Bad PCM?
#1
Bad PCM?
Hello,
This is my first post. I have had my Idle Air Control in my 97 1500 replaced 2 times and I still have the same problem of stalling when I come to a stop. Now, my mechanic thinks it may be a bad PCM. My questions are, do you think it could be bad, and what's involved in replacing a PCM? If it is a bad PCM, I'm thinking about replacing it myself.
Thanks for any help,
Tom
This is my first post. I have had my Idle Air Control in my 97 1500 replaced 2 times and I still have the same problem of stalling when I come to a stop. Now, my mechanic thinks it may be a bad PCM. My questions are, do you think it could be bad, and what's involved in replacing a PCM? If it is a bad PCM, I'm thinking about replacing it myself.
Thanks for any help,
Tom
#2
RE: Bad PCM?
Welcome to DF !!
Pop your hood and on the passenger side on the firewall is the PCM , i had the same problems as you with the IAC , turns out the pcm was bad... There easy to replace , just rember to disconect the battery pos and neg so there is no charge and handle the new pcm with care..your pcm mite have a black cover on it , that just pops off 3 screws and take the harness off( watch how the harness goes off and on) dont cross them...
Pop your hood and on the passenger side on the firewall is the PCM , i had the same problems as you with the IAC , turns out the pcm was bad... There easy to replace , just rember to disconect the battery pos and neg so there is no charge and handle the new pcm with care..your pcm mite have a black cover on it , that just pops off 3 screws and take the harness off( watch how the harness goes off and on) dont cross them...
#3
#6
RE: Bad PCM?
When you replace the IAC you are supposed to set the idle air counts. Supposedly, the only way to do this accurately is with a DRB# or a Snap-on scanner.
I did it manually and it seemed to work fine :
http://www.bionicdodge.com/Download/...a%20Magnum.pdf
I did it manually and it seemed to work fine :
http://www.bionicdodge.com/Download/...a%20Magnum.pdf
#7
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#8
#9
RE: Bad PCM?
So basically if I ever replace the IAC I should just go straight to the dealer instead of the parts stores? I'm getting to the point now where I'm getting fed up with parts stores. Even though the dealer seems to be a lot more expensive it seems to be worth it on a lot of stuff.
#10
RE: Bad PCM?
ORIGINAL: hometheaterman
So basically if I ever replace the IAC I should just go straight to the dealer instead of the parts stores? I'm getting to the point now where I'm getting fed up with parts stores. Even though the dealer seems to be a lot more expensive it seems to be worth it on a lot of stuff.
So basically if I ever replace the IAC I should just go straight to the dealer instead of the parts stores? I'm getting to the point now where I'm getting fed up with parts stores. Even though the dealer seems to be a lot more expensive it seems to be worth it on a lot of stuff.