need help with 03 Ram

[Doogster]

I have an 03 Ram, 4.7l. Starts very hard....about 30 seconds of turning over before it starts. Idles fine, but cuts out at about 3400 rpm.
Diagnostics said it needed a cam shaft sensor...which I replaced. Also replaced the crank shaft position sensor, as well as the fuel pump.

Anyone with any ideas as to what's wrong?

Thanks!

 

[waynes72dart]

injectors stuck closed , clogged fuel filter , maybe the timing jumped a tooth or two on the cams?

 

[BadAss71]

Kinda sounds like symptoms of a MAP sensor to me. Do you have access to a scanner? One that you can watch live data while cranking?

 

[Doogster]

injectors stuck closed , clogged fuel filter , maybe the timing jumped a tooth or two on the cams?

I was thinking injectors....have dumped lots of injector cleaner in to no avail. hoping it's not the fuel filter because they are such a pain to replace.

Thanks.

 

[Doogster]

Kinda sounds like symptoms of a MAP sensor to me. Do you have access to a scanner? One that you can watch live data while cranking?

Thanks....will try that. It's my daughter's boyfriend's truck....he's getting pretty frustrated with it.