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The sentry key light stays on in my 99 jeep grand cherokee turns over but wont start replaced fuel pump disconnected computer, tried disconnecting battery to reset nothing works

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  • Jeep Master
  • 15,575 Answers

Anti-theft system . Dealer , nothing you can do , disconnecting computers ,disconnecting the battery won't do anything ,. Light lit ? DTC'S - diagnostic trouble codes stored . need to have a qualified repair shop diagnose it.

Posted on Feb 03, 2018

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Posted on Jan 02, 2017

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SOURCE: 1995 jeep grand cherokee wont start

it most definately is the crank shaft sensor. same exact prob i had. it costs about 60 bucks and 3 minutes to replace yourself. one bolt holds it into the transmission bell housing and one connector wire. very simple fix. call off the wrecker. just have plenty of ratchet extensions available i had to go in from behind the transfer case to reach the bolt but it was still pretty simple to install.

Posted on Jan 29, 2009

ruteng1
  • 79 Answers

SOURCE: 2002 jeep grand cherokee v8 ltd signal won't turn off

most likely a broken turn signal switch assem.
- Rudy

Posted on Apr 30, 2009

  • 7 Answers

SOURCE: My 99 jeep grand cherokee will not start. My

Sounds like you need to replace the power cable to the starter, I just did this yesterday on my Saturn...There isn't even clicking right?

Posted on Sep 14, 2009

  • 159 Answers

SOURCE: 2000 Jeep Grand cherokee Laredo

sounds alot the the pcm it controls the fuel pump and ign system but the anti theft would keep it from starting because the key has a transponder in it programmed for that vehicle and that would kill all ign if triggered

Posted on Sep 27, 2009

  • 1 Answer

SOURCE: 2003 Jeep Grand Cherokee won't start after battery

I just replaced my battery today and noticed a switch that the battery sits on. I havent looked in to it but I would guess the car wont start or maybe even not turn over it it thinks the battery has moved from where it belongs. Hope this helps some.

Posted on Nov 02, 2009

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1 Answer

Wont start cranks no gauges slashed key symb on dash lit


Sounds like your Sentry Key Immobiliser Module may be at fault. That's a Main Dealer Problem. Try disconnecting the battery lead for a minute or 2 then reconnect. Red.

Dec 01, 2014 | 2003 Jeep Grand Cherokee

1 Answer

I have a 99 jeep grand cherokee 4.7, the alarm went crazy and the wont start. guages dont budge and horn keeps honking and lights flashing. sentry key light is on in guage cluster any help


Sounds like you need to perform a relearn on the anti theft system, it's not recognizing the key if this happens with the key inserted. Might want to look online for a reset procedure for Jeep. GM has you keeping the key in the ignition in the on position for 10 minutes.

Jul 17, 2014 | 1999 Jeep Grand Cherokee

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Anti theft engaged ! Try disconnecting the negative terminal for about 3 min the reconnect it! Check it out on you tube !

May 03, 2014 | 1998 Jeep Grand Cherokee

1 Answer

My 93 jeep grand cherokee is not getting fuel...if I disconnect the negative post for awhile and then reconnect it, the jeep gets fuel and will run....what is going on?


If the check engine light does not light up on the dash when you turn on the ignition, at those times when your jeep doesn't want to start, then your main jeep ecm is in need of repair. The fuel pump relay will get energized only after that check engine light comes on. It's a known problem, especially with the first and second year production Grand Cherokees, 93 and 94.

Jun 30, 2012 | 1993 Jeep Grand Cherokee

1 Answer

2003 Jeep Grand Cherokee won't start after battery was disconnected and reconnected. On a battery box it tries to start but won't turn over & the Sentry Key Ignition System light blinks on some of the...


I just replaced my battery today and noticed a switch that the battery sits on. I havent looked in to it but I would guess the car wont start or maybe even not turn over it it thinks the battery has moved from where it belongs. Hope this helps some.

Oct 12, 2009 | 2003 Jeep Grand Cherokee

1 Answer

2000 Jeep Grand cherokee Laredo wont start. Engine turn over . No noise from fuel pump with ignition on. Replaced fuel pump and filter.Turn ignition on- pump did not run.Jumped the fuel pump at the pump...


sounds alot the the pcm it controls the fuel pump and ign system but the anti theft would keep it from starting because the key has a transponder in it programmed for that vehicle and that would kill all ign if triggered

Sep 22, 2009 | 2000 Jeep Grand Cherokee

1 Answer

2001 Jeep Cherokee - Cranks won't start - Gas gauge "E" w/gas


Disconnect and replace fuel filter.With filter disconnected have someone momentarily turn key to on position to see is fuel pump is working.Make sure you have lots of rags,a drain pan and safety goggles on

Sep 11, 2009 | 1993 Jeep Grand Cherokee

1 Answer

My 94 jeep cherokee started ran for a minute or 2 and stopped


i would suggest checking to see if you are getting fuel by disconnecting the fuel line at the fuel rail and turn key if no fuel then its either fuel pump or fuel filter. if you get fuel then it would be the spark

Jun 14, 2009 | 1994 Jeep Cherokee Country

4 Answers

Jeep 1995 Grand Cherokee won't stay running after changing fuel filter & fuel Pump. There is plenty of spark and fuel pressure (35 PSI)


how do you reset the computer for 1995 jeep grand cherokee changed the starter yesterday now it only runs 10 seconds and dies some one said to reset conputer but i dont know how tried the internet no luck please anybody help thanks ken

Mar 11, 2009 | 1995 Jeep Cherokee

1 Answer

2002 Jeep Grand Cherokee Laredo 4.0L won't start


Crank position sensors are a big problem in these vehicles. Scan the Jeeps computer and post any codes you come up with.

Dec 27, 2008 | 2002 Jeep Grand Cherokee

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