As I've said before, I do a full tune up on everything I buy unless the po can prove when it was last done. This tune-up is being piece mealed because of time & weather constraints. I have having open projects, but it happens, so I do my best to avoid them.
So far we have a burban w/ a 158k mi, supposedly the original drivetrain. no codes & ran good when I bought it. I replaced the plugs w/ AC Delco Rapidfires, which is what was in there. Promptly afterwards the check engine come on & I have a p0300 code. I double check everything, everything is correct/I didn't forget anything. So I figured that it was one of the spark plug wires, it must've been on its way out & I disturbed it. Not a biggie, I already bought wires & will do when I had time. Got time, replaced the wires. No change. Doubled checked the firing order, I couldn't have screwed it up, I only did one @ a time. Oh well, next up is the cap & rotor.
Did the cap & rotor yesterday afternoon.
old rotor, duh
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Don't know about you, but I think it's junk.
Even says Delco Remy on it. Quite possibly the original