2006 ford focus vibrating and rattle noise when accelerating

SOURCE: 1998 FORD EXPLORER SPORT 4X2 4.0 OHV

I have 98 explorer im getting same codes ive worked on cars all my life I havent replaced anything but my fuel filter so far on the explorer and that wasnt it.I know people tell you to replace all that other stuff,but if you know cars and how the stuff works thats on a car then you can fix anything with out people telling you;you need to buy this and then this and there just fishing when the dont know there as* and whole in the ground.Im going to replace my lower and upper intake seals like he says above.At least theres one more smart one out there and not someone that thinks they know it all like people that work in the parts places and some dealers.

SOURCE: CODES P0171 & P0174 EMISSION SYSTEM SERVICE

if you have the 3.8 liter its more than likely bad intake manifold gaskets or a cracked manifold. Ford has had several TSBs on this issue. O2 sensors do not go bad as often as mechanics say they do. I have a 1999 that after 100 dollars at the parts store solved all lean conditions on the top end. The manifold has three parts to it. A lower aluminum that houses the butterfly blades for the variable intake runners( known vacuum leak were rods protrude at passenger side of lower bad bushings likely cause). Middle riser which uses oring seals which dry out and cause major vacuum leaks. upper is more or less the top cover which uses one large oring to seal. Hope this helps!

SOURCE: code was P1443. I put

you need to have the computer reset to get the check engine light to shut off there is a list of error codes that has to be cleared from the computer so the check engin light will shut off but it wont hurt to drive with the light on for a while as long as you fixed the problem

mike loshbough

• 1011 Answers
• Posted on Nov 10, 2009

SOURCE: Getting a code of misfire on cylinder 2, Bank 1 and lean code

Higher compression usually only happens when extra oil is introduced in to the cylinder.Your rings seem good due to the good compression .If there is a worn valve guide in that cylinder this would allow oil to seep into the cylinder .Also allowing for extra rocker arm movement which could be your chirping noise and cause a rough idle.The lean code sounds like something different like the is still a vacuum leak.It sounds like you know cars well ! I hope this helps

SOURCE: my ford f150 4.9 inline 6 stalls when you

What engine code is stored in the computer? You may have a bad TPS (throttle postioning sensor), or a bad O2 sensor. Auto Zone can retrieve the code for you, and tell you what sensor it is related to.