A few questions
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A few questions
I have a new to me 2004 Explorer XLT 4.0 SOHC. It throws the code PO401. I know this indicates insufficient EGR flow. I have also read that if can be caused by a bad DPFE sensor. Looking for the sensor, it appears to be a part of the EGR valve assembly. Can it be replaced separately? I am guessing not.
Where should I begin to look to solve the slow filling fuel tank? I checked the filler hose and saw no kinks or anything obvious. It also throws a PO463 fuel level sensor high reading. Could this be related?
I also need to replace the rear wheel bearings. Any recommendations as to brand?
Thanks for any advice.
Where should I begin to look to solve the slow filling fuel tank? I checked the filler hose and saw no kinks or anything obvious. It also throws a PO463 fuel level sensor high reading. Could this be related?
I also need to replace the rear wheel bearings. Any recommendations as to brand?
Thanks for any advice.
Hotshot
Joined: Jul 2005
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as you fill the gas tank, the air inside gets compressed and must escape.. There should be a vent hose near the top of the fill neck for the air to get out.. it could be pinched or plugged.. you might get under the truck, remove that small hose and see if that helps.. or blow air thru it to see that it is open.
Wheel bearings by TIMKIN are probably the best. You can buy cheaper, but most will be china.. not saying they are bad, but the quality may not be the same. Rear bearings must be removed and reinstalled onto the hub/ knuckle with a 20 ton press. If you don't know the procedure, don't start process.
Wheel bearings by TIMKIN are probably the best. You can buy cheaper, but most will be china.. not saying they are bad, but the quality may not be the same. Rear bearings must be removed and reinstalled onto the hub/ knuckle with a 20 ton press. If you don't know the procedure, don't start process.
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Joined: Apr 2013
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as you fill the gas tank, the air inside gets compressed and must escape.. There should be a vent hose near the top of the fill neck for the air to get out.. it could be pinched or plugged.. you might get under the truck, remove that small hose and see if that helps.. or blow air thru it to see that it is open.
Wheel bearings by TIMKIN are probably the best. You can buy cheaper, but most will be china.. not saying they are bad, but the quality may not be the same. Rear bearings must be removed and reinstalled onto the hub/ knuckle with a 20 ton press. If you don't know the procedure, don't start process.
Wheel bearings by TIMKIN are probably the best. You can buy cheaper, but most will be china.. not saying they are bad, but the quality may not be the same. Rear bearings must be removed and reinstalled onto the hub/ knuckle with a 20 ton press. If you don't know the procedure, don't start process.
I figured that the Timken would be best, I know that some other name brands have farmed out production to china. I know the procedure, and have access to what I need to do it.
I did blow the hose near the filler and it did flow air, but i think that routes to the evap canister. I need to check further....
Another question, are any of the aftermarket timing chain tensioner dampers (screw into the heads) any good? I am getting a little rattle on startup occasionally, and understand these should be replaced periodically.
Senior User
Joined: Apr 2009
Posts: 118
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From: Isanti, MN
Timken aren't as good as they used to be, but I'd rather use Timken or Moog suspension parts over anything made in China when it comes to bearings. I read too many reviews where wheel bearings from China lasted roughly the equivalent of 3 oil changes ( not synthetic! )
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