95TahoePA
Full Access Member
So, I did a tune-up on my Tahoe last Friday (7-19-13) and decided to get the E3 plugs to treat her right.. Plus they claim better gas mileage! Well, I am an example of the “more expensive is not better”.
Well, truck ran great….. for 5 mins. Then she started sputtering, misfiring, choking and plainly just didn’t want to idle correctly at all. So, scratching my head I though since the truck had 250K on it, maybe the Fuel pump was going. Tested the fuel pressure.. It was fine.Had the EGR ckecked.. Fine IAC motor cleaned of all carbon and checked.. Perfect.. nothing wrong with the IAC. Fuel Pressure regulator checked out fine as well. Which lead me to believe it was cap and rotor or timing. Changed the cap & Rotor again. Still ran crappy.. Had it timed. Guy charged me $15 because he didn’t have to do anything. It was at 0 deg. Mindboggled, I decided to make sure all plugs were tight once again.. they were. So I pulled #2 cylinder plug out JUST to take a peak to see if the plug was wet, oily etc and got the surprise of my life! See photos.
Well, truck ran great….. for 5 mins. Then she started sputtering, misfiring, choking and plainly just didn’t want to idle correctly at all. So, scratching my head I though since the truck had 250K on it, maybe the Fuel pump was going. Tested the fuel pressure.. It was fine.Had the EGR ckecked.. Fine IAC motor cleaned of all carbon and checked.. Perfect.. nothing wrong with the IAC. Fuel Pressure regulator checked out fine as well. Which lead me to believe it was cap and rotor or timing. Changed the cap & Rotor again. Still ran crappy.. Had it timed. Guy charged me $15 because he didn’t have to do anything. It was at 0 deg. Mindboggled, I decided to make sure all plugs were tight once again.. they were. So I pulled #2 cylinder plug out JUST to take a peak to see if the plug was wet, oily etc and got the surprise of my life! See photos.