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2001 S40 Hard Starting After the engine sits for a few hours

Help, Advice, Owners' Discussion and DIY Tutorials on S40 and V40. In this forum you'll find S40/V40-specific owners asking and answering questions on maintenance, ownership, repairs, tutorials and almost every do-it-yourself thing you can do to save money owning these Volvos.

1996 - 2004 S40
1996 - 2004 V40
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VolvoDriver

2001 S40 Hard Starting After the engine sits for a few hours

Post by VolvoDriver »

My s40 starts fine in the mornings, but if i leave work for lunch after 3 or four hours it is always a hard start. Any Ideas?
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pacuser

Post by pacuser »

VolvoDriver wrote:My s40 starts fine in the mornings, but if i leave work for lunch after 3 or four hours it is always a hard start. Any Ideas?
My 2001 V40 is doing the same but not always. 1 quick start out of 4, 50% 3 seconds start and the rest of the time it hesitates a bit. The owner's manual mention a maximum starting delay of 5 sec.

I don't think it is an issue worth spending too much time and money. I mean the motor won't damaged. The starter could suffer though. The clues I have right now is the look at the fuel pressure regulator for vacuum or gas leak, and a temperature sensor that participates in the optimal gas-air mix.

I feel I am getting closer to the solution. Viva WWW
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