Will a tune-up fix this (idle going up & down)?
#1
Will a tune-up fix this (idle going up & down)?
I'm an admitted newbie to tune-ups so here goes...
Bought a '97 XLT a year ago with the 4.0L V6. Didn't need to do a whole lot of anything to it except filter changes when I bought it. Has run fine all this time and have been getting decent gas mileage (btwn 19-20mpg hwy).
Within the past two months, it's started to run rougher. The idle goes from around 2500rpm to nearly dying. Gas mileage is down below 17mpg hwy now.
Was going to change plugs, wires but is there something else I need to look at as well? O2 sensors? Air filter still looks real good, but should I think about changing it as well?
Bought a '97 XLT a year ago with the 4.0L V6. Didn't need to do a whole lot of anything to it except filter changes when I bought it. Has run fine all this time and have been getting decent gas mileage (btwn 19-20mpg hwy).
Within the past two months, it's started to run rougher. The idle goes from around 2500rpm to nearly dying. Gas mileage is down below 17mpg hwy now.
Was going to change plugs, wires but is there something else I need to look at as well? O2 sensors? Air filter still looks real good, but should I think about changing it as well?
#2
#4
#6
Been a couple of days now since I cleaned my IAC. Hasn't really helped the situation. Idle is still unsteady and gas mileage still stinks. Waiting for the weekend to kind of dive in and take apart everything for the air leading into the intake. Any suggestions what to look for, other than what's already been mentioned?
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4.0L OHV & SOHC V6 Tech
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01-16-2007 07:58 AM