Ford

Have Ford Questions? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Ford
This answer was rated:

1994 Ford Ranger: Truck snatches and the check engine light goes out

1994 Ford Ranger 4.0 with...
1994 Ford Ranger 4.0 with the check engine light on. Truck snatches and the check engine light goes out. Also, battery light is on, but charging system is checking out fine. Just replaced the lower intake manifold gasket due to leak.
Show More
Show Less
Ask Your Own Ford Question
Answered in 14 minutes by:
11/1/2009
Ford expert
Ford expert, ASE Certified Technician
Category: Ford
Satisfied Customers: 10,370
Experience: 30 yrs,experience shop owner,
Verified
WHAT IS THE CODE IN THE COMPUTER WHEN THE CK ENGINE LIGHT IS ON
Ask Your Own Ford Question
Customer reply replied 8 years ago
512 and 998

OK HERE IS A TEST TO DO FOR THE CODE57

 

Codes:57, 341
Problem:Octane adjust shorting bar has been removed.
Test & Fix:Code 57 or 341 (on vehicles with 3 digit codes) is an informational code indicating that the octane adjust shorting bar has been removed. This shorting bar looks like the SPOUT (timing) connector and is located in the harness, usually near the EEC-IV self-test connector. It was placed in the system by the manufacturer in order to provide capability for a slight adjustment of the ignition timing. If it is removed, the PCM provides about 3 degrees less timing advance under conditions where spark knock is likely to occur.

 

HERE IS ANOTHER COMMON TROUBLE THAT MAY CAUSE THE PROBLEMS YOU HAVE

Tests/Procedures:1. Check for battery voltage on the Red wire at the MAF sensor.

2. If OK, with the MAF sensor plugged in, check for good grounds on the Black (BK) wire and the Tan/Light Blue (T/LB) wires.

3. If OK, check the Light Blue/Red (LB/R) wire that goes to pin 14 of the Powertrain Control Module (PCM) for shorts or open circuit.

4. If OK, replace the MAF sensor.
Potential Causes:Harness
Defective Mass Air Flow (MAF) Sensor
Pigtail - Defective MAF sensor pigtail connector.
Tech Tips:Ford has had problems with the MAF sensor connector

 

 

 

Ask Your Own Ford Question
Customer reply replied 8 years ago

Had trouble with MAP Sensor before and replaced both sensor and pigtail. Engine runs fine but has idle that goes up and down. Check engine light will go out while driving. Truck snatches at that time like going into another gear.

IS THAT OCTANE SHORTING BAR IN PLACE?
Ask Your Own Ford Question
Customer reply replied 8 years ago
Yes it's in place.

well i hate to say it but with all the different codes you have and all the syptoms , it seems you have a bad pcm

the idle fluctuating up and down is very likley a bad pcm

Ford expert
Ford expert, ASE Certified Technician
Category: Ford
Satisfied Customers: 10,370
Experience: 30 yrs,experience shop owner,
Verified
Ford expert and 87 other Ford Specialists are ready to help you
Ask your own question now
Customer reply replied 8 years ago
Ok will continue to check it out. Thanks so much for answering me.
your welcome
Ask Your Own Ford Question
Customer reply replied 7 years ago
Sean just letting you know my issue with my 1994 Ford Ranger ended up being the computer. We had to replace the computer and the Mass air sensor.
Very good if there's anything else that I can do for you just let me know thank you
Ask Your Own Ford Question
Ask Ford expert Your Own Question
Ford expert
Ford expert
Ford expert, ASE Certified Technician
Category: Ford
Satisfied Customers: 10,370
10,370 Satisfied Customers
Experience: 30 yrs,experience shop owner,

