s40 crank no start

ldenorio · Post by **ldenorio** » 23 Jan 2022, 14:54

hello good people of volvo land
my 04.5 s40 2.4i (285k) is a crank no start, checked the fuel pressure at rail with gauge and getting 43lbs of pressure when cranking, how do i check if i'm getting spark?
not sure if alarm is causing this but i have no codes, i disconnected the battery for an hour and reconnected still crank no start,
i didnt have any other issue before hand so i dont think its the cam or crank sensor since i dont believe they just die, i was told they usually give you some type of code or notice before hand, like stuttering or stalling.
any suggestions would be greatly appreciated
best regards
Larry

Post by **RickHaleParker** » 23 Jan 2022, 21:17

Check the tension on the timing belt. I bought my 2003 S40 with a cranks but no start condition. The Tensioner retainer broke and let the timing belt slip just enough to case a no start condition but no damage. Got me a $3500 car for $500 and a timing belt kit. Because nobody else would touch it.

Post by **abscate** » 31 Jan 2022, 03:18

43 psi sounds low for a P2 fuel pressure. I think Spec is 55 psi. Two things fail on P2 fuel delivery , the fuel pump and the pump electronics module or PEM

Try a shot of ether to see if it’s shy on fuel or spark

Post by **RickHaleParker** » 31 Jan 2022, 06:21

abscate wrote: ↑31 Jan 2022, 03:18 43 psi sounds low for a P2 fuel pressure. I think Spec is 55 psi. Two things fail on P2 fuel delivery , the fuel pump and the pump electronics module or PEM

Try a shot of ether to see if it’s shy on fuel or spark

Second generation S40 are P1.

Fuel line pressure Desired value
Relative pressure 380 kPa ( 55 psi )
Absolute pressure 480 kPa ( 70 psi ).

ldenorio · Post by **ldenorio** » 15 Feb 2022, 15:53

thanks for all replies, it ended up that there was no spark, upon further inspection it was a loose ground on the coil wires.