93CutlassSupreme Posted August 16, 2004 Report Posted August 16, 2004 93 3.1 friday night, i got some gas, 89 octane Mobil. drove to my buddy's house, which is right down the street. park the car for the night sat morning, i go to merge on I-275, which is again, right down the street, and the engine misses, bucks and shakes in each gear, and backfires under acceleration. i'm hoping it's bad gas because it happened right after i filled up. i put in some dry gas and some fuel system cleaner, but nothing has happened so far. if this doesn't go away as the gas burns off, obviously i'm going to have to go to the next step. don't think it's the plugs, wires, or O2 sensor, as i changed them out with AC Delco parts 3 or 4K ago. maybe a bad injector? the car smells like something's burning, and my exhaust tips are jet black, never seen them that dark. checked for codes, only got a 12, we all know what that means. any ideas? Quote
GP1138 Posted August 16, 2004 Report Posted August 16, 2004 93 3.1 friday night, i got some gas, 89 octane Mobil. drove to my buddy's house, which is right down the street. park the car for the night sat morning, i go to merge on I-275, which is again, right down the street, and the engine misses, bucks and shakes in each gear, and backfires under acceleration. i'm hoping it's bad gas because it happened right after i filled up. i put in some dry gas and some fuel system cleaner, but nothing has happened so far. if this doesn't go away as the gas burns off, obviously i'm going to have to go to the next step. don't think it's the plugs, wires, or O2 sensor, as i changed them out with AC Delco parts 3 or 4K ago. maybe a bad injector? the car smells like something's burning, and my exhaust tips are jet black, never seen them that dark. checked for codes, only got a 12, we all know what that means. any ideas? Coilpacks and ICM. Have them tested and if they're bad go to a junkyard, I got mine cheap and it worked like a charm. Quote
93CutlassSupreme Posted August 17, 2004 Author Report Posted August 17, 2004 car's running better today, not 100% but it isn't shaking and bucking nearly as much was down to half a tank, i topped it off with some premium from a different gas station. if it keeps on improving i figure it was just bad gas Quote
94CutlassSLCoupe Posted August 17, 2004 Report Posted August 17, 2004 Probably was some bad gas...but why are you using anything but plain 'ol 87 in a 3.1 anyway...it doesn't need anything better Quote
93CutlassSupreme Posted August 17, 2004 Author Report Posted August 17, 2004 i know that, but if i do have bad gas, i'm gonna want to get good gas in as soon as i can. i figure higher octane gas will bring up the old shit quicker than regular Quote
Euro Posted August 17, 2004 Report Posted August 17, 2004 mine when i start it up every once in a while it will start funny and start to shake when i give it gas. A bad injector is the problem that i had with the shaking. But i dont know, now i think its the bad fuel filter and its not filtering the fuel and crap is getting into the injectors and clogging one of them. Quote
skiiirt Posted August 17, 2004 Report Posted August 17, 2004 If you know ur engine check the gaskets. Mine was doing that and I had to replace the gasket under the intake manifold. PITA to do (3hrs +) Quote
93CutlassSupreme Posted August 18, 2004 Author Report Posted August 18, 2004 just bad gas car runs normal again. now, if i could figure out my brakes...... i won't be going to that gas station again! Quote
midnight rider Posted August 27, 2004 Report Posted August 27, 2004 whats up with your brakes? Maybe i might have an idear or two... Quote
GutlessSupreme Posted August 27, 2004 Report Posted August 27, 2004 whats up with your brakes? Maybe i might have an idear or two... They want him dead. Quote
White93z34 Posted August 28, 2004 Report Posted August 28, 2004 They want him dead. hahaha its true out 1st gen brakes aren't the best when it comes to panic stops. how many of your rotors are new, used, recut etc? Quote
93CutlassSupreme Posted August 29, 2004 Author Report Posted August 29, 2004 my front rotors are brand new, my rear rotors are brand new, but 3 or 4 months old any ideas, midnightrider? Quote
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