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2003 s40 hard start

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Old 07-29-2014, 05:13 PM
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Default 2003 s40 hard start

My 2003 Volvo s40 starts hard. It takes 7-8 cranks to start up but once started it runs perfectly. It always starts. If I shut off and start up again in a short period of time it fires right. It also sometimes (rarely) starts up good on its own after sitting for hours. I have replaced the fuel filter and the spark plugs. I have no check engine code. My guess is fuel pressure regulator but don't want to invest the money if that is not it. I don't see fuel leaking out of the regulator. Could it still be the problem or could it be something else? The timing belt or pulleys?????? I have no idea. Please help.
 
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Old 08-04-2014, 06:06 PM
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Hi and welcome to the forum.

Usually hard cold starts are due to a tired ECT. If you think it might be from low fuel pressure, you can bump the starter, wait 5 seconds for the pump to prime the system, then try to start it.

Any pics to share?
 
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Old 08-04-2014, 09:31 PM
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Sounds like the fuel pressure regulator.
 
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Old 08-05-2014, 05:56 AM
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Default fuel pressure regulator

Great input. That's what it was. I used an advance auto coupon code and $97 later car starts perfect every time. Thanks everyone!
 
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Old 08-05-2014, 08:23 PM
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Good to hear.
 
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