I have a 92 Pontiac Grand Prix SE that has sereved me well, until now.
She has some starting issues. If I start her cold, she'll keep cranking
and cranking until she gets a little encouragement from me and my
accelerator and then runs... with black smoke. If I let her do all the
work, she just keeps crankng and struggles and finally kicks in. She
just recently started struggling at stoplights... never quits, just
struggles. Now, I have done some things and not sure where to go from
now. No error codes, fuel pump was checked for pressure 2 years ago,
fuel filter changed 2 years ago, spark plugs (you guessed it) 2 years
ago, had the crankshaft sensor replaced a few years back as well. I'm
running out if ideas here. It sounds like a fuel injector problem of
some sort, but not sure what else I can do except pay someone big bucks
to blow out my injectors. Any thoughts as to what else I can try?