Question about 1998 Ford Explorer

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Wheni Start up it idles high an taps mostly in the morning and it stops when it warms up wats wrong 1998 Ford Explorer 2wd 4.0 Auto 4dr

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If it is the SOHC engine, then your timing chain guides are ready to fail. Even though it is a 98, you may still get them replaced under the recall by Ford. Otherwise, they need to be replaced before they fail completely, as it will go from a $600 job to a $2500 job. The valvetrain will be destroyed if they fail.

This is a common problem with the 4.0 SOHC engine.

Posted on Jul 12, 2010

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My check engine light. Took it to Auto Zone to run a dignose and it read ignition coil defective. The sparks plugs and wire were just changed. After driving it a couple days the light hasnt cut off and there is still a midst upon take off. I purchased a coil-ignition but could it be something else?

Posted on Jul 28, 2010

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Posted on Jan 02, 2017

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1 Answer

2001 Ford Explorer Sport 4.0 SOHC revs high on cold start and then shuts off


sounds like a bad idle air control valve. it is like a choke it has the motor run high and then when the motor is warm it idles normal

Dec 30, 2012 | Ford Explorer Sport Cars & Trucks

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Engine Runs Rough at Idle


go to auto zone,its free ck.throtle senser

Feb 19, 2012 | 2002 Ford Explorer

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The transfer case on my 1998 ford explorer will not come out of 4 low. The switch is not allowing it to change to 4 high or automatic. I was wondering if there is any way to find a scematic diagram of the...


it s a long shot, but put the explorer on jack stands start engine, put in neutral GENTLy tap on shift gear on transfer case while someone is pushing handle into high. tap gas to change RPM s while working it. put into drive and do the same but put transfer case into neutral, if goes into neutral stop and put transmission into neutral than put transfer case into high. keep in mind if it works don t take it out, or you will be doing all this again. have had shift cables break have someone shift while you try to change lever position. Might be worth having it checked , transfer case is not a transmission. senser, computer, fuses, solenoid relays are just some easy fixes for this problem..

Sep 06, 2017 | 1998 Ford Explorer

2 Answers

I have a 1998 Ford Explorer, 2wd, 4.0L SOHC 6cyl. It won't idle when cold. Once it's warm, it runs fine. Codes coming up is running lean. Could it be my coolant temp sensor?


Check for vacuum leaks. this is the main cause for lean codes. Definitely not the coolant sensor. Let me know there are other things also.

Feb 14, 2011 | 1998 Ford Explorer

1 Answer

I have a 1986 ford ranger 4x4 with a 2.9l and auto transmission. It is very hard to start. When it does finally start it idles high. What could be the problem?


If the idle remains high after the engine is warm, then you have a vacuum leak. Check all of the rubber hoses coming from the intake after the throttle body.

Mar 05, 2010 | 1986 Ford Ranger 2WD

1 Answer

My 2003 Ford Explorer has a high pitched whistle around 2000 RMPs. If I accelerate or decelerate the whistle stops. I've replaced the idle aircontrol valve, as I read this could be a possible solution to...


you may have a tensioner or idler pulley starting to go bad. They make a high pitched whistle when the bearings are on thier way.

Simply have someone slowly bring it up to 2000 rpm and listen with the end of a wooden broom handle touching the center bolt on each. Be careful not to get caught.

If you're not used to this you may be able to hear it whithout use of the "hearing aid"

Your drive belt may simply need dressing. You can buy this at almost any auto parts store for about 4 bucks. (dont use anthing else as you will cause the belt to stretch creating more issues)

Jan 01, 2010 | 2003 Ford Explorer

1 Answer

I have a 94 Ford Explorer 4dr 2wd w/ac. When I


Remove the blower motor located under the hood on the passenger side in the evap. case. HEld in by 3 8mm screws. The fan blade may have broken .

Nov 15, 2009 | 1994 Ford Explorer Limited

1 Answer

Lite tapping in engine,very ruff idle,stops when idled up and runs smooth


ruff idle may b idle controll senc. ----tapping may be plugs-- wires, and or gas try 91 oct gas next 3 tanks and see thats the cheeepset place to start

May 28, 2009 | 1998 Ford Explorer

2 Answers

Firing order


that is true your firing order is wrong here is a link to a web sight that has all the 1998 explorers 6cyl just click on the one that your explorer is and it'll show you the correct firing order also make sure you have your plugs gaped right good luck.
http://autorepair.about.com/library/firing_orders/bl-ford-firing-98.htm

Mar 22, 2009 | 1998 Ford Explorer

1 Answer

O2 sensor replacement


It's easier to change when the exsaust is warm. Start the truck and let it idle for a few minutes. You can use adjustable wrench or the actual O2 sensor removing socket to remove it! Be careful NOT to burn yourself!

May 23, 2008 | 1998 Ford Explorer

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