Towing with 2006 F-150 and lost power at stop. Previously had my truck tuned up replaced the air filter to a K and N filter . Also rebuilt the transmission with a shift kit in December. Started loosing power at stop and sputtering but no check engine light came on. Had diagnosis done with no codes and mechanic is baffeled. Help!

 

Welcome to Fte, we need more info... Year, 4 by or 2 by, mileage, what was done in tune up, etc..

Just based on what was posted, these trucks do not like non OEM plugs and the earlier years hate k&n.

 

2006 4x4 crew cab, 115,000 miles . OEM Plugs, wires, k and N filter. New Battery. Oil and oil filter.

 

I would check the throttle body, it may be filthy from the oil from the k&n . That may be making the motor run bad

 

Thanks for input.

 

Seems the K&N is not good for the MAF sensor either due to the oil. I took mine off and went back to the paper model.

 

k+n is fine if you know how to oil it properly. My truck is a very early 04 and I have ran a k+n in it since I bought it in Sept of 05. no problems. I think some people who have problems oil the clean side of the filter when they recharge the filter, which you are not supposed to do. I just cleaned and oiled mine last weekend. So these trucks do not hate k+n filters but a lot of people on here do.

 

Took my vehical into stealership and had it hooked up to get diagnostic. It showed P0345 (cylinder id circuit faulty bank 2) and P0340 (cam sensors circuit) with check engine on for first time after I took it in. Followed pinpont with no faults found for codes. They checked engine oil pressure and found low engine pressure at idle hot with pressure at 14 psi and specs. are 25. Laundy list that followed was timing chain tensioner, causing codes, tensioners, chains, arms, guide, gaskets, and labor. No work approved. Vehical home and purchased two CMP sensors and will replace first. More to follow.

 

That may be true but apparently K&N doesn't know how to oil their filters properly either. I'll quote right off my cleaning instructions that come in the box "Spray K&N Air Filter Oil evenly along the crown of each filter pleat holding nozzle about 3" away. Allow oil to wick for approximately 20 minutes. Touch up any light areas on either side of the filter until there is a uniform red color on all areas."

 

Either side of the pleat, not inside and out

 

well, not to get the thread off topic, but mine plainly says in the instructions "do not spray oil on the clean side of the filter".I think if it oil was sprayed on that side of the filter it would not be good, that could lead to a problem.

 

J.R. Rocha,

How did you make out?

-Steve

 

If your losing oil pressure on one bank you may very well have a timing chain tensioner seal blown out. I have never had an issue with k&n filters. Heard alot of horror stories but they have always worked well for me. I never oil the clean side either.