Question about 1998 Ford Explorer

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Engine light is on, flashes when driving above 100 Km

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Stop by local parts store (Autozone,Advance, etc) and have them do a free fault code test. They can print out a list of faults and clear the codes

Posted on Jan 02, 2011

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Try to fix source of problem ASAP! A flashing CEL light means catalyst system is being harmed by excessive hydrocarbons that aren't being burned correctly by the engine. Common cause is usually a misfire in one of the engine cylinders, faulty MAF sensor or faulty ECT sensor.

Posted on Nov 20, 2014

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Ideas:
(1) buy an ODB-II code reader and use ti to ask your car's computer why it's lighting the check engine
light - OR borrow one from AutoZone tool loaner program to do the same.

(2) it might be a clogged Torque converter clutch solenoid valve, and while you could remove your
transmission oil pan to access this, its possible that a transmission fluid change will unclog it.
See also:
http://answers.edmunds.com/question-1998-Ford-Explorer-Check-engine-light-light-flashing-sometimes-55948.aspx

(3) the blinking check engine light means that the engine is misfiring - check your spark plug
wires (they may need to be replaced) and/or spark plugs, DIS (distributorless ignition
system) coil packs, etc. Distributor ignition system - all parts..

To get a better solution, you'll want to follow up with more info on your car:
(1) Type of ignition system: DIS (distributorless) or Distributor Ignition system?
(2) what model is your 1998 Explorer? choices are many ---
(a) 1998 Ford Explorer 2WD - available engines:
6-cylinder (VIN E) 4.0L EFI SOHC (found in 56% of 98 Explorer 2WD)
6-cylinder (VIN X) 4.0L EFI (found in 44% of 98 Explorer 2WD)
(b) 1998 Ford Explorer 4WD - available engines:
6-cylinder (VIN E) 4.0L EFI SOHC (found in 79% of 98 Explorer 4WD)
6-cylinder (VIN X) 4.0L EFI (found in 21% of 98 Explorer 4WD)
(c) 1998 Ford Explorer AWD (all wheel drive) - available engine:
8-cylinder (VIN P) 5.0L EFI (found in 100% of 98 Explorer AWD)

The engine code part of the VIN is the 8th digit (from total of 17 digits).

Posted on Jan 02, 2011

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SOURCE: the engin lamp is lighting

most likely plugs or wires (Do both at the same time best bet) Your engine has a certain load a certain speeds, if your ignition system (plugs + wires) arent up to snuff, they will misfire at certain speeds only. I would recomend it 1st, other than that there are a couple of things that do it, but that is most likely. Shop around for ignition parts dilligently, its a very cutthroat market and prices vary greatly, make sure you only buy platinum plugs or better.

Posted on Aug 16, 2009

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PROCEDURE 1
EVAPORATIVE EMISSION SYSTEM LEAK MONITOR
Inspection Conditions
Engine coolant temperature: 30°C (75°F) or less (The engine is stopped before the test drive is started).
Atmospheric temperature: 5 - 30°C (41 - 113°F).
Condition of A/T: Selector lever D range.
Fuel remained in fuel tank: 30 - 50% is recommended.
Time required: 16 minutes or less after started the engine.
Drive cycle pattern: One trip monitor (from start to ignition switch to "LOCK" (OFF) position. Well be completed while traveling with the following drive cycle pattern.
Test Procedure
Engine: start.
Accelerate until the vehicle speed is 89 km/h (55 mph) or more.
While keeping the accelerator pedal opening degree constant, keep the vehicle speed at 89 km/h (55 mph) or more and travel for 16 minutes.
Return the vehicle to the shop, then turn the ignition switch to "LOCK" (OFF) position.

PROCEDURE 2
FUEL TRIM MONITOR
Drive Cycle Pattern
Inspection Conditions
Engine coolant temperature: 100°C (212°F) or less.
Atmospheric temperature: -10 - 60°C (14 - 140°F).
Condition of A/T: Selector lever D range.
Time required: 30 minutes or more.
Drive cycle pattern: One trip monitor (from start to ignition switch to "LOCK" (OFF) position). Will be completed while traveling with the following drive cycle pattern.
Test Procedure
Engine: start.
Accelerate until the vehicle speed is 89 km/h (55 mph) or more.
While keeping the accelerator pedal opening degree constant, keep the vehicle speed at 89 km/h (55 mph) or more and travel for 30 minutes.
Return the vehicle to the shop, then turn the ignition switch to "LOCK" (OFF) position

