Po301 and ticking noise
07 cobalt 2.2 suddenly died, was driving fine up to
that point. Battery was replaced along with
alternator a few months before. Changed plugs
finally started with horrible chain slap noise. Only
code was po301 and po171. Replaced timing chain
and components. Replaced crankshaft tensioner,
crankshaft chain looked fine. Note: timing chain
was slightly loose but not broken. Then had no
start no crank, found starter was gone replaced ed
starter, starts fine. Makes slight ticking noise, now
code po301 back again and really low on power.
Doing a compression check today but any other
ideas?
