Starting problem
#1
Starting problem
My car (2000 S40) will start right away when it’s cold, but if car is warm it cranks a lot before it turns over.
If I turn it off and on right away it will start with no problem, but if I wait a few minutes and then try it again it will crank before it starts.
I replaced the sparks and coils. It fixed engine misfire, but not starting problem.
Any ideas?
If I turn it off and on right away it will start with no problem, but if I wait a few minutes and then try it again it will crank before it starts.
I replaced the sparks and coils. It fixed engine misfire, but not starting problem.
Any ideas?
#3
#4
RE: Starting problem
How about this. Now my S40 takes awhile to start up when the engines cold, and after cranking up the RPM stablizes at about 500rpm for about 15 secs with the CEL on, and goes to normal idle RPM and the light goes off.
No problems starting up when the engine's warm though.
No problems starting up when the engine's warm though.
#6
#7
#8
RE: Starting problem
You may need a throttle body cleaning but I have a feeling its your fuel pressure regulator based on the symptoms. My light came on and off as well but eventually just stayed off for some reason? But hook up a gauge to check if your fuel pressure drops..
Let me know what happens??
Let me know what happens??
#9
#10
RE: Starting problem
ORIGINAL: jojoswhip
You may need a throttle body cleaning but I have a feeling its your fuel pressure regulator based on the symptoms. My light came on and off as well but eventually just stayed off for some reason? But hook up a gauge to check if your fuel pressure drops..
Let me know what happens??
You may need a throttle body cleaning but I have a feeling its your fuel pressure regulator based on the symptoms. My light came on and off as well but eventually just stayed off for some reason? But hook up a gauge to check if your fuel pressure drops..
Let me know what happens??
Thanks
#11
#12
#13
RE: Starting problem
ORIGINAL: tech
The throttle body is easy to clean.
Follow the one big hose to the engine and that is the throttle body.
You can remove the hose and clean it on the car.
Or you can remove it and buy a new gasket and clean it good and reinstall it.
The throttle body is easy to clean.
Follow the one big hose to the engine and that is the throttle body.
You can remove the hose and clean it on the car.
Or you can remove it and buy a new gasket and clean it good and reinstall it.
#14
#17
#19
RE: Starting problem
It's a replacement item as of right now. The problem is the diaphram inside the FPR which ruptures and allows pressure to equalize which disables it's function of regulating pressure. On some cars you simply buy a new diaphram and replace it but on our cars I have only been able to find the whole thing. The dealer price and the online price with shipping works out to be close.
#20
RE: Starting problem
Just underneath the fpr there is a little rubber hose shaped like a u, on my 2001 s40 it's cracked , would that have anything to do with fuel pressure? Come to think of it I think it's part of the fpr, is that right? So I guess I would have to change the whole piece? Thanks.