Hello i am an ASE certified mechanic this 99 Youkon is giving us fits we
cannot get the firing order corect i am old an old school mecanic can i use the
orig. firing order?
So you say you are an ASE mechanic and you don't know about correct firing orders. Wow, I am stunned, just stunned. The firing order can't be changed unless the camshaft is changed to match it. You would have to look up the correct firing order for that particular vehicle and engine and make it work.
Hey bud, yes i was an ASE certified mechanic igot hurt years ago & now i am in A wheelchair! some people have a case of thedumb @ss
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