1999 GMC SIERRA
Bank 1 and 2 lean are running lean.
I have replaced MAF and checked the Vacuum hoses, Air intake, and PCV.
The SES light is intermitint and will turn on and off every few days.
There is also a slight miss when at an idle but not enough to throw a code.
What should I check next?
have the same problem?
Tuesday, December 7th, 2010 AT 12:48 AM