2001 chevy silverado 4x4 4.3 liter standard transmission
So where do I start. Driving down the hi-way and the truck felt like it lost its power. While in fourth gear it did not want to accelerate past 2000 rpm. I pulled over to check any codes. P0101 & P0304. Cleared the codes and went on my way. Truck drove normal...for awhile. About 45 min of driving started to happen again. So I limped back to the nearest town. Replaced my MAF (PO101) as directed by my mechanic over the phone. $230 later did not fix the problem. If anything it seemed to get worse. Unplugged my MAF as directed and limped home. While driving home the truck started surging and smelled like exhaust ( gas like smell but not quite ). As well my oil pressure started fluctuating low to normal. My oil was darker, not black, but much darker by the the time i got home. The oil level did not change. Last but not least, by the time I got close to home the acceleration was gone in third gear and then second. Before, I had somewhat normal accel. in the lower gears then not. The problem started about 1 mile after I filled up. Sounds like a coincidence to me though. I know that's a lot but any suggestions would help!!!
So where do I start. Driving down the hi-way and the truck felt like it lost its power. While in fourth gear it did not want to accelerate past 2000 rpm. I pulled over to check any codes. P0101 & P0304. Cleared the codes and went on my way. Truck drove normal...for awhile. About 45 min of driving started to happen again. So I limped back to the nearest town. Replaced my MAF (PO101) as directed by my mechanic over the phone. $230 later did not fix the problem. If anything it seemed to get worse. Unplugged my MAF as directed and limped home. While driving home the truck started surging and smelled like exhaust ( gas like smell but not quite ). As well my oil pressure started fluctuating low to normal. My oil was darker, not black, but much darker by the the time i got home. The oil level did not change. Last but not least, by the time I got close to home the acceleration was gone in third gear and then second. Before, I had somewhat normal accel. in the lower gears then not. The problem started about 1 mile after I filled up. Sounds like a coincidence to me though. I know that's a lot but any suggestions would help!!!