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I have a 96 cadillac deville 4.6 northstar engine. I have changed the starter three times already. Once it was cracked. Third time a new one was put in, it wouldn't start and and there was smoke coming from somewhere near the starter. Last one put in it would start right away sometimes and other times it would take awhile. I gave a jump to a friend recently and a few days later it wouldn't start. Pulled the starter and the bolt on the hot side melted or warped. Put a new starter in and it won't start at all. Alternator tested good. New battery. Suggestions?

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You may have ground issue , to much current , high resistance . Do you know how to use a DVOM - digital volt ohm meter ? Do voltage drop testing on the starter electrical circuit . Watch these videos .
Starter Voltage Drop

How to voltage drop test starter motor circuit

Posted on Apr 29, 2017


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Posted on Jan 02, 2017

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SOURCE: vehicle needs to be jumped to start,battery/alternator fine.

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Posted on Nov 18, 2008

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SOURCE: put a new alternator in 2000 Jeep Grand Cherokee engine light on

Ive had this similar problem in the past with my 2000 Grand Jeep Cherokee. Ive found by putting the Jeep in neutral started right away. Good luck

Posted on Apr 08, 2009

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SOURCE: 2002 Cadillac DeVille wont start (even w/new battery!)

well first off, check the glove box light blub, make sure it shuts off when you close the door, check it by pressing the switch with your finger to make sure it shuts off, also check under the hood for the light there if there is one, pull the bulb, and the same thing for any bulb in the trunk, then check again after a day to see if the battery dies, if it is dying while the vehicle is not running then it is the battery, if it is dying after it is running then it is the alt. you can check that also tho with a multimeter set to the DC volts setting, place the black end <the ground to any grounded area> and the red end <the hot lead to the back of the alt. > it should be reading higher then 12 volts, normally should be a higher reading then 12 volts... if you are getting a lower reading or just 12 volts then the alt. is bad and needs to be replaced...hope this helps you out...

Posted on Jun 15, 2009

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SOURCE: My 1990 Cadillac Deville wont start or engage starter

hey there. my name is dwayne, and im contacting you for help on my 98 caddy deville. well three days ago. i got a alarm installed. and friday i was driving on da high way and it just turned off. and smoke started coming from my steering wheel. engines coolant temp. was only 200 no smoke was coming from engine. now car wont start at all.!! please help

Posted on Jun 28, 2010

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There is no way to adjust the timing on your car....if you suspect or have verified that the timing is off, then either something is wrong with the computer, or something has gone wrong mechanically. Fixing a timing issue is not a job advise of the at home mechanic as the Northstar engine is very complex and requires many specialized tools for its repairs.

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