Ford

Have Ford Questions? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Ford
This answer was rated:

Ford Crown Victoria Police ABS brake problem with 1997 Ford

ABS brake problem with 1997...
ABS brake problem with 1997 Ford Crown Victoria, VIN 2FALP71W8VX18XXXX, with 184,000 miles on it.

The outer rear wheel bearings have no inner races; they ride on a case hardened surface on the axle shafts. This case hardened surface failed on the left axle, and the axle wore about a sixteenth of an inch deep all around. Examination of the right axle revealed no wear, but it did have some cracks in the surface. The axle housing was cleaned of metal particles, and both rear axles, outer rear wheel bearings, and seals were replaced. The ABS exciter rings are integral with the axle shafts, so they are new as well. The rear rotors, calipers, parking brake shoes, and all brake hardware were replaced at the same time, and the brake system flushed out with new fluid. It is possible that some air may have been introduced into the brake system at the master cylinder at that time.

When the car was driven (after having sat for about nine months before this work was done), the ABS brake system operated right at the end of almost every stop. (It felt and sounded like you were driving over a washboard.) The ABS light does not illuminate when this happens or at any other time (except for the short time when the system performs its check at each start-up). There was no problem with the ABS brake system before the axle failure. It had previously activated only on snowy or slick roads when appropriate.

Suspecting that the left rear wheel speed sensor may have been damaged by contact with the exciter ring on the worn axle shaft, it was replaced with a used one from another '97 Crown Vic. The condition definitely improved, but the ABS system still activated inappropriately occasionally (maybe once every twenty or so stops). A new wheel speed sensor was put on the left rear, and the condition is now as bad as it was right after the car was first placed back in service.

Other work done at the same time the axle shafts were replaced:

All four shock absorbers were replaced. (The rear ones were fun!)
All tie rod ends and the idler arm were replaced.
Transmission and torque converted were drained.
Transmission fluid and filter were replaced.
Transmission shifter cable was replaced.
Engine oil and filter were changed.

The check engine light is not illuminated, and no engine codes are stored. I do not have the ability to check for any stored ABS brake codes.
Show More
Show Less
Ask Your Own Ford Question
Answered in 22 minutes by:
3/23/2011
Ironmike
Ironmike, Ford Technician
Category: Ford
Satisfied Customers: 3,388
Experience: 30 years ASE Master tech L1 . Ford master
Verified

greetings,

I would check the connectors for the sensors especially the front. There is a bulletin for bad connections causing a false abs conditions. You might try to disconnect them one by one and pinch the pins(to make them fit tight) and add dielectric grease)

Since you do not have a scanner to watch the wheel signals from the sensors this might be the best try. You could even ohm the connectors, back probe them and see if there is high resistance(you will need to disconnect the ebcm to isloate the circuit)

let me know what you find

Ask Your Own Ford Question
Customer reply replied 6 years ago
Does "ecbm" (in your answer) stand for electronic brake control module? Where is that located? Is it on the ABS controller? Which pins go to which wheel sensors? What should the resistance be for the sensors? Should the resistance be the same for each one? (I do have a digital ohmmeter.) I'm assuming that since changing out the left rear sensor makes the situation change that the problem is located there. If I can definitely pinpoint the problem to one or more sensor connections, I'll clip the durn connectors off and solder the wires.
they do not give a spec but I would say more than 5 ohms is too much. The ebcm is the abs module. I will get the schematics in a sec
Ask Your Own Ford Question

graphic

Anti-Lock Brake Module is located at the LH front of the vehicle, on front of the upper radiator support.

Ask Your Own Ford Question
Customer reply replied 6 years ago
I just probed the two used rear brake sensors with my digital multimeter. They're the ones I have off the cars. (I have two '97 Crown Vics--just alike.) One was 1103 ohms; the other was 1097 ohms--essentially identical. That doesn't necessarily mean that either one is good or bad, or that the connectors are making good contact, but the resistance is the same for each of them.

Do you know of a reasonably priced brake scanner? I don't mind spending two or three hundred bucks for one, but I can't justify $2500 or up for a Snap-On or equivalent.
I meant ohm the connector(back probed), not the sensor. Scanners that show abs data are not cheap. I will see if I can find an ohm spec for the sensors. We usually just make sure the circuits are good and watch the sensors on a scanner.
Ask Your Own Ford Question
Customer reply replied 6 years ago
OK. That helps. Thanks, Ironmike.

I have some more problems to sort out with this car. Like the cruise control doesn't work, but that's for another day. How do I ask for you in the future?

Bob
I am not sure what that side of the site looks like. You can keep this question open as long as we keep communicating within 24 hours. There should be a request choice on the question .
Ask Your Own Ford Question
abs sensors should have resistance between 800 and 1400 ohms
Ironmike
Ironmike, Ford Technician
Category: Ford
Satisfied Customers: 3,388
Experience: 30 years ASE Master tech L1 . Ford master
Verified
Ironmike and 87 other Ford Specialists are ready to help you
Ask your own question now
Ask Ironmike Your Own Question
Ironmike
Ironmike
Ironmike, Ford Technician
Category: Ford
Satisfied Customers: 3,388
3,388 Satisfied Customers
Experience: 30 years ASE Master tech L1 . Ford master

Ironmike is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

AlvinC answered a question about my Ford truck that only someone with an in-depth knowledge of his subject would have known what was going on.

Rich DUSA

Because of your expertise, you armed me with enough ammunition to win the battle with the dealer. They are installing a fuel filter and fuel pump at no charge to me.

MollyUSA

I needed help with my car on Saturday morning....got a response in 5 minutes, and it was the perfect solution. Thanks again to your service.