PROCEDURE 3
CATALYTIC CONVERTER MONITOR
Drive Cycle Pattern
Inspection Conditions
Atmospheric temperature: -10°C (14°F) or more.
Condition of A/T: Selector lever D range.
Engine coolant temperature: Not set.
Time required: 16 minutes or more.
Drive cycle pattern: One trip monitor (from start to ignition switch to "LOCK" (OFF) position). Will be completed while traveling with the following drive cycle pattern.
Test Procedure
Engine: start.
Accelerate until the vehicle speed is 89 km/h (55 mph) or more.
Travel for 300 seconds or more while keeping the vehicle speed at 89 km/h (55 mph) or more.
Decelerate until the vehicle speed is within 80 km/h (50 mph) or less.
While traveling at 56 - 80 km/h (35 - 50 mph) for 10 minutes or more, fully close the throttle at least once in 2 minutes and decelerate for 10 seconds or more.
Do not repeat deceleration too often.
Vehicle speed may go below 56 km/h (35 mph) after the deceleration.
Stopping and braking are permitted. (If stopped or drive at 56 km/h (35 mph) or less for more than 5 minutes the monitoring may be stopped. In this case please restart monitoring from the beginning.)
After completing the above deceleration, bring the vehicle speed back to 56 - 80 km/h (35 - 50 mph) and keep it in the range until starting the deceleration again.
Repeat the above deceleration at least 5 times.
Return the vehicle to the shop, then turn the ignition switch to "LOCK" (OFF) position

PROCEDURE 4
HEATED OXYGEN SENSOR MONITOR
Drive Cycle Pattern
Inspection Conditions
Engine coolant temperature: 100°C (212°F) or more.
Atmospheric temperature: -10°C - 60°C (14 - 140°F) or more.
Condition of A/T: Selector lever D range.
Time required: 16 minutes or more.
Drive cycle pattern: One trip monitor (from start to ignition switch to "LOCK" (OFF) position). Will be completed while traveling with the following drive cycle pattern.
Test Procedure
Engine: start.
Accelerate until the vehicle speed is 56 - 80 km/h (35 - 50 mph).
While keeping the accelerator pedal opening degree constant, keep the vehicle speed at 56 - 80 km/h (35 - 50 mph) and travel for 16 minutes or more.
Stopping and braking during this operation are permitted. Keep the accelerator opening degree constant for 1 minute or more after each acceleration.
Return the vehicle to the shop, then turn the ignition switch to "LOCK" (OFF) position

PROCEDURE 5
EXHAUST GAS RECIRCULATION (EGR) SYSTEM MONITOR
Drive Cycle Pattern
Inspection Conditions
Engine coolant temperature: 100°C (212°F) or less.
Atmospheric temperature: 5 - 60°C (41 - 140°F).
A/C switch: OFF.
Condition of A/T: Selector lever D range.
Time required: 16 minutes or more.
Drive cycle pattern: One trip monitor (from start to ignition switch to "LOCK" (OFF) position). Will be completed while traveling with the following drive cycle pattern.
Test Procedure
Engine: start.
Accelerate until the vehicle speed is 56 - 80 km/h (35 - 50 mph).
While traveling 16 minutes or more at 56 - 80 km/h (35 - 50 mph) with engine speed 2,000 r/min or above, fully close the throttle at decelerate for 5 seconds or more until the engine speed reaches 1,000 r/min or under.
Do not repeat deceleration too often.
Stopping and braking are permitted (Rapid deceleration and sharp steering are not permitted).
After completing the deceleration, bring the vehicle speed back to 56 - 80 km/h (35 - 50 mph) and keep it in the range until starting the deceleration again.
Repeat the above deceleration at least 8 times by fully closing the throttle valve.
Return the vehicle to the shop, then turn the ignition switch to "LOCK" (OFF) position

PROCEDURE 6
OTHER MONITOR (Main Components, Sensors & Switches, Wire Breakage & Short Circuit)
Drive Cycle Pattern
Inspection Conditions
Engine coolant temperature:
100°C (212°F) or less (Except engine coolant temperature sensor monitoring).
30°C (86°F) or less (Engine coolant temperature sensor monitoring).
Atmospheric temperature:
5°C (41°F) or more (Except engine coolant temperature sensor monitoring).
-10°C (14°F) or less (Engine coolant temperature sensor monitoring).
Condition of A/T: Selector lever D range.
Time required: 21 minutes or more.
Drive cycle pattern: One trip monitor (from start to ignition switch to "LOCK" (OFF) position). Will be completed while traveling with the following drive cycle pattern.
Test Procedure
Engine: start
Accelerate until the vehicle speed is 56 km/h (35 mph) or more.
While keeping the accelerator pedal opening degree constant, keep the vehicle speed at 56 km/h (35 mph) or more and travel for 16 minutes or more.
Return the vehicle to the shop.
After stopping the vehicle, continue idling for 5 minutes, and then turn the ignition switch to the "LOCK" (OFF) position. Moreover, the vehicle should be set to the following conditions for idling.
A/C switch: OFF
Lights and all accessories: OFF
Transmission: Neutral

Sep 15, 2010 | 1998 Mitsubishi Eclipse

1 Answer

The engin lamp is lighting


most likely plugs or wires (Do both at the same time best bet) Your engine has a certain load a certain speeds, if your ignition system (plugs + wires) arent up to snuff, they will misfire at certain speeds only. I would recomend it 1st, other than that there are a couple of things that do it, but that is most likely. Shop around for ignition parts dilligently, its a very cutthroat market and prices vary greatly, make sure you only buy platinum plugs or better.

Jul 05, 2009 | 2002 Ford Windstar Cargo

1 Answer

Engine light and the D drive light flashing


it is very poss the transmission case connector is making a poor connection, remove the connector from outside the trans and see if it has any corrosion or loose pins, if problem persists replace the trans solenoid shift pack.

Jun 17, 2009 | 2003 Honda CR-V

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