Stock Problems/Issues Discussions related to warranty related issues and repairs, or other problems with the OEM parts and software for MINI Cooper (R50), Cabrio (R52), and Cooper S (R53) MINIs.

Harder to start when sitting over night

Old Oct 6, 2014 | 07:01 PM
  #1  
ryanleeis's Avatar
ryanleeis
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2nd Gear
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Harder to start when sitting over night

Basically when I get in the car and start it for the first time after sitting all night it takes a sec to turn over, like I have to push the gas in about half way.

Once it's started I can shut it off going back and forth and it starts perfectly fine with no gas peddle
But when sitting over night it will do it the same.. Any idea what might cause this
 
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Old Oct 7, 2014 | 04:47 AM
  #2  
minsanity's Avatar
minsanity
6th Gear
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Google my journey: Morning Hard Starts & Now, 1-3k RPM Hesitation/Yoyo/Hiccup

Read more: http://www.*********************/for...#ixzz3FSUivbZm

Check your fuel pressure. It should hit at least 52psi upon priming w/o starting. My journey would've been shorter & much cheaper had I done this 1st. Well, the upside is having new parts serving me longer.
 
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Old Oct 7, 2014 | 04:59 AM
  #3  
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JABowders
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From: Dover, PA
I just saw someone posted an issue similar to this, turned out to be a cracked Fuel pump housing. In his case he also started smell gas inside the car. When he pulled the rear seat and the access panel of the Fuel Pump he saw the plastic had cracked. He was able to find a used part to replace the broken one (that or you replace the entire pump assembly Cha-Ching$) and he is motoring on.

So I would +1 fuel pressure, then check the physical condition of your pump... and possibly the filter.

Also by your photo you are parking on a incline, I would be tempted to back in reduce the effect of gravity allowing the fuel to back flow to the Fuel tank, give that a test and see what the results are.

Motor on!
 
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