alamogeorge
New Member
- Joined
- Dec 3, 2010
- Messages
- 30
- Reaction score
- 0
- Points
- 0
- Vehicle Year
- 2002
- Make / Model
- Ford
- Transmission
- Automatic
2002 3.0L FFV 130K miles.
Driving through the hill country one day and I noticed a lack of power going up the hills. I mean I had to put flashers on and let other vehicles pass. I pulled over at the next gas station and found the pcv hose in bad shape. It was a generic replacement hose with no elbow. Check Engine light came on and set a code of P0171 "lean right bank." I replaced the pcv and hose and reset the code. Performance didn't improve but the code never came back.
Changed air filter, which was super dirty, no change.
Cleaned MAF sensor....no change.
When I got home I found that, with the truck in Park, when I rev to 3000 rpm it shakes and surges. When I get to 3k rpm on the highway it just lacks power.
Next, I replaced fuel filter and that didn't change anything.
CEL now flashes when driving at highway speeds and set a code yesterday...I think it was P0306....anyway it was "misfire detected cylinder 6." Time to replace plugs anyway so I did that and no change. Reset code and didn't come back. BTW with the 306 it also set 2 codes of P0000. What does that mean?
I've checked all the hoses and don't see anything obvious.
A friend told me to spray wd40 around the throttle body while truck is surging/shaking and see if it levels out....it doesn't.
Next I was going to check the fuel pressure....
Any ideas?
Driving through the hill country one day and I noticed a lack of power going up the hills. I mean I had to put flashers on and let other vehicles pass. I pulled over at the next gas station and found the pcv hose in bad shape. It was a generic replacement hose with no elbow. Check Engine light came on and set a code of P0171 "lean right bank." I replaced the pcv and hose and reset the code. Performance didn't improve but the code never came back.
Changed air filter, which was super dirty, no change.
Cleaned MAF sensor....no change.
When I got home I found that, with the truck in Park, when I rev to 3000 rpm it shakes and surges. When I get to 3k rpm on the highway it just lacks power.
Next, I replaced fuel filter and that didn't change anything.
CEL now flashes when driving at highway speeds and set a code yesterday...I think it was P0306....anyway it was "misfire detected cylinder 6." Time to replace plugs anyway so I did that and no change. Reset code and didn't come back. BTW with the 306 it also set 2 codes of P0000. What does that mean?
I've checked all the hoses and don't see anything obvious.
A friend told me to spray wd40 around the throttle body while truck is surging/shaking and see if it levels out....it doesn't.
Next I was going to check the fuel pressure....
Any ideas?
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