Jason V.Kirkland, WA

I do know, after going though this with JustAnswer, that I can somewhat trust my mechanic but I will always contact you prior to going there.

BRNew Jersey

I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry.

Stephanie PElm City, NC

used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future.

David L.Richmond, TX

9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much.

PhilMarysville, CA

< Previous | Next >

Meet the Experts:

Ron

Ron

ASE Certified Technician

24,320 satisfied customers

23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs

Chris (aka- Moose)

Chris (aka- Moose)

Technician

28,139 satisfied customers

16 years experience

John Mc

John Mc

Ford Technician

5,495 satisfied customers

19 years Ford Lincoln Mercury experience

Chuck

Chuck

ASE Certified Technician

1,685 satisfied customers

33 Years Experience,Ford Senior Master,ASE Master,L1 Advanced Engine Performance

Cam

Cam

Journeyman Automotive Technician

10 satisfied customers

GM Grand Master Technician 2007. 14 years Automotive experience.

Richard

Richard

ASE Certified Technician

1,524 satisfied customers

12 years at a Ford Lincoln/Mercury and Jaguar dealer as a technician and shop foreman.

Mike V.

Mike V.

Auto Service Technician

1,380 satisfied customers

25 years experience on all makes and models, Licensed NYS Inspector.

< Previous | Next >

Related Ford Questions
The cruise control doesn't work. A v8 and i dont know which
The cruise control doesn't work JA: Have you checked the fuse? What size is your engine? Customer: A v8 and i dont know which fuse it is JA: What is the model/year of your Ford? Customer: 2005 f150 JA… read more
David Craig
David Craig
OWNER/MECHANIC
Associates
4,420 satisfied customers
I replaced the cruise control switch on my 2000 explorer and
I replaced the cruise control switch on my 2000 explorer and all I get is the flashing green light . The cruise control does not work. … read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
28,139 satisfied customers
Cruise control stopped working. Checked brake pressure
Cruise control stopped working. Checked brake pressure switch, clutch engagement switch, brake pedal switch, and brake lights. Horn works. Checked connections coming from steering wheel and plugs are … read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
28,139 satisfied customers
I need to change the cruise control module on the bottom of
I need to change the cruise control module on the bottom of master cylinder on my Ford f350 … read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
28,139 satisfied customers
Cruise control is not working. No I did not, it is Eddie
No I did not, it is Eddie Bower 2002, 6 Cylinder. I think it is 4.0 liters … read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
24,320 satisfied customers
Need a fuse panel diagram. Cruise control inoperative abs
Need a fuse panel diagram JA: Okay, I'll connect you to the mechanic to go over that information regarding your Ford. Before I do, is there anything else you want him to know? Customer: Cruise control… read more
Cesar Jimenez
Cesar Jimenez
Owner/CEO
Vocational, Technical or Trade School
106 satisfied customers
I have a 2004 f350 diesel and the cruise control stopped
Hi I have a 2004 f350 diesel and the cruise control stopped working after hitting a deer but there was no damage to the vehicle at all! I checked all fuses and I replaced the switch on the master cyli… read more
Edward Clayton
Edward Clayton
Associate Degree
1,033 satisfied customers
The buttons for my cruise control have broken off How much
The buttons for my cruise control have broken off How much to replace them … read more
Eric
Eric
Retired
N/A
14,436 satisfied customers
How do you remove and replace cruise control buttons on 2005
Hello how do you remove and replace cruise control buttons on 2005 excursion with leather steering wheel, have removed airbag and pulled wheel but don't see how to replace button module. after studyin… read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
28,139 satisfied customers
My 2000 ford excursion's cruise control stopped working
my 2000 ford excursion's cruise control stopped working while my husband was driving. … read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
24,320 satisfied customers
Cruise control stopped working. Could it be a fuse? Control
Cruise control stopped working. Could it be a fuse? Control buttons on steeri … read more
Shawn Few
Shawn Few
AS
70 satisfied customers
Ron - The cruise control will not engage when activate nor
Ron - The cruise control will not engage when activate nor will the cruise light come on in the dash. This car only has 49,000 miles on it, was driven by older people who probably never used the cruis… read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
24,320 satisfied customers
Cruise control does not work on 2010 ford f-150.need
cruise control does not work on 2010 ford f-150.need solution … read more
Todd M
Todd M
Owner
ASE Certification
1,487 satisfied customers
My Cruise Control won't engage. When I press the SET button,
My Cruise Control won't engage. When I press the SET button, the dash light flashses and it won't engage. For awhile I could tap my brakes a couple times and then it would work. I just replaced the br… read more
Steve W
Steve W
Line Technician
Vocational, Technical or Trade Scho
1,968 satisfied customers
Cruise control not working 2004 ford expedition. 5.4.
cruise control not working 2004 ford expedition JA: Have you checked the fuse? What size is your engine? Customer: yes 5.4 JA: Are you fixing your Expedition yourself? What have you tried so far? Cust… read more
Michael Solis
Michael Solis
363 satisfied customers
2002 f250 super duty V10 cruise control stopped working. did
2002 f250 super duty V10 cruise control stopped working. did self test. flash entering diagnostic, flash depressing on switch....no flashes after that. Problem???? I'm not a mechanic. … read more
Jaybird61
Jaybird61
Master Automotive Mechanic
2,238 satisfied customers
2007 Territory cruise control not working, Engine 4litre
Engine 4litre petrol Can't find fuse ID in manual or on car … read more
Gary
Gary
Senior Technician
Vocational, Technical or Trade School
59 satisfied customers
No cruise control. Trying to locate the brake pressure
No cruise control. Trying to locate the brake pressure switch so I can diagnose it. … read more
Jaybird61
Jaybird61
Master Automotive Mechanic
2,238 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x