): 1993 LT1 convertible triple black 4L60 2003 Zo6 Electron/Black 6 sp

Greetings, Pick up filter in the tank?




Re: Car starts and runs for 3-6 seconds and just shuts off??

Posted: 11/5/21 6:12pm Message 3 of 5
Profile Pic
Standard Member
Moderator
Send PM
Duncanville, TX - USA
Joined: 3/18/2009
Posts: 2247
Vette(s): 1985 Coupe-L98/Auto,Bright Red/Carmine. 1974 Coupe-L48/4speed, Medium Red Metallic/Black Deluxe.

I'd be suspicious of the factory antitheft system. Have you tried getting any diagnostic codes out of any of the systems?




Joel Adams  
My Link

 
   
(click for Texas-sized view!)             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

Re: Car starts and runs for 3-6 seconds and just shuts off??

Posted: 11/6/21 5:07am Message 4 of 5
Standard Member
Moderator
Send PM
Joined: 3/20/2009
Posts: 611
Vette(s): Black 1979 L-82 Black 1996 LT1 Black 1999 Coupe
Adams' Apple said:

I'd be suspicious of the factory antitheft system. Have you tried getting any diagnostic codes out of any of the systems?


That....or....

 I would check for spark when the car will not start.

Look at ICM (ignition control module), and then head to the opti-spark.




Re: Car starts and runs for 3-6 seconds and just shuts off??

Posted: 11/11/21 5:22pm Message 5 of 5
Profile Pic
Standard Member
Send PM
Joined: 12/7/2011
Posts: 219

Water in the Opti-Spark. Mine would go a little farther but did same. I posted pictures quite awhile ago but it was rusted inside. Problem is the pain to get there. The cooling vent was leaking








|UPDATED|11/11/2021 5:22:42 PM (AZT)|/UPDATED|



in Forum: C4 Electrical


SPONSOR AD: (Our Sponsors help support C4VR)