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1989 Jeep Cherokee Laredo 4.0L Excessive Emissions, Poor Idle Quality
Posted to Chrysler Driveability on 9/28/2007 3 Replies

This vehicle came in with a rough idle and smells like gas.

Oxygen sensor has been replaced. It is a 5 volt O2 that when at 0v is rich and when at 5v is lean.

The vehicle stays rich at all times, about .15 volts. This vehicles computer does not store codes, ...

3 Replies Received (View Replies)

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Message Closed w/FIX

car Vehicle Data

1989 Jeep Cherokee Laredo

VIN 1J4FJ58L0K
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
SymptomsExcessive Emissions, Poor Idle Quality
OccursAlways
Message Closed w/FIX

car Vehicle Data

1989 Jeep Cherokee Laredo

VIN 1J4FJ58L0K
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
SymptomsExcessive Emissions, Poor Idle Quality
OccursAlways