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

Asked by 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

56,465

I suspect that you have a plugged up catalytic converter.

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.

56,465

You may have a bad Oxygen sensor.

4,995

Mine did that and it was a coil pack

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

Add photo

Related Questions

Expedition

Looking for a Used Expedition in your area?

CarGurus has 25,325 nationwide Expedition listings starting at $1,750.

ZIP:

Search Ford Expedition Questions

Ford Expedition Experts

#1 T_S_T
T_S_T
Reputation 1,860
#2 Larry Sturgis
Larry Sturgis
Reputation 1,270
#3 lightGear
lightGear
Reputation 1,010
View All

Related Models For Sale

Used Chevrolet Tahoe
559 Great Deals out of 27,480 listings starting at $999
Used Ford Explorer
812 Great Deals out of 74,902 listings starting at $750
Used Chevrolet Suburban
335 Great Deals out of 18,899 listings starting at $2,295
Used Lincoln Navigator
107 Great Deals out of 5,720 listings starting at $1,499
Used Ford F-150
2,233 Great Deals out of 209,421 listings starting at $1,499
Used GMC Yukon
363 Great Deals out of 17,035 listings starting at $2,500
Used GMC Yukon XL
251 Great Deals out of 11,895 listings starting at $1,999
Used Cadillac Escalade
245 Great Deals out of 10,834 listings starting at $3,000
Used Ford Excursion
8 Great Deals out of 735 listings starting at $3,995
Used Dodge Durango
245 Great Deals out of 22,834 listings starting at $1,500
Used Toyota 4Runner
253 Great Deals out of 20,499 listings starting at $1,995

Used Cars For Sale

2017 Ford Expedition For Sale
11 Great Deals out of 14,404 listings starting at $23,116
2016 Ford Expedition For Sale
115 Great Deals out of 2,428 listings starting at $24,977
2015 Ford Expedition For Sale
18 Great Deals out of 862 listings starting at $23,488
2014 Ford Expedition For Sale
34 Great Deals out of 777 listings starting at $17,950