running poorly
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running poorly
i have a 1999 F-150 lariat 4.6 2x4 x-cab.
been having issues with what seems to be a miss but haven't had a code. i put new wires and that solve a lot of the issue but after warming still having a lack of true performance as it was. this was an all of a sudden thing, as in , i took a left turn and this issue occurred. 150k with a tune up and heater, radiator and a/c replaced when it was my dad's truck 3 or 4 years ago by the dealer. i just don't have the finance to do as much and am looking for answers here, please help!!!
thanks!!
A
been having issues with what seems to be a miss but haven't had a code. i put new wires and that solve a lot of the issue but after warming still having a lack of true performance as it was. this was an all of a sudden thing, as in , i took a left turn and this issue occurred. 150k with a tune up and heater, radiator and a/c replaced when it was my dad's truck 3 or 4 years ago by the dealer. i just don't have the finance to do as much and am looking for answers here, please help!!!
thanks!!
A
Lead Driver
Joined: Sep 2006
Posts: 7,907
Likes: 143
I would like to help if possible but you need to get more specific about drivability because running poorly is pretty broad.
I would recommend a Scanner be used to look at live data for a source of any issues.
Down on power could be the cats are partially plugged.
A look at the front and rear Ox Sensor performance might give a clue.
The fuel Trim tables may give a clue.
Without something to go with it's all just guessing with money spent you don't have.
Good luck.
I would recommend a Scanner be used to look at live data for a source of any issues.
Down on power could be the cats are partially plugged.
A look at the front and rear Ox Sensor performance might give a clue.
The fuel Trim tables may give a clue.
Without something to go with it's all just guessing with money spent you don't have.
Good luck.
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