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new wrecker problems

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Old Oct 11, 2014 | 07:06 PM
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new wrecker problems

i just got a 1996 f450 wrecker 7.3 diesel. well problem is when i try to start up the truck is having hard start. it takes 2-3 times trying to start for it to run. after runs rough for a couple moments then acts fine any ideas
 
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Old Oct 11, 2014 | 07:20 PM
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Could be MULTIPLE things. I would start by checking the glow plug system for proper operation
 
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Old Oct 11, 2014 | 07:23 PM
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just had glow plugs replaced this first diesel
 
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Old Oct 12, 2014 | 07:17 AM
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Originally Posted by dogdog130
just had glow plugs replaced this first diesel
That really doesnt tell me anything other than the glow plugs are new. I hope they are beru or motor craft. ANYTHING else is just looking fro problems.

but there are several other pieces involved with the glow plug stytem.....

-The Ecm which tell the system when to turn on and grounds the solenoid to turn then on

-The wire come from Ecm to relay

-The relay

-The constant 12v power wire

-the keyed 12v power wire

- The wires running from solenoid to the valve cover harness'

-the plugs

-the Valve coverGaskets'

-last but not least the Under Valve Cover Harness'
 
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Old Oct 15, 2014 | 05:08 PM
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video of start

 
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Old Oct 16, 2014 | 04:38 AM
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You have a DEAD MISS. Start unplugging the valve cover harness' one as a time and see which one makes no difference plugged in or not
 
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