1999 Ford Expedition EB 4WD 5.4L Sputter Shutter on Load Heavy Acceleration

10

Asked by pointaus Nov 03, 2016 at 11:07 AM about the 1999 Ford Expedition 4 Dr Eddie Bauer 4WD SUV

Question type: Maintenance & Repair

1999 Ford Expedition EB 4WD 5.4L 200K sputters and shutters under load
/ heavy acceleration, low or high RPM's. Normal driving 1/3 peddle and
under 2K RPM's NO sputter or shutter. Initially told misfire Bank 2
suggestion was to replace COP's and injector O-rings. Replaced all spark
plugs, COP's and injectors. Starts instantaneously now and more
responsive but still shutters and sputters under load. Suggestion to replace
TPS, MAF and fuel filter since it had 200K on it and nothing had been
replaced since new so I replaced all. Still shutters and sputters but now
notice it runs a little rough at idle and the exhaust smells weird not like gas
just something I've never smelled before. Suggestion of possible vac leak,
have sprayed carb cleaner, brake cleaner and starter fluid all around can't
fine anything, Starts immediately cold or hot, cold IAC has it at 980 RPM's
then settles to 600 RPM's. Never surges. Drove around for about an hour
trying to get it to throw a code P1132 and P1152, Sensor 1 for bank 1 & 2 ,
LACK OF H2OS11-NOT SWITCHING - RICH assuming this means LEAN
(no O2) condition from what i've read. Suggestion was test the fuel
pressure and regulator. 30 psi at the rail, 35 psi with new fuel filter engine
running. Removed vac hose from regulator jumps to 40 psi. Engine off,
ignition off, psi drops to 0 in a couple of minutes. Never holds pressure
once off. Q: shouldn't line hold pressure within 5psi when pump is off? Also,
Is the fuel pump working just not enough when fuel demand increases.

5 Answers

I suspect that you have a plugged up catalytic converter.

1 people found this helpful.
10

Would the plugged cat cause shutter and sputter condition or throw the code? This is the first time since all of the work has been done that the P1132 and 1152 showed up. I will perform vac and temp test today.

1 people found this helpful.
15,895

Mine did that and it was a coil pack

1 people found this helpful.
10

Thanks for all of the responses. Picked up a infrared thermometer to test the cat temp and I have ordered a Waekon 76562 Coil Over Plug Quick Probe with Variable Sensitivity to try and test the COP's since there is no live data from the PCM for cylinder specific misfires and no codes / cel has never flashed. Also, I am testing both upstream HO2's to rule them out using this http://troubleshootmyvehicle.com/ford/4.6L-5.4L/how-to-test-the- oxygen-sensors-1. I'll report results once complete. Thx

Your Answer:

Expedition

Looking for a Used Expedition in your area?

CarGurus has 812 nationwide Expedition listings starting at $7,888.

Postal Code:

CarGurus Experts

  • #1
    Larry Sturgis
    Reputation
    5,300
  • #2
    T_S_T
    Reputation
    4,560
  • #3
    Gene Arnett
    Reputation
    2,730
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Tahoe
18 Great Deals out of 745 listings starting at $5,995
Used Chevrolet Suburban
8 Great Deals out of 416 listings starting at $12,000
Used Lincoln Navigator
9 Great Deals out of 198 listings starting at $9,869
Used Ford Explorer
81 Great Deals out of 2,024 listings starting at $2,999
Used GMC Yukon
26 Great Deals out of 754 listings starting at $4,995
Used Ford F-150
299 Great Deals out of 15,725 listings starting at $1,712
Used GMC Yukon XL
20 Great Deals out of 557 listings starting at $12,950
Used Cadillac Escalade
21 Great Deals out of 408 listings starting at $6,995
Used Toyota 4Runner
13 Great Deals out of 337 listings starting at $9,900
Used Ford F-250 Super Duty
27 Great Deals out of 1,201 listings starting at $8,995
Used Dodge Durango
38 Great Deals out of 2,318 listings starting at $7,995
Used Ford Excursion
2 listings

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.