Rough Idle Stall Poor Gas Mileage

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Rough Idle Stall Poor Gas Mileage

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Ford Forum >> Ford Cars >> Ford Five Hundred >> Rough Idle Stall Poor Gas Mileage

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Rough Idle Stall Poor Gas Mileage - 10/24/2007 2:39:37 PM

cabertschi

Posts: 1
Joined: 10/24/2007
Status: offline

I have a 2005 Five Hundred with 42,000 miles. I'm experiencing rough idle, stalling, and poor gas mileage. Since my purchase in May 2007, city mileage has dropped from 20mpg to 18mpg. The engine light is not on. I have taken the vehicle by Auto Zone and their code reader revealed no codes. Any ideas?

Post #: 1

RE: Rough Idle Stall Poor Gas Mileage - 10/25/2007 7:55:04 PM

94Blk5.0

Posts: 60
Joined: 8/11/2007
Status: offline

How many miles are on the car?

Are the basics coveres like; fuel fitler, air filter, tire pressure, clean thorttle body?

Probably would hurt to run some fuel system cleaner through your next tank of gas.

_____________________________

1994 Mustang GT
Black/Tan 5speed
A Few Bolt-ons

1996 F150 XLT
RC/SB, 4X4
5.8, Auto
3.55's with Rear Posi
Towing Package

Other Fords in the Family:
1994 Taurus: 3.0 with 167K Miles
1995 Aerostar: 4.0

(in reply to cabertschi)

Post #: 2

RE: Rough Idle Stall Poor Gas Mileage - 10/26/2007 5:12:28 PM

newguy18

Posts: 21
Joined: 10/15/2007
Status: offline

Give it a good tune up and check the throttle positioning sensor.

(in reply to cabertschi)

Post #: 3