2003 Ram 1500 lightning bolt

[WFTRAM]

I have a 2003 Dodge Ram 1500 5.7 hemi . I am trying to find a solution . The truck drives great and recently a lightning bolt appeared on the dash and of course it started to go into limp mode. As soon as I pulled over and restarted it was fine for a while. Then it does it again . I love my truck and I want to fix it . I have had the throttle changed out and did not work . Then I was told it was a vacuum leak and it was fixed but not resolved . Then it was a wire issue but could not find where exactly . Now I was told it is the PCM/ECM. I have been to several mechanics and just want a resolution . Any ideas .

 

[jws123]

Its usually the throttle body but check the wiring going to it and down by the gas pedal have you scanned it for codes?

 

[WFTRAM]

According to the mechanic he did not find any codes

 

[jws123]

According to the mechanic he did not find any codes

id put money on the throttle body its the most common reason for the light to come on. I would find another mechanic its almost never the PCM or you need to ask why they think its the PCM what soid diag proof do they have.

 

[WFTRAM]

I changed it with an OEM part and still not working. I wish they still made an original part .

 

[Recoil]

Hopefully it isn't your APPS.

 

[Recoil]

@WFTRAM - see this:

Replace your 03/04 APPS sensor for less than $100 and 2 hours time.

***DISCLAIMER*** everything you do to your truck is your responsibility, I have no liability if you follow what I did to fix my truck. Take it to a professional if you do not feel comfortable doing it yourself after reading through completely. ***DISCLAIMER*** Backstory time. So the infamous...

www.ramforum.com

 

[markabby]

The accelerator pedal sensor ?

 

[Recoil]

The accelerator pedal sensor ?

Yes, they are different on the '03 and early '04 with the Hemi.