2003 dodge ram 2500 5.7
 

I have a dodge ram 2500 5.7 changed everything pcm throttle body all sensor map sensor. But truck still don't idle correctly and and only stay running when foot on pedal checked fuel pressure its fine. Any help pls and changed cat to

360 Magnaum ? What codes are you getting ?? That is the first place to start..

I am with Lynn..... Why did we change all this stuff without pulling codes first ???

I get throttle body code .which I changed. Map sensor which I changed crank sensor which we changed and and getting key swipe code now after putting in new computer

Everything in side the truck functions ok?
And all the Fuses are good in the power distribution box under the hood?

We need to make sure you dont have a communication error when plugged into the ALDL Connector..... That will have you chasing your tail for sure.

Also Can read if any of the drive cycles have been met?????

Post up the Codes..... I'm looking for one,,, But I'm not going to tell you what it is......lol

I called pcm place were I got it they put wrong 8 digit number at end of my vin number hopefully that's it will no Tuesday ty will let no

Keep us posted.... :)

Nope not.problem we have no idea fustrating

Put new pcm in. With right vin code and getting lighting bolt again and no codes can't drive to get codes

- check the grounds - all of them, make sure everything has ground.

Going back to your first post, I would look for a idle air control valve, these will stick closed not giving you an idle and not setting off a light/code.

The control valve is in the throttle body which is brand new ty

Ok.... Thats fine...... But do you have Communication from the ALDL to your scan tool? If not your fuse my be blown out in the distribution center under the hood...... The Black one should be the I.O.D. Fuse.... One of the yellows is Air Bags. The other one will run the B.C.M. One of those if blown will cause you lots of problems... Check and make sure thay are good.....

But we have to have communication to your scan tool before you can even get started....

One other thing..... It does have a good battery and alternator?

Yes just bought a new battery and alternate is good

Try to get some of the "drive cycle" done.... That way the PCM knows whats going on....

Can't really drive truck in limp mode and stalling

Your running out of options.

OK....How can we help you ?????

Have no idea just frustrating

Sound like this?

Yes exactly like that

Pull the Valve cover and take a peek.... :)

Ty racer we found problem multiple spring thing broken husband replacing them under valve cover

You welcome.... Hope this cures the problem or at least most of it.....
Keep us posted.... :)

Truck running ty ty tyvm

We r having same problem after 4 mon ths they were fine now doing idle ruff again
 

Having Sam problem changed springs 4 months ago and ran fine and now it's doing again

Ruff idle
 

It has ruff idle engine goes up and down

Should have changed all of them, Get a good set from SummitRacing.com