Main IndexAuto Repair Home Search Posts SEARCH
Who's Online WHO'S
Log in LOG

Search Auto Parts

check eng light

  Email This Post

New User

Feb 11, 2009, 6:58 AM

Post #1 of 2 (1736 views)
check eng light Sign In

2000 ford explorer 4.o lt. v-6 4x4 150 k miles check eng light comes on last for 2 to 4 days after turn off . new cats x 2 , cat senors x 4 checked w/ obv meter ,
light after runing codes , code p0142 ,144 ,said egr valve not working but is . runs rough when lights is on . i am a ex master mechainc and ex master computer
tech . thinking about taking apart the autos computr box and removing CMOS battery out and short the neg and pos so as to reset the cmos back to factory
setting . has any one done this ? or can ant one offer a diff sternoi .

Loren Champlain Sr
Veteran / Moderator
Loren Champlain Sr profile image

Feb 11, 2009, 4:57 PM

Post #2 of 2 (1731 views)
Re: check eng light Sign In

P0142 & P0144 are telling you that there is a problem in the EGR system. Not neccessarily (and probably not) the EGR valve, itself. The most common causes of these codes are DPFE sensor and/or plugged passageway. I would strongly recommend you stay away from the computer.Unsure
SW Washington

  Email This Post

Feed Button

Search for (options) Privacy Sitemap