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rpmdiag
rpmdiag, Tech and Instructor
Category: Ford
Satisfied Customers: 8138
Experience:  Since 1975
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2001 Ford Focus hesitates when pressing pedal and sometimes

Customer Question

2001 Ford Focus hesitates when pressing pedal and sometimes completely stalls. Had mechanic change fuel filter and pump. New plugs and wires also.
JA: Is the fuel filter an external one, or is it inside the tank?
Customer: External
JA: Are you fixing your Focus yourself? What have you tried so far?
Customer: Now yes
JA: Anything else you want the mechanic to know before I connect you?
Customer: The car is very loud. Idles a little rough but okay. The main problem is when trying to accelerate it will hesitate or stall
Submitted: 1 month ago.
Category: Ford
Expert:  rpmdiag replied 1 month ago.

Hi, I'm Ron and I will be helping you today.
Stand by for a moment while I prepare your answer.

Expert:  rpmdiag replied 1 month ago.

The MAF sensor and TP sensor needs to be tested. Either one of these can cause this issue and can be easily tested with a scope.

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:)
If you are satisfied with my answer, I would greatly
appreciate a 5 star rating now before you leave the site and I
will still assist you after you have rated me too if another
question pops up. I don’t get credit for helping you until
you rate me

Thanks, Ron

Expert:  rpmdiag replied 1 month ago.

Did you have any more questions for me at this time?

Thanks again, Ron

Expert:  rpmdiag replied 1 month ago.

Thanks again and please remember to rate me 5 stars now
and keep this link in case you need me again later on.
I don’t get credit for assisting you until you rate me
My goal is to assist you in the repair of your vehicle by
supplying you with well educated information. I may not
always have the exact fix you wanted to hear, but my job is
to get you on the right track, which I always do. I can’t hear,
see, smell or touch your vehicle from where I’m at, so your
understanding of that is greatly appreciated. There are no
magical answers, but I do my best to guide you in the right
direction.

Ron