Question about 1999 Jeep Grand Cherokee

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If the radio turns off and possibly a check engine light, check your ignition switch. if your car things its not suppose to be on the radio will cut off and you will loose everything the ignition turns on. i.e. radio, dash board lights will be illuminated, and at sometimes the car wont even start if you try to turn it on. its a big problem with honda pilots so give it a shot. best bet bring it to a shop to get it inspected, that will be 99$ however when the problem is found fix it your self this will save you at least $200. sometimes you need to pay a little to save a lot :)

Posted on May 16, 2014

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Check your battery and alternator connections and unhook any aftermarket audio equipment. Also check the charging voltage, it should be around 14-14.7

Posted on May 16, 2014

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The P1594 means that the battery voltage sense input is above the target. This is most probably a problem with the alternator. I would take it to a shop where they can test the alternator for you.

Posted on May 15, 2014

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Posted on Jan 02, 2017

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SOURCE: 2000 grand cherokee gas milage

Wide tires make less gas millage, get narrow wheels, let the car accomplish speed slowly from 0 to 30, look at air filter,if shortly replaced, oxygen censor, 15 miles is normal 16 miles per gallon is good for a V8

Posted on Jan 24, 2009

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SOURCE: No FM radio; only AM

check antenna make sure its tight and connected.

Posted on May 17, 2009

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SOURCE: My 1995 jeep grand cherokee interior lights flash,

Lots of the older Jeeps have wiring problems. Most of the problems were caused by a really crappy block connection on the firewall behind the engine. The terminals in the connection block were very very small and failed to connect well. I have removed several of these and put individual connectors on each wire. (pain in the ****) Your problem may be related to this. In any event you have a wiring problem and you're going to have to trace it down with a multimeter wire by wire. With so many things mentioned I tend to think it is a bad ground so check the ground wires first from the fuse box to the end connection.

Posted on Dec 30, 2009

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SOURCE: faulty radio,after changing the integrated circuit

try here

Posted on Mar 26, 2010

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SOURCE: 1998 grand cherokee, radio nwill not work with key

wires are crossed in back of radio.

Posted on Feb 13, 2011

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1 Answer

AM/FM radio how can get sound back?

a bad antenna tops list. or the cable fell off to it?
got static with volume up?
if you remove the ant. jack and put finger on the hot pin inside
you will become a human antenna, and pickup close local stations
or use a length of any wire, to put there and get lots of stations
if that works the radio is ok and antenna is bad.
we do this bench testing.

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may be static ,,, so turn off ign and all electrics and disconnect battery for ten minuites ,,,,, then reconnect and make sure you have a radio code before you do it ,,,,

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Sounds like the installer may have unplugged your antenna wire from the antenna, which is close by the computer and maybe was accidentally unplugged. Have it checked out.

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Some vehicles have a sensor that turns this light on at a certain milage and it really means nothing, the dealer should be able to remove the light for a charge.Hope this helps and Thank You for asking.

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No FM radio; only AM

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Apr 07, 2009 | 1998 Jeep Grand Cherokee

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