1997 Toyota camry 4 cylinder
First it started over heating, so I
changed the thermostat. Then it
was running fine but just for a
little while then it started over
heating again. Only this time, the
car started to jump or skip when
I stepped on the gas to continue
driving, then it starts to lose
power then dies out on me. Then
it started to make this back-firing
noise. And it also sounds like
there's either too much air or
something. Next, I changed the
spark plugs, but it didn't really
help much. It was still back -
firing. What could be wrong with
my car? And what can I do to fix
it?