SPONSORED LINKS

1998 Ford Expedition MAF Sensor/ Checking MAF sensor

Tiny
KEVINJRGASTON
  • MEMBER
  • 1998 FORD EXPEDITION
  • V8
  • 4WD
  • AUTOMATIC
  • 207,700 MILES
What's an easy and good way to check the MAF sensor on a Ford Expedition 5.4L? It has thrown a code about reading too lean, I dont remember the code number, but it was reading too lean on Bank 1. I did a little research and found that the most common cause is a bad/dirty MAF sensor. I just cleaned it, but it is still idling higher than it used to, but no check engine light after I had it erased.
SPONSORED LINKS
Tuesday, August 10th, 2010 AT 11:26 AM

5 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,874 POSTS
If it isn't setting the same code, I think you fixed that problem. I have to say this, the MAF will not only affect one bank of the engine. It will have an effect on both. How high is it ideling at this point?
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Tuesday, August 10th, 2010 AT 11:22 PM
Tiny
KEVINJRGASTON
  • MEMBER
  • 17 POSTS
Between 1&1.5
Was this
answer
helpful?
Yes
No
Wednesday, August 11th, 2010 AT 7:58 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,874 POSTS
1K isn't too bad, but above that is getting high. To provide the testing info, I need to know the exact engine size, 4.6 or 5.4L and the original code PO102 or PO103.
Was this
answer
helpful?
Yes
No
Wednesday, August 11th, 2010 AT 9:43 PM
Tiny
KEVINJRGASTON
  • MEMBER
  • 17 POSTS
P0102 and 5.4
Was this
answer
helpful?
Yes
No
Wednesday, August 11th, 2010 AT 10:17 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,874 POSTS
I looked it up for you but you need specialized equipment to check it. It is about 4 pages long of tests.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Wednesday, August 11th, 2010 AT 11:03 PM

Please login or register to post a reply.

Related Mass Air Flow Sensor Clean Content

Mass Air Flow Sensor Clean Ford Explorer
VIDEO
Mass Air Flow Sensor Clean Ford Explorer
Instructional repair video
Mass Air Flow Sensor Cleaning
GUIDE
Mass Air Flow Sensor Cleaning
A mass air flow sensor (MAF) is used to measure the air flow that enters the engine at any given RPM range and is monitored by the vehicle's computer to make adjustments to...
VIEW MORE

Sponsored links