I am new to this forum. My son bought a 2004 crossfire 3.2L manual almost 2 years ago with 70K mile.
Car is great no issue we both love, it is in perfect working condition inside and out.
Last March (2019) we had the typical crank sensor issue, when hot the car will crank but not start, if we waited a little and had the car cool down it will re-start. I replaced the crack sensor (not sure if it was a bosh) and the problem was solved. Last September the car all of a sudden will not start. Took to a local(closest) mechanic and 200$ later he said it should be the PCM. We took the car to the local Chrysler (what a mistake) and for just 500$ :-( they replaced the clutch safety switch and then told us that also the PCM/SKREEM/KEYS need to be replaced. He said this is our policy yet replacing the pcm should suffice if you do yourself.
After searching on line I found this is ecu company, they have multiple website
http://www.ecuwarehouse.com
Crossfire ECU Control Units And Crossfire ECM Repair
(please note, I now dis-trust this company, i discourage sending money to them)
they said they can replace my not working pcm with a remanufactured one and will be able to fix it even if the memory info may not be availble, they mention they have all sofware. It costs me $750+$90
When the pcm was back i installed in the car and now the car most time starts, never the first try, often the 3rd or 4th time and not rarelly
it does not start at all, means it stop cranking, dashboard light are on just does not crank.
When this happens the only way to restart the car is disconnecting the negative for a couple of minutes.
I have contacted this ecu company multiple time and they do not pick up the phone, always voice mail and no call back. sent them emails no reply.
Do yourself a favor do NOT send them your money.
At this point i found this excellent forum and i have spend many hours reading.
I have verified (reading the forum) that the RCM (relay control Module) is working, infact two of the relays switch on and a third one flip on for a second or two then off.
I have also checked the soldering and they looks good. I have re-soldered the 3 on the corner just in case. The problem persist.
I have ordered on amazon a new RCM and replaced anyway. This has not solved the issue.
The battery is 9 months old and fully recharged before the PCM was installed.
I have checked the battery cable, no rust they are in good condition
Remote battery has been replaced.
I have observed that once the car starts, if I make it run for a few minutes, and then turn it off I can now turn it on and off as many times as I want, car starts promptly as expected. I have tryied 4,5 times in a row and it behaves as you would expect. When the car is cold then the issue mentioned above is back
This is confusing me. From one side it seems like this is not a SKREEM issue since the car starts and does not stop cranking after 2 or 3 times, (most times).
Yet from the other side, every time i start the car it is like the cranck get disconnected afted a very short time, one second or less, it is not that i can make it crank for 2 or 3 seconds. And if the car does not start after trying 2/3/4/5 times or so, at some point it stop cranking and only disconnecting the negative helps (this seems in line with a SKREEM issue)
It could be that the SKREEM is dying yet it sometimes still works.
The consistent fact is thal all the time the engine (PCM) is sending a signal to stop the crank from keep going even when the car may still need a little longer crank time. either the SKREEM is saying stop it or the car think that cranking speed is enough to start and it is protecting the gears.
I have read about MDP company and I will not mind sending them SKREEM/PCM and Keys, yet it is not fully clear to me if this is a SKREEM issue
or something else is at play.
Any suggestion will be appretiate.
Thanks.
Salvo