I have loss of power and sluggish run at all speeds/rpms.
JA: What is the make/model/year of your car?
Customer: 2004 f150 fx4 5.4 motor just had new exhaust
from manifolds, new cats, muffler, and tail pipes there was a small exhaust leak on passenger side manifold that is why I replaced everything there is 217000 miles and plugs and coils were replaced a second time at 197000
JA: How many miles are on the car? How has your MPG been lately?
Customer: mpg has always been bad 12-15 since new. that is horrible but is what it is
JA: Are you fixing your vehicle yourself? What have you tried so far?
Customer: entire new exhaust system with new o2 sensors no codes. my mechanic could not find codes either there has been a knocking tapping sound since it had 2000 mi dealer said it was normal. It has gotten louder over the years but never has affected the performance
JA: Anything else you want the mechanic to know before I connect you?