02 4.7 issue

[Notthatlow]

Im getting ready to trade off my quad for a 02 4.7 that's having issues turning over. From what he has said it died on them while it was driving down the road, and now it turns over just fine it just wont start. I was just wondering if these motors have any normal issues from what ive seen the crank/cam position sensors tend to go bad is there any other things to look at?

 

[tassolake]

I have a similar problem, I have a new to me 2003 Dodge Ram 1500 with the 4.7L. it had the cam positioning sensor error, I replace the cam positioning sensor, the fuel pump, Throttle positioning sensor, New battery, cleaned the idle control valve, fixed the grounds and confirmed vacuum (18in hg at idle). The truck still has difficulty starting and when it does it stalls within a few minutes. When starting it appears to fire immediately but won't start, after a dozen attempts it will start and then idles very nicely, after a few minutes it then stalls and is difficult to restart. Of course there are no codes on the PCM. I even verified the power steering reservoir was full (since that can influence idle).

I am stumped and about to purchase the MAP and Intake temperature sensor, anything I could have missed or need to check? I've never owned a dodge before, but my neighbor traded me this basket case for a case of beer. (Did I over pay?).

 

[Joe w.]

I have a similar problem, I have a new to me 2003 Dodge Ram 1500 with the 4.7L. it had the cam positioning sensor error, I replace the cam positioning sensor, the fuel pump, Throttle positioning sensor, New battery, cleaned the idle control valve, fixed the grounds and confirmed vacuum (18in hg at idle). The truck still has difficulty starting and when it does it stalls within a few minutes. When starting it appears to fire immediately but won't start, after a dozen attempts it will start and then idles very nicely, after a few minutes it then stalls and is difficult to restart. Of course there are no codes on the PCM. I even verified the power steering reservoir was full (since that can influence idle).

I am stumped and about to purchase the MAP and Intake temperature sensor, anything I could have missed or need to check? I've never owned a dodge before, but my neighbor traded me this basket case for a case of beer. (Did I over pay?).

Does it start good when engine is warm? I'm having same problem with my 94 eagle talon but after temp hand moves it starts fine i'm thinking my problem is a temperature sensor just put new fuel pump on and have proper fuel pressure now didn't before.

 

[xb1230]

Have you done a compression test?

I would pop open the valve covers, and have a look at the valves, lash adjusters and timing set to see if the chains are too loose.

They are very sensitive to heat. If the previous owner was not meticulous on maintenance, and had it overheat, the compression test may reveal some interesting things... (head gasket...)

You could also have a look at the spark plugs and see in what condition they are in.

Have you done a fuel pressure test?
I would also check if the injectors are opening to release fuel in the cylinders...

These are only a few thoughts...

 

[Notthatlow]

Have you done a compression test?

I would pop open the valve covers, and have a look at the valves, lash adjusters and timing set to see if the chains are too loose.

They are very sensitive to heat. If the previous owner was not meticulous on maintenance, and had it overheat, the compression test may reveal some interesting things... (head gasket...)

You could also have a look at the spark plugs and see in what condition they are in.

Have you done a fuel pressure test?
I would also check if the injectors are opening to release fuel in the cylinders...

These are only a few thoughts...

The one I traded for has either a blown head gasket or warpped heads so I did some digging around, and found a dodge salvage that has motors plus accessories for only 250$. So now my question is what year motors can I swap into my 02 without having to change a bunch of stuff?