My truck has been starting hars since I replaced the sending unit about a year ago,and it keeps getting worse. If i cycle the key a few times before turning over it starts fine but just going in and turning it over it will not start the first time usually on the second. Not really a major problem but just wanted your input. thanks Maybe a weak sending unit? Fuel filter is brand new.

 

Was it an exact stock replacement sending unit or do you know?

 

yes it was

 

Since the problem occured after the sending unit replacement, that's the first place I'd check. Maybe the sock on the end of the fuel pump is restricted or something in that area?

 

I Am Having The Same Problem With A Friends Truck.03 But I Change 2 Injectors And Clean The Rest And It Started Messing Up,just Like Yours