Ford expert 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
Swapped the engine from a 1999 windstar to a 2002 windstar
Swapped the engine from a 1999 windstar to a 2002 windstar now it does not crank engine turns over when I short it at the signal and power supply … read more
Kenny Z
Kenny Z
Ford Senior Master Technician
High School or GED
16 satisfied customers
Changed engine in ford escape hybrid 06. Got new engine
changed engine in ford escape hybrid 06. Got new engine started, but get code 2104, some sort of idle limp mode. Shuts off after 2 minutes … read more
APenland
APenland
Ford Senior Master Technician
Associate in Industrial Management
3,186 satisfied customers
The engine will not turn over. No spark, no check engine, no
I followed the procedure in the handbook -- 3 trials - -then tried the flooded engine procedure (although I did not see how that could have happened). The electronics are working, it just won't crank … read more
Matt
Matt
Engineer
Bachelor\u0027s Degree
5 satisfied customers
2001 ford e150 w/4.2 engine. Can I remove the engine and
2001 ford e150 w/4.2 engine. Can I remove the engine and tranny as one unit through the front- the engine is sized so I can't get to the torque converter bolts … read more
roy
roy
Associate Degree
3 satisfied customers
The engine is not turning, it has the engine check light,
the engine is not turning, it has the engine check light, battery, and oil light on. … read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
My ford f150 engine light is blinking. The service engine
the service engine soon light flashes and then remain on … read more
kalamykid
kalamykid
Pactor automotive
Vocational, Technical or Trade Scho
97 satisfied customers
Engine stalls below 1000 rpm. No engine light, stalls going
no engine light, stalls going into reverse and at stop light … read more
Pete
Pete
Mechanic
Construction, Plant Fitter
62 satisfied customers
When I first start the engine and start driving the engine
when I first start the engine and start driving the engine comes up to temp and then shortly after reaching that temp will start overheating. I turn on heater in the cab which will bring engine temp b… read more
Peter Bagley
Peter Bagley
master technition
Vocational, Technical or Trade School
1,015 satisfied customers
I have had an engine knock in the lower part of my engine
I have had an engine knock in the lower part of my engine for last couple month, after running on low oil. after replacing oil knock got better, but has come back and seems to increasingly get worse. … read more
Mike V.
Mike V.
Auto Service Technician
High School or GED
1,380 satisfied customers
There's a humming or groaning noise from the engine
There's a humming or groaning noise from the engine compartment, it varies in intensity day to day, but becomes higher pitched as the engine speed increases. It does not seem to change as the steering… read more
Mechanic01
Mechanic01
1,716 satisfied customers
Engine malfunction warning light comes on and engine losses
engine malfunction amber warning light comes on and engine losses power .engine restarts after about five minuets … read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
4,442 satisfied customers
It is backfiring through the. My engine is backfiring
Yes I am. I turned the engine by hand to 0 degrees on the crank and I took the distributor cap off and adjusted it to where the 1 cylinder plug is above the rotor and it backfires through the carburetor … read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
24,320 satisfied customers
Car runs well, engine purrs, so don't think it's an engine
Car runs well, engine purrs, so don't think it's an engine efficiency issue. Odometer typically always showed approximately 390-410 miles to empty when gas tank was filled up. All of a sudden, it only… read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
28,139 satisfied customers
My engine is a 70 302, was a 2bbl carb, now a 4bbl. engine
my engine is a 70 302, was a 2bbl carb, now a 4bbl. engine fires great, but after driving awhile, it wants to stall at idle slow braked … read more
heavy_chevy_396
heavy_chevy_396
Vocational, Technical or Trade Scho
2,518 satisfied customers
Service engine light just came on and engine stalls at an
Service engine light just came on and engine stalls at an idle … read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 satisfied customers
2006 f 350 have to rev engine high to keep engine from
2006 f 350 have to rev engine high to keep engine from stalling when engaging clutch. Clutch does not engage smooth … read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
28,139 satisfied customers
2012 FordFusion - start engine in park horrible jet engine
2012 FordFusion - start engine in park horrible jet engine roar starts I'm so scared I turn off car. Checked at ford dealer. No history found. I can't drive it from my terror. Husband has driven it wi… read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
Coolant leaks at rear of engine. Engine not run for last
coolant leaks at rear of engine. Engine not run for last several days so no pressure in engine. … read more
heavy_chevy_396
heavy_chevy_396
Vocational, Technical or Trade Scho
2,518 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