Question about 2000 Jeep Grand Cherokee

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My 2000 Jeep grand Cherokee 4.7L, V8 for mistake had a small short circuit between the (+) generator cable and (-) generator body but the ignition key was off. Now wont start only crank. Should be As a consequence the engine does not work, Each electrical components may have been damaged? Can be the PCM? Junior

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You did blow the fuse.
you skipped step one in the FSM book
disconnect battery minus lug, (posted here 1000 times)

you blew out, Fuse link A11,
google that and see.

the power wire from the back of my alternator is black, then the last 4 inches that attaches to the PDC is green. would the green part be the fusible link, and if so how do you test it?
easy, batter lugs off.
ohm meter (dmm set to Resistance lowest range)
measure from altenator hug wire to battery plus lug.
if not 0.0 ohms or near, its blown

Posted on Mar 04, 2015

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Check the fuse box, for the one of the main ignition fuse. Usually a 40 - 60 amp breaker

Posted on Mar 04, 2015

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Jeep grand Cherokee 2000 v8 runs 15min cuts off cools down 15 min run short time ( no errors)


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Hi Joko,

What you are describing is a failure of a main circuit. The first thing you should check is yo make sure that your battery is in good condition and that the cables are clean and tight. Let me know if yu find anything wrong there. Then there may be another main circuit problem. Check all of the fuses in your fuse block in the engine compartment. If any of these fuses are blown, it will usually cause several things to not work. If you find any fuses blown, DON'T REPLACE IT YET. Let me know WHICH fuse is blown and I can help you find out why it blew so you can get the problem fixed.

Get back to me on this and we will continue.

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  2. Remove lower radiator hose clamp and lower radiator hose at thermostat housing.
  3. Remove thermostat housing mounting bolts, thermostat housing and thermostat.

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The governor pressure sensor is the most likley cause however an inspection of fluid or debris in trans pan would be a good idea to make sure there's nothing excessive in it. Attached is a list of possible causes however the senor would be the most common.

POSSIBLE CAUSES
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  • 5 volt supply circuit open
  • Check transmission fluid level and condition
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  • GOV press sensor signal circuit shorted to ground
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  • Valve body
  • GOV press sensor signal circuit shorted to ground inside transmission
  • GOV press sensor signal circuit open inside transmission
  • GOV press sensor ground circuit open inside transmission
  • Governor pressure sensor (high)

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