fairly significant
Typical Repair Cost:
Average Mileage:
116,153 miles
Total Complaints:
6 complaints

Most Common Solutions:

  1. not sure (4 reports)
  2. do nothing (1 reports)
  3. replace air filter and clean mass air flow sensor (1 reports)
1999 Ford Explorer engine problems

engine problem

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1999 Ford Explorer Owner Comments

problem #6

Dec 012012

Explorer Limited V6

  • Automatic transmission
  • 165,392 miles


Me and my husband just got this suv, bought it used and were both not to sure what it could be, The Check Engine light comes on for a while and then goes off for a while. The radio lights do the same exact thing they come on and then go right back off so Hell what to do!!!!

- , Henderson, KY, USA

problem #5

Mar 092009

Explorer XLS V-6-245cl 4.ol

  • Automatic transmission
  • 112,000 miles

Engine light came on, mechanic replaced 15718 Oxygen sensor-banktwo-sensor two, 7 months later, engine light came on again, replaced spark plugs, wires, found #4 & #4 CYL was misfiring, replaced fuel injector, also Goodyear told me it had lean codes. March 2010, engine light came on again, replaced spark plugs again, replaced Synchronizer, July 9, 2010, engine light came on again, replaced cam sensor and the throttle body, Sept 9, 2010, check engine light on again, replaced ignition coil, cleaned

MAF, two weeks later replaced Mass Air Flow Sensor, drove it one week and the light is on again, I have spent over $1200 AND no one seems to know how ro fix this problem, the car now has 128,000 miles on it. Help?

- , Columbus, OH, US

problem #4

Jun 072010

Explorer XLT 4.0L

  • Automatic transmission
  • 129,000 miles

My check engine light came on so I went to O'Reilys to borrow their code checker. It said Bank 1 lean so I replaced the Bank 1 O2 sensor. I cleared the fault and all seemed OK for a few days, then the light came back on. I bought my own ODBII tester from Harbor Freight (<$50) and it said both Bank1 and Bank 2 lean. I checked with a couple of techs and they said this was common if the air filter was old and/or the Mass Air Flow sensor was dirty. I got a new air filter and cleaned the MAF sensor and the light hasn't come back on for two weeks so far.

If you are having this problem, I suggest checking the air filter and having the MAF sensor cleaned before going the expensive route of replacing the O2 sensors. NOTE: This only applies if BOTH banks are reporting a lean condition.

- , Castle Rock, CO, USA

problem #3

Dec 122008

Explorer Explorer V6

  • Automatic transmission
  • 156,000 miles


My 1999 Ford Explorer has valves that are blown. I had another engine put in it and the catalytic converters replaces. The engine they replaced it with also has blown valves. I am out $1500 and my car is still barely drivable...Ford needs to address these issues with all the faulty parts on Ford Explorers and PAY to fix them NOW!!!

- , Rockwall, TX, US

problem #2

Mar 172007

(reported on)

Explorer XLT V6

  • Automatic transmission
  • 48,527 miles

i have a 1999 ford explorer and the check engine keeps coming on. i had a tune up and still the lights comes on. i had them to say the spark plug was bad, may be a leak, gas filter and so on. now i think i want to do like others just let it stay on. the dealership in my area is so cunning its hard to say when they are telling the truth.

- , Hertford, NC, US

problem #1

Jan 122007

(reported on)

Explorer Eddie Bauer 3.0L V6

  • Automatic transmission
  • 86,000 miles

I've owned this car for 4 years and nearly the entire 4 years the Check Engine Light has been on. I've been told it's the O2 Sensors, the catalytic converter and a variety of other issues. I opt'd to do nothing and have put 50K miles on the car. I know a handleful of other folks who have the same issue with their Explorer.

- , Alexandria, VA, USA

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