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

47,565

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.

47,565

You may have a bad Oxygen sensor.

4,825

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 24,741 nationwide Expedition listings starting at $1,999.

ZIP:

Search Ford Expedition Questions

Ford Expedition Experts

#1 T_S_T
T_S_T
Reputation 1,790
#2 Larry Sturgis
Larry Sturgis
Reputation 1,240
#3 lightGear
lightGear
Reputation 1,010
View All

Related Models For Sale

Used Chevrolet Tahoe
775 Great Deals out of 28,451 listings starting at $1,500
Used Ford Explorer
936 Great Deals out of 73,994 listings starting at $750
Used Chevrolet Suburban
462 Great Deals out of 18,781 listings starting at $1,399
Used Lincoln Navigator
118 Great Deals out of 5,623 listings starting at $1,299
Used Ford F-150
2,700 Great Deals out of 212,349 listings starting at $1,000
Used GMC Yukon
519 Great Deals out of 17,127 listings starting at $1,799
Used GMC Yukon XL
359 Great Deals out of 12,480 listings starting at $1,995
Used Cadillac Escalade
308 Great Deals out of 10,692 listings starting at $1,900
Used Ford Excursion
17 Great Deals out of 790 listings starting at $1,900
Used Dodge Durango
299 Great Deals out of 24,117 listings starting at $1,500
Used Ford F-250 Super Duty
395 Great Deals out of 45,079 listings starting at $2,000

Used Cars For Sale

2017 Ford Expedition For Sale
3 Great Deals out of 12,035 listings starting at $31,990
2016 Ford Expedition For Sale
70 Great Deals out of 2,106 listings starting at $26,901
2015 Ford Expedition For Sale
37 Great Deals out of 1,262 listings starting at $22,711
2014 Ford Expedition For Sale
35 Great Deals out of 831 listings starting at $15,995
2013 Ford Expedition For Sale
71 Great Deals out of 994 listings starting at $14,988