93 Explorer HELP!!!!
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New User
Joined: Jun 2003
Posts: 1
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From: Groundhogville, USA
93 Explorer HELP!!!!
I have a 93 Explorer......for a few days now, I've been having a problem and no one seems to know what it is. Being a woman....mechanics just wanna take advantage of this "dumb blonde!" Not happening!!
Here's the problem.... my Explorer runs great but the past few days my Tach drops to zero, and within minutes I lose power and my check engine light comes on. I usually pull off the road and wait a minute or two and then everything is back to normal and I'm on the road again. It never stalls but after this problem, the Tach usually stays right on zero until I turn it off. But right before I lose power and the check engine light comes on, the Tach always drops!
My boyfriend is Mister Know-it-all and doesn't want me to take it to the garage to be checked so I'm turning to all of you! HELP!!!!!!
Here's the problem.... my Explorer runs great but the past few days my Tach drops to zero, and within minutes I lose power and my check engine light comes on. I usually pull off the road and wait a minute or two and then everything is back to normal and I'm on the road again. It never stalls but after this problem, the Tach usually stays right on zero until I turn it off. But right before I lose power and the check engine light comes on, the Tach always drops!
My boyfriend is Mister Know-it-all and doesn't want me to take it to the garage to be checked so I'm turning to all of you! HELP!!!!!!
Elder User
Joined: Aug 2001
Posts: 942
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From: South Texas
93 Explorer HELP!!!!
You have a real can of worms that will not get a quick fix. The tac lead is developed in the EDIS (electronic distributorless ignition system module) located on the radiator wall right in front of the battery, and is fed into the tachometer and the engine computer.
Other components involved are the coil pack and the variable reluctance sensor (Crank position sensor) located on the front of engine near crankshaft harmonic balancer.
You really need to pull the stored code set when engine dies and also run the self tests to narrow down the fault before you go replacing expensive parts. I know the Edis module runs around $150 and the coil pack is around $60. Crank sensor should not be too expensive though.
If you need, I can post some links for additional info on pulling codes and static tests of some of the engine sensors.
Dialtone
Other components involved are the coil pack and the variable reluctance sensor (Crank position sensor) located on the front of engine near crankshaft harmonic balancer.
You really need to pull the stored code set when engine dies and also run the self tests to narrow down the fault before you go replacing expensive parts. I know the Edis module runs around $150 and the coil pack is around $60. Crank sensor should not be too expensive though.
If you need, I can post some links for additional info on pulling codes and static tests of some of the engine sensors.
Dialtone
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L J Buerger
1999 - 2003 7.3L Power Stroke Diesel
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Feb 16, 2012 04:23 PM
