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93 Jeep Cherokee not firing
#1765420
06/20/16 06:16 AM
06/20/16 06:16 AM
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Joined: Jun 2008
Posts: 2,457
North Alabama
robinhedd
OP
10 point
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OP
10 point
Joined: Jun 2008
Posts: 2,457
North Alabama
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OK, 93 Jeep Cherokee 4.0 6 cylinder is not firing at all. I know ive posted this on here before, but cant find the thread. If i remember correctly, everybody pointed to the Crank Position Sensor. What do you say? Anybody with experience on this problem? Thanks, Robinhedd
"Guess I just got too much Mathews in me!"
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Re: 93 Jeep Cherokee not firing
[Re: robinhedd]
#1765455
06/20/16 06:42 AM
06/20/16 06:42 AM
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Joined: Apr 2013
Posts: 4,697
Alabama
Rmart30
10 point
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10 point
Joined: Apr 2013
Posts: 4,697
Alabama
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4.0's are notorious for crank sensor failure.. id recommend getting a OEM one.
XJtalk, cherokeeforum are very helpful sites for them.
Ethical behavior is doing the right thing when no one else is watching - even when doing the wrong thing is legal. Aldo Leopold .. (except when it comes to trailer tags)
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Re: 93 Jeep Cherokee not firing
[Re: robinhedd]
#1765488
06/20/16 07:40 AM
06/20/16 07:40 AM
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Joined: Jun 2008
Posts: 2,457
North Alabama
robinhedd
OP
10 point
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OP
10 point
Joined: Jun 2008
Posts: 2,457
North Alabama
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The engine turns over, but no fire or spark. It did the same thing about 15 years ago, & it was the Crank position sensor.
"Guess I just got too much Mathews in me!"
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Re: 93 Jeep Cherokee not firing
[Re: robinhedd]
#1765498
06/20/16 07:56 AM
06/20/16 07:56 AM
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Joined: Sep 2007
Posts: 7,857
Hartselle, AL
trlrdrdave
14 point
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14 point
Joined: Sep 2007
Posts: 7,857
Hartselle, AL
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I had one that if the battery ever got low would do that. It had the alarm in it and it wouldn't fire. Had to put the key in the rear hatch and turn it three times. It would fire right up.
"In time of war, send me all the Alabamians you can get, but in time of peace, for Lord's sake, send them to somebody else." General Edward H. Plummer
"Blessed are those who, in the face of death, think only about the front sight." Jeff Cooper
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Re: 93 Jeep Cherokee not firing
[Re: trlrdrdave]
#1765512
06/20/16 08:09 AM
06/20/16 08:09 AM
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Joined: Jun 2008
Posts: 2,457
North Alabama
robinhedd
OP
10 point
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OP
10 point
Joined: Jun 2008
Posts: 2,457
North Alabama
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I had one that if the battery ever got low would do that. It had the alarm in it and it wouldn't fire. Had to put the key in the rear hatch and turn it three times. It would fire right up. Mine doesnt have an alarm system, but it does have power locks and windows. I read on a forum today, after changing every possible part (CPS, coil, plug wires, rotor button) that a guy told someone to hit the door unlock on the passenger side 3 times to re-set. The guy said it fired right up.
"Guess I just got too much Mathews in me!"
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Re: 93 Jeep Cherokee not firing
[Re: Rmart30]
#1765516
06/20/16 08:15 AM
06/20/16 08:15 AM
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Joined: Jun 2013
Posts: 55,220
Gee's Bend/At The Hog Pen
James
Freak of Nature
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Freak of Nature
Joined: Jun 2013
Posts: 55,220
Gee's Bend/At The Hog Pen
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4.0's are notorious for crank sensor failure.. id recommend getting a OEM one.
XJtalk, cherokeeforum are very helpful sites for them. Yep...^^^^ Simple fix but a bitch to get to
Do not regret growing older, it's a privilege denied to many!
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Re: 93 Jeep Cherokee not firing
[Re: James]
#1765536
06/20/16 08:32 AM
06/20/16 08:32 AM
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Joined: Aug 2012
Posts: 4,317
Boaz,Al,Mexican Paradise
OcToBeRDrEaMiN67
10 point
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10 point
Joined: Aug 2012
Posts: 4,317
Boaz,Al,Mexican Paradise
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Hope you have small hands.I don't and it was nearly impossible for me but I got it changed out.Why in the world they put it all the way on top of the flywheel is beyond comprehension.
Psalm 27:1 The Lord is my light and my salvation,whom shall I fear? The Lord is the strength of my life;of whom shall I be afraid?
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Re: 93 Jeep Cherokee not firing
[Re: robinhedd]
#1765686
06/20/16 11:12 AM
06/20/16 11:12 AM
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Joined: Sep 2009
Posts: 2,899
Florida
jacannon
10 point
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10 point
Joined: Sep 2009
Posts: 2,899
Florida
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Does the check eng. light come on when the key is on? Does it have injector pulse? All these things tell you where to start looking.
Grandma said...Always keep a gun close at hand, you just never know when you might run across some varmint that needs killing...
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Re: 93 Jeep Cherokee not firing
[Re: robinhedd]
#1766424
06/21/16 07:08 AM
06/21/16 07:08 AM
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Joined: Jun 2008
Posts: 2,457
North Alabama
robinhedd
OP
10 point
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OP
10 point
Joined: Jun 2008
Posts: 2,457
North Alabama
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I charged the battery & tried to start the Jeep again yesterday. I checked for fire coming from the ignition coil, nothing. I also noticed the power locks on the doors not working, the power windows work fine? Robinhedd
"Guess I just got too much Mathews in me!"
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