Replaced Bad/melted Coil, But Will Not Start
My wife was driving our 07 XC90 3.2 one day and it starts running rough
and the "check engine" light started flashing and also the display panel to
the left said, "slow down or gear up". Within seconds the car stalled and
would not start. The engine would turn over, but not start. I am no mechanic,
but I try to do as many of our car repairs as possible. To avoid an expensive
mechanic bill, we had it towed home. Going by what my wife had told me I
immediately went online and did some research and came to the conclusion
that it was most likely a bad coil. When I got a chance to take a look I could
see that the coil on the far left was obviously bad. It had a small crack on
the top and had considerable melting/deformation. One main concern was
what made it melt in the first place, but not having a code reader or
mechanic handy I thought the best thing for me to do would be to replace
the bad coil and put a new plug in that cylinder, then I could drive it
somewhere to have it looked at to see if there was another issue that
needed to be addressed. If this fixed the problem I would change the other
five plugs as well because I know it's been over 100,000 miles since they
were replaced (if ever). Anyway, I changed the plug, put in the new coil and
tried to start the engine. Much to my disappointment it is still not starting. My
assumption is that whatever made the coil melt in the first place is what is
preventing it from starting, or that maybe when the coil went bad that
somehow damaged or triggered something else. I am not sure what to do at
this point and my car knowledge is somewhat limited. I know the easiest
thing to do would be have it towed to a mechanic and have it fixed, but I
simply don't have the money for that right now, at least not for a $1000+ bill.
Any ideas or suggestions would be greatly appreciated.