Engine Start fail

nicopag · Post by **nicopag** » 30 May 2013, 08:48

Hi everybody, I want to know if someone know why my first start engine of the day has this behavior.
First start and dies instantly, in the second try it works great.
Hi I post a Video.

Thanks

Post by **Ozark Lee** » 30 May 2013, 09:18

Check the fuel pressure after the car has been turned of for a few minutes. It should still be a positive pressure around 25 or 30 PSI. If it has fallen to zero that explains the problem on startup.

The fuel pressure is maintained by a check valve in the fuel pump and you can either replace the fuel pump assembly (the check valve is built into the housing) or install an aftermarket check valve in the fuel line.

...Lee

nicopag · Post by **nicopag** » 30 May 2013, 09:40

Are we talking about this? http://www.ebay.com/itm/93-04-VOLVO-850 ... fd&vxp=mtr

Is there a way to fix them?

Post by **jblackburn** » 30 May 2013, 09:45

nicopag wrote:Are we talking about this? http://www.ebay.com/itm/93-04-VOLVO-850 ... fd&vxp=mtr

Is there a way to fix them?

The check valve is an intergral part of that assembly.

You can splice a check valve into the fuel line after the pump, as Lee mentioned...or replace the whole assembly with a used one.

nicopag · Post by **nicopag** » 30 May 2013, 10:10

Can you send me an example of that valve on eBay?
Thanks