05 Ml350 try to start but won't run.
08-26-2015, 04:59 PM
#1
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ML350
05 Ml350 try to start but won't run.
All fuse good. Spark good. No gas pressure. RPM gauge move when trying to start. Can someone confirm CPS is good? Anything I can try before buying fuel pump.
08-26-2015, 05:10 PM
#2
Super Member
If you have measured fuel pressure with a fuel pressure gauge & there is no pressure, then its the fuel pump & or fuel filter.
If the RPM gauge moves while cranking, it indicates that CKP is ok.
Welcome to the forum
If the RPM gauge moves while cranking, it indicates that CKP is ok.
Welcome to the forum
08-27-2015, 01:04 AM
#4
Super Member
on a 2005 model, I am not sure which is the relay & the fuse for the pump. Open the footwell fusebox & check if the fuses are ok. Check in the engine compartment fusebox if K3 relay is for fuel pump. If it is replace with a similar one from the fusebox.
Inspite of RPM gauge moving while cranking, the only 1000% way to know that CKP is ok , is to scan the car.
But, still, the fact that there is no fuel pressure points at a fuel delivery issue (pump/filter).
Inspite of RPM gauge moving while cranking, the only 1000% way to know that CKP is ok , is to scan the car.
But, still, the fact that there is no fuel pressure points at a fuel delivery issue (pump/filter).
