40L97
New Member
- Joined
- October 6, 2003
- Messages
- 1
- Reaction score
- 0
- City, State
- Austin, TX
- Year, Model & Trim Level
- '97 XLT
I've had check engine light on for a while. Got it coded @ autoshop & was told it was an 02 sensor -- no big deal. I've been running for a while no problem but have now noticed a drop in gas mileage.
I plan on cleaning MAF & replacing the O2 sensor, but how dow I tell which is bad? From reading posts I see that my '97 4.0L XLT has 3 sensors.
Thanks.
I plan on cleaning MAF & replacing the O2 sensor, but how dow I tell which is bad? From reading posts I see that my '97 4.0L XLT has 3 sensors.
Thanks.