trying to trouble shoot this, it will seem too fire, but not run. pulled some stored codes then cleared. no new codes. have done a number of things, (crank sensor,fuel pump@44psi,map sensor,) but still hunting for solution.
https://photos.app.goo.gl/P45HywVLkqMw2Ucv8
242 crank,no start, no codes, 8.1gi 400 with video
- Big Block Power
- Fleet Admiral

- Posts: 17930
- Joined: Sat May 07, 2016 8:05 pm
- Location: Neenah,Wi
- Contact:
Re: 242 crank,no start, no codes, 8.1gi 400 with video
Try a iac valve. Sounds like it wants to start. You have fuel you have spark and unless you're in Cali you have air.
03Cobalt220 8.1gxi DP
"Kids in Tow2"
"Pot The Jus" Originator :-)
Neenah Wi
#ItsBu'sfault
#FARCON Marine CC Core!
"Kids in Tow2"
"Pot The Jus" Originator :-)
Neenah Wi
#ItsBu'sfault
#FARCON Marine CC Core!
- AsLan7
- Fleet Admiral

- Posts: 11458
- Joined: Sat Jul 29, 2017 10:58 am
- Location: Erie PA
- Been thanked: 1 time
- Contact:
Re: 242 crank,no start, no codes, 8.1gi 400 with video
.Sostahoe wrote: Sun Sep 13, 2020 9:13 am trying to trouble shoot this, it will seem too fire, but not run. pulled some stored codes then cleared. no new codes. have done a number of things, (crank sensor,fuel pump@44psi,map sensor,) but still hunting for solution.
https://photos.app.goo.gl/P45HywVLkqMw2Ucv8
Hey sostahoe. Welcome to the Cobaltchat forum. So glad you found us!
Thanks for posting a vid and pics. It’s tough to diagnose from the internet but initial indications point to an Idle air control valve like bbp mentioned.
Check out this thread here where it was also discussed.
Keep us posted. And again, welcome aboard mate!
.
.
You do not have the required permissions to view the files attached to this post.
2002 Cobalt 262
&
2005 Cobalt 263
496 MagHO
(sold )
Erie, PA
Currently boatless (for now)
will fly for food
(CChat moderator)
&
2005 Cobalt 263
496 MagHO
(sold )
Erie, PA
Currently boatless (for now)
will fly for food
(CChat moderator)
Who is online
Users browsing this forum: No registered users and 39 guests
