rcengco
New Member
- Joined
- February 2, 2010
- Messages
- 4
- Reaction score
- 0
- City, State
- massachusetts
- Year, Model & Trim Level
- '99 xlt
I bought a 1999 Ford xplorer last September. Getting great ga mileage 21-22 mpg. In December I decided to have all the fluids changed. Oil and oil filter, fuel filter, air cleaner and trans flush no filter replacement.
As soon as I drove aaway my mileage dropped to 17 mpg. I was driving 80 miles highway to work every day with a 4 mile and 1 mile city trave at each end. After 3000 miles of this since the JIffy Lube service my mileage is still down at 17 if I'm luck. Someone said the PCM needed to reset itself. Wouldn't it have reset since then. Just recently chnage the trans filter and fluid thinking there may be something there but no change.
Then I heard that the PCM may NOT reset itself......what's the reason for not reseting?????
The only performance difference I notice is that I used to be able to start up with no gas pedal input just fine. Now if I don't use the gas pedal, the truck almost stalls/stumbles then catches.
Any Ideas????? This is driving me nuts !!! Please remember the change was instantaneous after the Juffy Lube service.
TIA
As soon as I drove aaway my mileage dropped to 17 mpg. I was driving 80 miles highway to work every day with a 4 mile and 1 mile city trave at each end. After 3000 miles of this since the JIffy Lube service my mileage is still down at 17 if I'm luck. Someone said the PCM needed to reset itself. Wouldn't it have reset since then. Just recently chnage the trans filter and fluid thinking there may be something there but no change.
Then I heard that the PCM may NOT reset itself......what's the reason for not reseting?????
The only performance difference I notice is that I used to be able to start up with no gas pedal input just fine. Now if I don't use the gas pedal, the truck almost stalls/stumbles then catches.
Any Ideas????? This is driving me nuts !!! Please remember the change was instantaneous after the Juffy Lube service.
TIA