1999 f250 sd v10. Getting po172 and po174 fuel trims out of wack. I have replaced iac tps cps fuel pump hoses the seemed bad no air leaks that I could find. Clean mas. Also tranney dot shift right

120

Asked by Joe Nov 16, 2013 at 09:54 PM about the 1999 Ford F-250 Super Duty XLT 4WD Crew Cab LB

Question type: Maintenance & Repair

I ordered a new mass I don't know what the maf should read at idle.  What else would
cause the fuel trims to be off. New o2 sensors.    Seems to run better with the mass low
unpluged. At least the bank 1 and 2 sensor 1 will switch rich lean.  When pluged in is
where the freeze.  And get 172 and 174 codes.  And during the koer test I get the iac
malfunction. Been replaced 2 times .

44,685

tuff4x4 answered 10 years ago

Rich on both banks. Coolant temp.sensor or fuel pressure regulator.

1 people found this helpful.

Mark helpful

44,685

tuff4x4 answered 10 years ago

Rear speed sensor in rear end or transmission filter dropped down.Change filter and fluid drain torque converter.

Mark helpful

Your Answer:

1999 f250 sd v10. Getting po172 and po174 fuel trims out of wack. I have replaced iac tps cps fuel pump hoses the seemed bad no air leaks that I could find. Clean mas. Also tranney dot shift right 2 Answers

I ordered a new mass I don't know what the maf should read at idle. What else would cause the fuel trims to be off. New o2 sensors. Seems to run better with the mass low unpluged. At least the b...

1999 Ford F-250 Super Duty XLT 4WD Crew Cab LB

-

Maintenance & Repair
I have a 2004 F250 gas. It starts with starting fluid in the air cleaner and shuts off right away. It will not start without it. I replaced the fuel relay fuse 1 Answer

I have a 2004 F250 gas. It starts with starting fluid in the air cleaner and shuts off right away. It will not start without it. I replaced the fuel relay fuse and the safety shut off switch on the pa...

2004 Ford F-250 Super Duty XL LB RWD

-

Maintenance & Repair
I have a 2002 f250 7.3 diesel. I have a fuel leak somewhere around the fuel filter case. Is there a common fuel leak problem with one of the metal hoses associated with the fuel. 2 Answers

I get a puddling of fuel on the manifold by the fuel filter unit. There are several metal hoses that connect but not sure just which one it might be. Cant really see to much stuff in the way. Is the...

2002 Ford F-250 Super Duty XLT Extended Cab SB

-

Maintenance & Repair
Getting a Ford Fuel pump out of the tank 5 Answers

2003 Ford F250, 5.4L engine: I have successfully removed the plastic, black collar off of the fuel pump access hole. Now, I can see the pump housing, but it is attached to the bottom, somehow. I do...

2003 Ford F-250 Super Duty

-

Maintenance & Repair
2001 f250 5.4 as of tonight it started cutting out or to me acting like fuel starvation under load. This gets worse in just minutes, but if I shut off the ignition and restart immediately it has full 3 Answers

2001 f250 5.4 as of tonight it started cutting out or to me acting like fuel starvation under load. This gets worse in just minutes, but if I shut off the ignition and restart immediately it has fu...

Ford F-250 Super Duty

-

Maintenance & Repair

Looking for a Used F-250 Super Duty in your area?

CarGurus has 42,029 nationwide F-250 Super Duty listings starting at $2,000.

Own this car?

Share your experience with others.

1999 Ford F-250 Super Duty

Write a car review

Review another car

Used Ford F-350 Super Duty

941 Great Deals out of 22,502 listings starting at $4,700

Used Ford F-150

6,050 Great Deals out of 131,250 listings starting at $900

Used Chevrolet Silverado 2500HD

1,069 Great Deals out of 30,535 listings starting at $3,800

Used Ford F-250

226 listings starting at $7,495

Used Dodge RAM 2500

69 Great Deals out of 1,080 listings starting at $3,500

Used Chevrolet Silverado 1500

4,153 Great Deals out of 130,995 listings starting at $1,000

Used Toyota Tundra

1,075 Great Deals out of 32,148 listings starting at $2,650

Used GMC Sierra 1500

1,827 Great Deals out of 66,006 listings starting at $875

Used Ford F-450 Super Duty

121 Great Deals out of 2,640 listings starting at $14,795

Used Ford Mustang

923 Great Deals out of 22,585 listings starting at $783

2024 Ford F-250 Super Duty For Sale

15 Great Deals out of 23,459 listings starting at $40,040

2023 Ford F-250 Super Duty For Sale

77 Great Deals out of 3,833 listings starting at $37,450

2022 Ford F-250 Super Duty For Sale

254 Great Deals out of 2,716 listings starting at $25,600

2021 Ford F-250 Super Duty For Sale

134 Great Deals out of 1,384 listings starting at $18,999

2020 Ford F-250 Super Duty For Sale

116 Great Deals out of 1,247 listings starting at $18,495

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.

1999 f250 sd v10. Getting po172 and po174 fuel trims out of wack. I have replaced iac tps cps fuel pump hoses the seemed bad no air leaks that I could find. Clean mas. Also tranney dot shift right

2 Answers

Your Answer:

Looking for a Used F-250 Super Duty in your area?

Own this car?

Share your experience with others.

Shortcuts

Search Ford F-250 Super Duty Questions

CarGurus Experts

Know more, shop wisely

Related Models For Sale

Used Cars for Sale

1999 f250 sd v10. Getting po172 and po174 fuel trims out of wack. I have replaced iac tps cps fuel pump hoses the seemed bad no air leaks that I could find. Clean mas. Also tranney dot shift right

2 Answers

Your Answer:

Related Questions