Fuel pump colamity
I have a 1999 Pontiac Firebird with the 3.8 v 6. Im haveing fuel pump issues. this will make the third time swaping the fuel pump/sending unit. The unit keep burning up and im not letting it get below a quarter of a tank. The engine is also missfiring heavly at idle but smooth out mostly at high way speeds. At idle it the exhaust smells raw fuel. I have changed the battery, altenator (which was checked and inspected), coil packs, spark plugs, and wires. Im running out of options on diagnoseing the issue and a certified mechanic tells me its your altenator. I dont know if it is the computer gone haywire or fuel injectors, loss of compression or what, All i can tell you is the day this started i was sitting at mcds on the internet for a while with the car running and it started hesitating and died on the way home and this will make the third time with the fuel pump/ sending unit and second time with trans seeing that the engine was acting up and cause the trans to shift hard and lose two bands in the trans for second and overdrive. anyyyy takers on helping me diagnose this would greatly be appreciatedddddddd