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Both banks are to lean, all cylinders missfireing. Random,

Both banks are...

Both banks are to lean, all cylinders missfireing

Mechanic's Assistant: How many miles are on the car? Is it a steady misfire? Or random?

Random, 2000 explorer,xls, 130,000 miles

Mechanic's Assistant: Are you fixing your Explorer yourself? What have you tried so far?

Got plugs& wires, airfilter, pvc valve

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

I pluged in pocket tester got 8 error 6 cyl miss& banks 1&2 to lean

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Answered in 2 minutes by:
3/8/2018
Ron
Ron, ASE Certified Technician
Category: Ford
Satisfied Customers: 38,620
Experience: 23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
Verified

Hello. My name is ***** ***** I am happy to assist you today. Give me just a moment to review your post, and I'll be right back with the help you need.

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Which engine are you running, the 5.0 or the 4.0?

Are you getting the code P0171 and P0174?

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Customer reply replied 4 months ago
p0301thru6 p0171&4
Customer reply replied 4 months ago
4.0
Customer reply replied 4 months ago
uthere
Customer reply replied 4 months ago
hello
rpmdiag
rpmdiag, Tech and Instructor
Category: Ford
Satisfied Customers: 8,983
Experience: Since 1975
Verified

Hi, this is Ron, a different expert.

The most common things that will cause this with lean codes is an internal vacuum leak that you need to find with a smoke machine, or a bad fuel pump or plugged fuel filter.

The best thing to check right now is the freeze frame data for the codes and check MODE 6 on the scan tool as well.

Please understand that I don't know your skill level or tools
you have to assist us. Also understand that I can't see, smell,
hear, or touch the vehicle either, so your patience is
appreciated. JA is a great Q/A site, but it does not replace a
repair shop. So please don’t shoot the messenger if I have to
deliver bad news:)
pops up. I don’t get credit for helping you until
you rate me

Thanks, Ron

rpmdiag
rpmdiag, Tech and Instructor
Category: Ford
Satisfied Customers: 8,983
Experience: Since 1975
Verified
rpmdiag and 87 other Ford Specialists are ready to help you
Ask your own question now
Customer reply replied 4 months ago
ty ron , slow at typeing, ugot time fo a few ?s

I'm here for a bit,yes.

Thanks again, Ron

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