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Originally Posted by Easy Ed
jmsspratlin, No problem. I don't get to contribute much to the site so when I see a chance to help I do.
Having a 2003 with 70,000 miles on it you could say I have got to know it pretty well. Seems like any time I work on it I have the camera handy.
Just did a lube, oil change and tire rotation for the umteenth time and as usual I removed the skid plate to make it easier for me and this time I found the head of a bolt laying on the skid plate.
Turns out one of the drivers side exhaust manifold bolts had the head break off. Going to fix it a soon as I can cause from what I understand the exhaust leak can cause the up stream O2 sensor to get a false reading from the exhaust leaking out the manifold and not passing the sensor. Well it does make sense to me 
Later, Ed |
I recently had a shop replace all of my exhaust header bolts. GM has newer replacement ones that are stronger and the bolt head is a little bigger. The broken ones came out with a stud remover and PB Blaster, so we got lucky we didn't have to drill any out.