1993 f150 power issues

Asked by Mar 06, 2017 at 11:50 PM about the 1993 Ford F-150 XLT Extended Cab SB

Question type: Maintenance & Repair

1993 5.0 f150 rwd. Longer you drive the more
power is lost, sounds like it has a cam, bad
exhaust odor, fuel pump never shuts off. Replaced
egr valve,IAC, catalytic converter, exhaust
manifold, air pipes, fuel pump, fuel filter, Ecm, fuel
pump relay, changed oil, plugs and wires, air filter,
cleaned throttle body.

9 Answers

75,465

First change the fuel filter and see what it does. Otherwise the fuel pump may not be putting out enough pressure. Fuel pressure would need to be checked.

I already changed fuel filter and pump, I don't have a fuel pressure gauge( lost) and won't be able to get one til next week. I do have a timing gun and will be checking the time today

75,465

Ahh then I don't think you have a fuel pressure issue. Check the catalytic converter. Drive the vehicle so it get warmed up, park in a dark area and look at the cat. It would have a orange glow to it if it is plugged up.

The catalytic converter exhaust manifold air pipes are all new, changed distributor cap and rotor and it fixed 70% of the problem just can't figure the rest out

75,465

Well the next thing to do is look at the EGR Valve system. Make sure the EGR Valve is working, take it off and clean the center pentle so it can close, make sure the diaphragm is good, and clean out the port for the EGR Valve.

I have already done the egr valve and solinoid, at certain constant speed on level surfaces it starts to shutter, also the muffler vibrates at idle

75,465

I forgot to tell you to check the timing.

Timing is good

75,465

Well then I would check the compression of the engine. May just be getting tired.

Your Answer

F-150

Looking for a Used F-150 in your area?

CarGurus has 212,952 nationwide F-150 listings starting at $1,295.

ZIP:

Ford F-150 Experts

  • #1
    OJ
    Reputation
    9,250
  • #2
    dandyoun
    Reputation
    4,630
  • #3
    tennisshoes
    Reputation
    3,250
View All

Related Models For Sale

Used GMC Sierra 1500
1,156 Great Deals out of 65,790 listings starting at $1,750
Used Dodge Ram 1500
422 Great Deals out of 10,850 listings starting at $1,499
Used Ford Mustang
558 Great Deals out of 36,548 listings starting at $1,500
Used Ford F-250
429 listings starting at $2,995
Used Ford Explorer
1,085 Great Deals out of 70,934 listings starting at $1,500

Used Cars For Sale

2018 Ford F-150 For Sale
98,351 listings starting at $17,079
2017 Ford F-150 For Sale
153 Great Deals out of 40,683 listings starting at $17,990
2016 Ford F-150 For Sale
206 Great Deals out of 7,875 listings starting at $16,694
2015 Ford F-150 For Sale
436 Great Deals out of 11,662 listings starting at $11,990
2014 Ford F-150 For Sale
591 Great Deals out of 14,979 listings starting at $9,990

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.