starting trouble - MustangForums.com

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5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

starting trouble

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Old 04-29-2012, 07:32 PM
  #1  
1987gt40ttop
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Default starting trouble

i have been all through the starting circuit on this car (87'gt--5speed manual) and i cant even get this thing to crank. its got a new relay, new starter, new cables, and the battery tested good. at first i got one low click at the relay and nothing else, with a test light i could see power dropping out when the key was turned to the start positon on the boot connector. i jumpped out the clutch neutral safety switch, checked connections at the ignition switch and and switch connector. i tried to by pass the relay and just jump the terminals with a screw driver and i got the sparks ofcourse but no cranking or nothing. tried jumping the boot connector to power wire and nothing, to totally take everything outta the circuit i took the main power feed off the battery and hooked it to a single pole switch and put the starter wire on the other side. tried flipping the switch and got just a low click at the starter and thats it, no bendix kicking out no cranking, nothing. now i know i should figure this is a bad starter but i just got it and they tested it at the store before they sold it to me. maybe my mind is to jammed up in this any suggestions on where i should go next?
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Old 04-29-2012, 08:46 PM
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Martin6107
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I had a similar problem on my 95 v6. It turned out to be a bad negative connection on the block that was prventing the starter motor from turning correctly.
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Old 04-30-2012, 06:47 AM
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The ignition stater switch may look good outside, but could be totally fried inside, and are well known for causing all kinds of issues..including fire, also..check the solenoid, ignition coil, distributor pick up coil, TFI module, and grounds.

All these assuming the starter is good.

But first..I'd try a different battery.
Good luck.
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Old 04-30-2012, 05:01 PM
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1987gt40ttop
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the neg ground strap is a good idea ive run into that before but even when i was trying to just get it to crank by sending 12v directly to it i took a set of jumper cables and went straight from the case of the starter on the mounted bolt and clamped it to the frame. also ignition switch, coil, and pick up are all good ideas but none of them would factor in when bypassing them and sending 12v directly to the starter. im gonna pull the starter tomorrow and take it back and have them test it. its not a dd so its no big deal. another think is i hear a a clicking sound almost like a relay around the area of the ecu when ever i try to engage the starter, even after bypassing everything else
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