i have a 1988 for f150 and it has great power up until 40 mph. after that it sharply goes down and i speed up slowly. this is a problem especially when i am towing or hauling anything and trying to get up to highway speeds. what can i do to change this. it is a 5.0 V8 with a 5 speed manual tranny

Asked by Jul 11, 2012 at 08:49 AM about the 1988 Ford F-350

Question type: Maintenance & Repair

5 Answers

7,515

Could be a restricted/plugged fuel filter.

425

I would say some restriction in fuel flow either filter, injectors, or fuel pump.

7,515

I agree on the fuel flow issue. The reason I stated fuel filter is because it's the cheapest to replace, and part of regular maintenance. A good place to start from.

425

And I agree, start with the least expensive repair first.

Make sure the EGR is operational and not half on the toilet seat!

Your Answer

Add photo

Related Questions

F-350

Looking for a Used F-350 in your area?

CarGurus has 309 nationwide F-350 listings starting at $3,495.

ZIP:

Search Ford F-350 Questions

Ford F-350 Experts

#1 tennisshoes
tennisshoes
Reputation 120
#1 BoholMark
BoholMark
Reputation 120
#3 Alexander Curtis
Alexander Curtis
Reputation 80
View All

Related Models For Sale

Used Ford F-250
469 listings starting at $2,000
Used Ford F-150
2,059 Great Deals out of 207,339 listings starting at $1,499

Used Cars For Sale

1996 Ford F-350 For Sale
35 listings starting at $5,000
1995 Ford F-350 For Sale
50 listings starting at $3,495
1994 Ford F-350 For Sale
26 listings starting at $4,950

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.