I use Lucas or SeaFoam fuel additives.
Buzzing noise when a/c is on/off and gets worse if I shift to drive/reverse. It's been like this for awhile probably 5 months or so. Summer is approaching and I live in Tx so, yea..Also there is a belt squeal the one left of the engine (is that the serpentine belt?); sprayed a little lube on it almost everyday since it occurred 2 weeks ago and it's not as loud. When I replaced my thermostat a few months back I used the Prestone 50/50 (yellow container) to fill up and I didn't notice I was suppose to use Prestone DEX-COOL 50/50. Did I mess up my car? If so how long until it's ruined. I've been broke since I do support myself and have school, I know I'm suppose to get these things fixed pronto just been struggling:bang:
So I had my plugs and wires replaced not even a month ago and other day it stalled out then was stuck in 8cyl mode. Took it in and it was a misfired plug, so they replaced the plug free of charge. The plug looked bad, had oil in it. They suggested taking a look at the valves. Said it would be 8 hours labor. Any suggestions? Could it be the DOD/AFM spitting oil into the plugs?