Question about 2006 Jeep Grand Cherokee

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Starter relay i have put 2 new relays in and it will work for a few days with no problems then it does the same thing it wont start what makes the relay keep going out

Posted by allison gilkerson on

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2 Answers

eeusueeusu

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Posted on Sep 29, 2018

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  • Jeep Master
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Have a voltmeter? stop guessing, use the meter. same time and $$$$
starter? but what are the symptoms. ?????? no start sure. but
1: dead starter (not a sound)?
2: solenoid on starter click?
3: dead solenoid?
4: some times starts if i wiggle A/T shift lever? PRNDL bad.?

my guess, is the relay was good. all a long ?
if the old relay was burned to a crisp in inside (did you look) then
the starter can be shorted. they can in fact short.

we use to simple and cheap tools, a voltmeter and ammeter
The key switch energizes the relay.
the relay has a coil. if the coil goes to 12v, (meter across coil)
then the relay is energized. (cranking)
if that works we look at the relay output. (solenoids can short too)
use the volt meter.
if the voltage at battery sags below 10v. the battery is bad. or the starter is shorted.
we use an ammeter to see that short.
100- 200 amps (no engine stated but is covered in the FSM)

here is a voltage plot.
if you watch current it it goes to 500amps and the solenoid just bangs
the starter is shorted.

test 1:
voltmeter to battery neg lug (black meter lead)
meter on 20vdc range (battery with meter there,,reads 12.6vdc.)
red lead to starter solenoid small wire, key line (sT) i call that.
I turn the key to ST position.
the solenoid ST pin (small) goes to what voltage. key held there.?
no wire pulled, this is a live test.
we do that first.

Posted on Dec 18, 2013

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5 Related Answers

Anonymous

  • 1 Answer

SOURCE: wont start, new battery, relay good, starter good.

Check the Starter Solenoid mounted near the battery.Check it out in the dark...have someone try to start it and see if it sparks at the solenoid.connections may be loose.Also check/wiggle wiring harness to starter.

Posted on Apr 19, 2009

Anonymous

  • 39 Answers

SOURCE: I have a 2002 jeep grand cherokee (2 WD, 4.0L), it

may be a faulty fuel pump

Posted on Jul 06, 2009

super_guy

  • 1986 Answers

SOURCE: starter keeps turning even when key is turned off

Curious, do you have an autostart installed? I had that happen that the Autostart shorted and just kept telling my starter to continue cranking

Posted on Aug 12, 2009

Anonymous

  • 1 Answer

SOURCE: 07 grand cherokee 3.7 V6 gas engine. Vehicle wont start

I have the same issue. Did you get your problem solved?

Posted on Jan 18, 2010

Anonymous

  • 1 Answer

SOURCE: 2001 Jeep Grand Cherokee Limited wont start.

Your reply really sucks.

Posted on Jan 18, 2010

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2) TRY PULLING THE FUSE TO THE SUN ROOF AND DOOR LOCKS AND REPLACE THE RELAY IF IT STAYS IN YOU HAVE A PROBLEM WITH ONE OR THE OTHER. THIS COULD BET A MOTOR PROBLEM ON THE SUN ROOF OR A DOOR LATCH PROBLEM.
WE WILL TAKE THIS ONE STEP AT A TIMEIF THIS DOES NOT WORK, E-MAIL ME AT [email protected]
IF THIS DOS'NT WORK I'LL HELP YOU THE BEST I CAN WITH OUT SEEING THE CAR. THIS IS ONE OF THOSE PROCESS OF ELIMINATION REPAIRS AND TO TAKE IT TO A REPAIR SHOP THIS IS GOING TO BE EXSPENSIVE

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