Hard starting when hot - vapor lock?

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#3 (permalink)

12-14-2010, 11:09 AM

Dustin Mustangs Dustin Mustangs is offline

CC Member

Join Date: Nov 2004

Location: Zion, MI

Cobra Make, Engine: 04 SPF MK III, Dart 427

Posts: 46

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No, but judging by the behavior of the engine before and after it starts in this situation it seems very obvious it is struggling to get enough fuel. Car runs and starts great under all other scenarios although we are getting intermittent weird noises/vibrations at low engine speeds that we have narrowed down to either the fuel pump or regulator.

BTW, we are in Michigan so ambient temps are not that high. Normally around 80 and rarely over 90. This also means we are not able to go out and reproduce this scenario anytime soon. I was hoping this would be a common problem with a proven solution but maybe that is not the case.

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Last edited by Dustin Mustangs; 12-14-2010 at 11:17 AM..

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