• Register

AutoCodes.com FREE Android App
Ask OBDII Question
Please write Make, Model and Year of your vehicle

Find local automotive repair shops in your area | AutoCodes.com Local
Need A Repair Shop?
Find local automotive repair shops in your area.
AutoCodes.com Shops

34,725 questions

21,154 answers


22,796 users

Top Users

Reynaldo 9,598 Points
Carguy1 4,959 Points
G37driver 3,517 Points
OBDIITech 2,745 Points
OBDtech2 165 Points
corvette-78 127 Points
knowledge 1488 124 Points
Lemuel Alfaro 117 Points
Samat Bekov 117 Points
ptl 113 Points

CCan code 0300 indicate a cracked exhaust manifold bad crankshat problem

2009 TrailBlazer 4.2 6th cyl. coil replaced but check engine light stay on?
Vehicle: 2009 Trail Blazer LT 4.2 in line 6
asked Feb 6 by al nettles

1 Answer

Hi there

Normally a cracked exhaust manifold will not cause this type of code. If the coil didn't resolve the issue then check the spark plugs, check for intake manifold leaks and also check for low fuel pressure.
answered 3 days ago by Carguy1 (4,959 points)

Related Information

Related questions

1 answer
71 views asked Jul 17, 2015 by Dori
1 answer
46 views asked Jan 13, 2014 by John
Home - About AutoCodes.com - Privacy Policy - Terms and Conditions - Copyright 2010-2016 AutoCodes.com

AutoCodes.com - HelpForCars.net - Infinitihelp.com - Nissanhelp.com