hi guys , thanks for the add to your group. i have a 2004 crossfire coup with the n/a 3.2 , auto. i bought this car from a former chrysler execuative in mexico city, at the time it had 12,000 km. the original owner had the car parked in his garage for over 15 years without being driven. he had started it up every few months and allowed it to warm up , then back under its cover it went. He had grown too large to fit in the car....thus he stopped driving it . In order to restore it to road worthy condition i replaced the following...new fuel pump, fuel filter, battery, altenator, serpentine belt, all fluids, all rotors and pads, new tires, reglued the headliner as it had fallen due to excessive high temperatures. finally i have loved the car for the last two years, only putting 4,000 km additional on the car. much to my surprise the other week , after starting it i heard the fan come on at a very high speed, when i turned the car off it would only crank twice , then died. i removed the control module relay and resoldered the connections...to no avail. the car has a no crank , no start. when trying to start the three middle relays hold in, but no crank. the horn and air pump relays work. i used my power probe to acctivate the starter and it works fine. i tried to start activating the starter manually with the ignition key in the on position, which didnt work. i retried to resolder the control module relay , didnt see and cracks on any other connections. checked all wires going to the control module relay for cracks or obvious damage , none seen. What am i missing ?? any help is appreciated as my beauty is just sitting there looking sad.

 

You may have a SKREEM problem. Disconnect the battery and wait about one minute. Reconnect the battery and try to start the car. If it starts and dies after just a second of running twice and then refuses to turn over/ crank again the SKREEM has gone bad. Contact Needswings or Mercedes Swap shop for repairs. More info is available using the search box in upper right corner of the forum and the google option.

 

Credit DJ Tighed

 

first go to the new post section ask your question,,
but to help you out. replace your RCM and drive again. electronic geniuses have tried to repair the RCM with NO LUCK
go to the link below and send your old RCM to tighted1 he will fix it then U DRIVE

https://www.crossfireforum.org/forum...-no-start.html

 

deleted

 

I think guessing at a problem and recommending a purchase before testing is not helpful.
My suggestion in post #2 is simple and cost nothing.
The original poster is in Mexico. Sending and receiving parts may not be simple or easy for him.
The OP should also leave the key in the on position after attempting to start the car and see if the fan runs up to high speed.
The OP stated "after starting it i heard the fan come on at a very high speed" and "when cranking the three middle relays hold in".
Distinguishing between the RCM and the SKREEM is most important.

Hopefully he will re-join this thread.

 

You're correct zip439.
I saw the fan speed comment and jumped the gun.
I've deleted my post.

 

thanks for the advice . I followed your advice and after reconnecting the battery...still the same..no crank no start. I hear the fuel pump activate, none of the malfunction indicator lights come on, except for the airbag indicator light .

 

I just checked and they do stay closed with the key in the on position.

 

I'm assuming you have a very good battery.
So I understand that you turned the key to start the car and nothing happened, the car did not try to start, it did not even turn the starter at all on the first attempt.
With all the other symptoms It is pointing at the RCM or the pulse module. They are the most common problems, however there are a number of other issue that could be a problem. Let us try a couple more things so we can be a bit more sure of the problem.
1. Try to start the car again, but just relax the key to the next position just like the car has started and let the key remain there. Do not twist the key to off. Let the key on for at least a minute and see if the radiator cooling fan comes up to high speed. (You mentioned that in your first post). If the speed of the fan is really fast then the RCM engine control relay is bad. It may be closed but could still be bad and not allowing current to flow or you could have bad fuses on top of the RCM. Have you checked all those fuses? Have you checked all the fuses under the hood in the fuse box? Also look at the box on the instrument cluster where you should see a P for park. If that spot is just a black box the traction relay in the RCM is not powering the transmission control module and thus the car won't start.
Many of us have two RCM because they are a common failure so we carry an extra in the glove box as a spare. You can purchase them from many suppliers. The Mercedes number is 170 545 03 05 but another less expensive module that is the same thing is a Standard Motor Products item RY 1562; either way they cost new about $160. Then take your used and send it to tighed1 (a member here on the forum) who will repair your RCM and mail it back to you. ( he is in Arizona) email him at tighed1@hotmail.com Having a know good RCM is really important when correcting a no start problem. Do not buy a used one from ebay.
2. There is a pulse module under the fuses inside the main fuse box under the hood. The pulse module has two relays inside and one of them allows power to the starter. To get to the pulse module you must lift the tray with all the fuses on it up and the pulse module will be under that tray. It looks like this pulse module. when opened. With the key turned to on force the starter relay closed that should get the starter to turn over. If that relay isn't closing when you turn the key to start your pulse module is bad or you have a wiring problem. Use a volt/ohm meter to be certain.

Service manuals for the Crossfire are available for free on this website click here for a link to download the documentation collection

At the bottom of the windshield there is a black plastic cowl where the anti-theft siren is located. If you push the red panic button on the FOB and hold it for a couple seconds the siren should sound loud. If the siren does not sound open the cowl (it is easiest if you remove the windshield wipers) and disconnect the siren. The siren has internal batteries that leak and messes up the anti-theft system. Best to get that out of the way when having starting problems. You can drive the car fine without the siren. Mine has been disconnected for at least seven years.

Please use the search box in the upper right corner of the forum for more information. Click on threads and a google option opens. Use the google option as it works best.

Good Luck

 

Does anyone rebuild Pulse Modules or is there a source for them? Anything with relays can wear out.