Mitsubishi Montero & Montero Sport This sport utility vehicle offers more size than the other Mitsubishi SUVs, but manages to keep a sporty look and comfortable feel, unlike many larger SUVs.

2001 3.0l montero cranks slow

  #1  
Old 02-03-2018, 04:29 PM
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Default 2001 3.0l montero cranks slow

Was driving and quit on me and cranked slow so towed home battery tested said dead cell and bench tested starter using a screwdriver to simulate a load on gear and and spun fast with driver jammed against gear. So replaced battery but still turns over slow and when cranking drops from 12.6 volt to 11.5. Help am at a loss as to what it could be
 
  #2  
Old 02-04-2018, 08:29 AM
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Clean all your cables and grounds.
 
  #3  
Old 02-04-2018, 02:35 PM
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Originally Posted by larry4406 View Post
Clean all your cables and grounds.
Already tried that
 
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Old 02-05-2018, 09:50 AM
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If you replaced the battery and checked/cleaned all battery cables and grounds, then the next logical item in the chain is the starter. I'm not sure how accurate is a bench test you describe with the screwdriver jammed against the starter... Perhaps take your starter to an auto parts store and have them run it on a proper tester?
 
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Old 02-05-2018, 05:58 PM
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Originally Posted by HunterD View Post
If you replaced the battery and checked/cleaned all battery cables and grounds, then the next logical item in the chain is the starter. I'm not sure how accurate is a bench test you describe with the screwdriver jammed against the starter... Perhaps take your starter to an auto parts store and have them run it on a proper tester?
Auto parts can only bench test with no load
 
  #6  
Old 02-05-2018, 06:09 PM
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Ok, then different approach:
hook up a voltmeter across the battery "+" and "-" terminals. Note voltage. Crank the engine and note battery voltage while cranking. Repeat this process by measuring voltage at positive terminal on the starter and negative terminal on the battery. If you have significant difference between the two measurements (at battery vs at starter), you have an indication of bad wiring or bad ground somewhere. You then can try to locate the spot that produces the voltage drop in the circuit. Fix it by cleaning connector or replace the bad positive cable or bad ground strap. If you have similar difference in voltage at starter as you have at the battery - you have a bad starter.
 
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