2004 freestar problem, Pro-start CT3400
Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=90016
Printed Date: May 08, 2025 at 2:54 PM
Topic: 2004 freestar problem, Pro-start CT3400
Posted By: saskpuller
Subject: 2004 freestar problem, Pro-start CT3400
Date Posted: February 03, 2007 at 9:43 PM
Installing a Pro-start CT3400 and pkf3 into 04 freestar. Everything went as expected until go time. THe unit started fine, ran for roughly 20 seconds, shut down and re-started. Did this 3 times and then the RS shut down. It's not a security bypass thing because it does same thing with the key in the ignition. Am I missing something with the parklight circuit? Am I missing something with the arm/disarm? I totally baffled.
Replies:
Posted By: Twelvoltz
Date Posted: February 03, 2007 at 9:48 PM
Did you use tachometer monitoring or voltage sensing? This sounds like your system does not know the car is running.
Posted By: saskpuller
Date Posted: February 03, 2007 at 9:59 PM
Used a tach monitor. The RS realizes that the car is running or it wouldn't drop the starter out. I'm wondering if the module is NFG. Wouldn't be the first time a Pro Start module was bad.
Posted By: NowYaKnow
Date Posted: February 04, 2007 at 10:02 AM
Try it tachless and see if it's any different? What did you try in troubleshooting?
Mike
Posted By: dre187
Date Posted: February 04, 2007 at 10:16 AM
prostart doesn't have a tachless option unfortunatly. where'd you get the tach signal from?
Posted By: xghost
Date Posted: February 04, 2007 at 2:11 PM
Prostart just came out with there new modules. The ones with rs232 port. Little late if you ask me but the only thing i can tell you is that some of the older prostart modules have a "Tach Threshold" dip switch. You HAVE TO change it to HIGH instead of normal. If you dont then the car will die. I did one on a cav, same thing happening except mine died right away. Try to get your tach off an ignition module or coil not a fuel inj. Hope this helps.
Posted By: saskpuller
Date Posted: February 04, 2007 at 11:25 PM
I switched out the module today and nothing changed. I have taken the tach signal from the cam sensor. I see a problem that when the vehicle starts tach is at +/- 1100 and then after 15 sec it drops to around 780. That is when the car shuts off. I tried setting the tach at the 780 point. It took but still died at that point. I'm beginning to think it maybe a arm/disarm problem or something that I'm missing. This is the first Freestar that I've done. I tried changing the tach threshold to high with no change. It's only my sister's vehicle so not that big a deal but I'd rather not be wasting "free" time on it.
Posted By: NowYaKnow
Date Posted: February 04, 2007 at 11:29 PM
If it dies at that point the signal may be too low for the unit your using. Try going off an injector rather than the cam sensor and see what happens.
Mike
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