Hello everybody,

I have a 2005 Ram 1500 with the 5.7 On the first start of the day it starts just fine. After the engine reaches running temp and shut down, it is hard to restart. It does not shut itself off. After warmed up, when I try to start it will just crank forever, If I even touch the throttle it will fire right up. I don’t find this to be too big of an issue right now, but I have a feeling that if left alone it will get worse. So far I have checked all hoses and electrical connections under the hood. I have recently changed all the plugs and wires. (the problem existed before the plus were changed) New air filter, checked fuel pressure, it was at 60PSI. I am not the greatest when it comes to trouble shooting electrical issues, and would greatly appreciate any help that may be out there. Also I have no MIL or check engine light, whatever it is being referred to these days.

 

Was the Check Engine Light on before the problem started. I would definetely have that checked out. Buying your own OBD II cose reader isn't a bad idea either, or if you happen to have a programmer for your truck, many of those read and clear trouble codes as well.

 

I have only had the check engine light once since I bought the truck in 05. It was the EGR valve. I replaced it and all was good. That was about a year ago. Now I have the starting issue and no check engine light. This is confusing.

 

Check your TB.
The IAC motor may be messing up.

 

How do I check the throtle body other than replacing it? Is there a resistance value I can check for, or do I just replace it?

 

Oi.
What I meant by checking the throttle body is removing the air hat and seeing how dirty it is. A dirty TB also means a dirty IAC motor, which can do weird stuff, such as a hard start.

 

Got ya. I did clean the throtle body. It wasn't to bad. Am I abld to tear down the throtle body to clean the IAC motor and workings?

 

Update: I feel real stupid right now. I started to tear into the engine tonight after work just to see if I could find anything out of place. Come to find the #5 secondary sparkplug was loose. I guess that the funny angle that I was working with I didnt get it tight enough. So now it seems to run a hair better and starts up every time. Now everybody can bash on me and get a good laugh out of my stupidity. Thanks for the tips from those who gave them.

 

As for the IAC, yes, when you pull the TB, you can remove (you should) the IAC motor and clean the port on the TB and (CAREFULLY) clean the IAC motor.

As for the spark plug, eh, oh well. We all make mistakes. Did you pull any of the plugs to see what they looked like?

 

Whoops. As the saying goes, "Nothing can go wrong ... go wrong ... go wrong."