1990 Ford F-250 7.5 L, loses power

Asked by Guru9H2ZGQ Nov 21, 2021 at 07:56 PM about the 1990 Ford F-250 2 Dr XLT Lariat Standard Cab LB

Question type: Maintenance & Repair

I have a 1990 Ford F-250 7.5 liter (32k miles) gas engine that loses power
going up hill with a load. Around town on level streets, no problem, seems to
run great. I have researched the issue on different sites. Some say it’s the fuel
filter, other the fuel regulator. Where do you think I should start to resolve
issue? Thanks

3 Answers

310,565

Fuel filter is the first choice, then a fuel pressure and flow test, next would be an exhaust system pressure test, these things were known to melt down catalytic converters.

1 people found this helpful.
500

Hello, here is where I think you should start checking/testing and replacing as needed: incorrectly calibrated/malfunctioning Spark-plugs. Faulty Ignition Coil, Ignition coil-to-Spark-plugs wire, defective Injector(s), A/T Low fluid level, A/T torque converter, Slipping Clutch, Blocked/obstructed fuel filter, EVAP System malfunction, Cylinder compression pressures Low/Uneven. Thank you!

Your Answer:

F-250

Looking for a Used F-250 in your area?

CarGurus has 4 nationwide F-250 listings and the tools to find you a great deal.

Postal Code:

CarGurus Experts

  • #1
    Gene Arnett
    Reputation
    2,070
  • #2
    MikeSt
    Reputation
    1,000
  • #3
    MrRatchet42
    Reputation
    810
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Ford F-150
309 Great Deals out of 13,933 listings starting at $1,712
Used GMC Sierra 1500
128 Great Deals out of 6,516 listings starting at $3,975
Used Ford Mustang
58 Great Deals out of 1,366 listings starting at $4,995

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.