Just had new valve cover gaskets installed and new light bulb, got unit back to home but next day had a no start, tried jumping no luck. Replaced with new battery fan comes but ZERO turnover not even clicking sound.
towed to dealer and after a week get the call to replace PCM BUT they cannot find one ANYWHERE, I read numerous articles about RCM and adding sodder to 3 points on the board.
Is it really that simple of a fix ?
I suggested to Chrysler dlr to try it and even sent You Tube with no reply .
Should they be looking at something else ?

 

If your relays on the RCM are ok, in many cases yes, it's that simple to fix. I fixed mine a few weeks ago.

 

1) Did the starter engage or not? "No start" is too vague, tell us what we are working on.
2) Why did you take it to a damn dealer? You'd be better off taking it to Joe's garage.

There is nothing wrong with the PCM, if the starter won't engage, I'd bet it's the solder on the RCM. If the starter is engaging, it could be any number of things - but it is not the PCM.
Get the car home from the dealer TODAY - before, like so many others, the car is worse off than it is now.

Then read my sigline - there is a reason we take such a strong stand towards dealers.

EDIT: So the engine fan comes on full speed when you turn the key "ON"? That means the engine control relay output from the RCM is missing, which means the PCM is not powered up.
Fix or replace the RCM. That is, if the dealer has not made things worse (which is, all too often, the case.)

 

No engagement of the engine at all, the fan came on but no crank no clicking sound what so ever. You are correct about getting back in driveway which I intend on doing Friday. I have only owned the car for 1 yr 2007 convertible, I only towed back to dlr as they had just replaced the head gaskets a day earlier and I suspected they may have messed something up. As it turns out the $800 repair was actually trans pan plug needing tightening as it was still leaking . I will hit the forum page for any furher repairs in the future as the gracious help from all on this site is quite outstanding ........................Keith

 

Lake Erie, send your RCM to tighed1 You are describing a typical RCM problem.

READ this thread and see post #3 CLICK

 

When you get a chance use the search box in the upper right corner and use the google option to search for, leaking transmission and valve cover leak.
Very few forum members have found it necessary to replace the "head gaskets". Perhaps you mis-spoke as $800 for a head gasket replacement seems rather inexpensive.
Welcome to the forum and enjoy your car, but be prepared to do a lot of the maintenance yourself; It will save you a lot of frustration and money.

 

So replaced with new RCM today I got from Rob at Wings and nothing
fan comes on so dealer tells me I need PCM when I called him
really at loss now as I am told PCM are no longer available so am I looking at putting in new engine at this point
any help would be appreciated

 

Put new RCM in today I had shipped from Wings
no luck still same deal fan comes on but zero crank

 

Hmmmmmmmmmmmmmmmmmmmm. ENGINE fan comes on when you turn key to on but it won't engage the starter?
That usually means the PCM/ECU is not fully powered up, this is usually caused by the Engine Control Relay output of the RCM not being there.

Grab the RCM, check every fuse. Two fuses, numbers 2 and 3, are fused outputs of the EC relay. Make sure they are not blown.
Then, I'd pry the RCM open and reconnect it to all plugs - have a helper turn the key to ON. See which relays activate, three should activate, then in about 20 seconds, one relay (the fuel pump relay) will relax.
If you don't get three relays to activate, THAT is your problem. Given it's a new RCM, that would implicate wiring from the key switch to the RCM. But I've not seen that happen before.

ALSO, keep in mind that a weak battery can cause this. If the ECM receives low voltage (not sure how low, around 10.5 I think) it won't fully power up and you get this indication. Swapping batteries from another car will result in the car starting, if it's the battery.

Also, STOP CALLING THE DEALER, you will never get the car going if you rely on a dealer. They will lead you right down the primrose path. Imagine paying $1600 for an ECM and it not fixing anything - it's happened a lot of times before. You cannot condemn the ECM unless you have PROVEN that all inputs to the ECM are good and I doubt they've done that.

 

Just installed new RCM from Wings as everyone agreed that would fix the no start but NOPE
Tech says I need PCM but Chrysler does not stock them any longer
As I have mentioned in other threads I had engine fan coming on but no crank or any engine starting noise at all
Brand new battery
its 2006 convertible Limited 44,000 miles
2 gaskets were just replace do to small leak but otherwise the car has been mint

 

You know not what you ask! You are headed to major trouble if you insist on getting a Powertrain Control Module before finding the root cause of your no start issue. A PCM must be programed after installation to sync with the anti theft system. 95% of Chrysler Dealers can not do that because their new diagnostic tool is not fully compatible with the old system. You are just asking for trouble and major expenses.

I strongly suggest you get your car diagnosed at an independent garage that specialize in European cars. You really need to get it scanned by digging into the Mercedes codes. Remember that your Crossfire is a Mercedes SLK 320 with an outer skin by Chrysler design.
Have you tested the starting circuit? Have you checked all the engine grounds? Have you checked any fuses? Those are all simple things that you can do. So much more to a non start issue than going for the PCM. In the other thread you are talking about replacing the engine. WHAT the !!!!. You really know not what you ask! You need help and your best bet is to get your car to an independent garage that knows how to work on Mercedes automobiles. Wish we could help more but there is so much being lost in the lack of understanding as to meaning of words in reference to this car. Good luck.

 

Yeah not sure expressing myself correctly as I am by no means a mechanic, I try you tubing where I can and do enjoy fixing things on my own but this is way outside my patience level. The car is at a Chrysler dlr and the service mgr is a god friend and he is doing everything he can even getting on the line to Rob from Wings about getting the RCM delivered to him which as I mentioned we installed but still no luck.. I called mecedes dlr and the mgr there told me " goodluck" Not very warm and comfy response at all. The unit is in Windsor Ontario and if you know of any independents close by or anywhere in Ontario I am happy to have it towed there in fact if border opens I would tow to someone in Michigan. I really do love the car and want to get this resolved EVEN if it means getting re built powertrain
I did send him your suggestions re trouble shooting everything else and will keep you posted as I really do respect all the help form everyone on this site ...............K

 

Why did you start ANOTHER thread? This is no way to get help with a tech problem, you are making it hard for those of us trying to help you.
You DO NOT have a bad ECU, try going back to your other thread and responding to my post.

I know it's hard owning a car that no one supports, but going to a dealer is NOT the way to go. READ the posts and threads on this forum, virtually NO dealers have EVER got a Crossfire running in the eleven years I've been on this forum.

My sigline is NOT an attempt at comedy, you are learning why I get so pissed off when someone takes a Crossfire to a stupid-assed, incompetent, untrained, dishonest dealer.
(Which is ALL new car dealers, not just Chrysler dealers.)

Just sell the damn car for parts and be done with it.

 

2 threads on same subject have been merged into this original one

"Looking for PCM" and "No Start"

 

How close is to Crossfire Paul are you? EDIT: Wait, I see you are in Windsor. What is the border crossing protocols these days?

 

Finally after having a friend Tom Mallot retired Chrysler specialist tech diagnose the car he determined it was ECU
so sent to Rob at Needs Wings along with Sckreem and that was that ,new parts in car and she fired right up

 

Thanks for listing the solution, many do not. It may help others diagnose their issues.

 

it is very simple and I have an extra one if you would like to purchase it, send me a fair offer.