4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

Crank but No Start

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Old 12-06-2014, 08:11 AM
  #1  
gawoods
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Default Crank but No Start

After installation of a new STACK RACING Throttle Body I have experienced a crank but no start. Any ideas where to start. At the same time I installed a new Cold Air Intake. Not sure why either one of these installs would cause a no start condition. 04 GT 5Speed No Other Mods
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Old 12-06-2014, 08:56 AM
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99GTvert
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Did you use the stock MAF, and did you possibly get something on it?

Are all your connections secure and good including the two smaller hoses from the intake tube to the IAC and (I forget the other one but I think it leads to the drivers side valve cover)?
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Old 12-06-2014, 03:18 PM
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cema93
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try spraying some starting fluid stuff or carb cleaner on ur air filter. if ur car starts after doing this, then it is a fuel problem
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Old 12-07-2014, 12:00 AM
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gawoods
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I disconnected the connection to the TPS and the engine fired right up. I left the engine running and reconnected the TPS and engine went to around 1800 rpm's. When I unplugged it engine returned to almost normal idle.
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Old 12-07-2014, 08:49 AM
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Can anyone advise what the "key on" voltage should be at the TPS connector?
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Old 12-07-2014, 10:26 AM
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pedalhappy
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try resetting the ECU, disconnect battery for 5-10 minutes
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Old 12-07-2014, 04:31 PM
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gawoods
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Got it. The throttle body in the location where the TPS is mounted does not have a recessed area like the factory throttle body. When I installed the TPS on the new throttle body looks like I may have gotten it off center just enough to cause the TPS to bind.

This is a bad design on the throttle body from American Muscle and Stack Racing.
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