Cruise control system compatibility. October 12, 2005, 10:35:33 AM Just wondering about the forward/backwards compatibility of the cruise control systems in our cars. More specifically would a unit from an 88 Cougar 3.8 work in a 87 T-bird 5.0? Quote Selected
Cruise control system compatibility. Reply #1 – October 12, 2005, 12:50:06 PM I'm fairly certain the cable is a different length, but the servo should be the same. You can get a cable from a 5.0 Mustang, or Mark VII too. Quote Selected
Cruise control system compatibility. Reply #2 – October 12, 2005, 03:15:05 PM I'm going on the premise that the cable is fine (I hope), and that the actuall solenoid is what's bad. Quote Selected
Cruise control system compatibility. Reply #3 – October 12, 2005, 04:39:38 PM The servo units are all the same, I believe. The cruise computers also should interchange. The only things different between cars are the cable lengths.All EEC-V processors have the cruise control function built in; there is no separate standalone computer for it. So the tap up/down feature that newer cars have wouldn't work for our cars. And diagnosing a problem is much, much easier on newer cars. Otherwise we have what newer cars have. Quote Selected
Cruise control system compatibility. Reply #4 – October 12, 2005, 06:54:20 PM Quote from: EricCoolCatsThe servo units are all the same, I believe. The cruise computers also should interchange. The only things different between cars are the cable lengths.All EEC-V processors have the cruise control function built in; there is no separate standalone computer for it. So the tap up/down feature that newer cars have wouldn't work for our cars. And diagnosing a problem is much, much easier on newer cars. Otherwise we have what newer cars have.Ok, so in a nutshell, not counting the cable to where-ever, it would work? Quote Selected
Cruise control system compatibility. Reply #5 – October 13, 2005, 01:29:09 AM Hmm I was under the impression there was a Cruise controll brain box (for lack of a better term). What about pre computer controlled fords? QuoteAll EEC-V processors have the cruise control function built in; Do you mean EEC-IV? Thats what his car has. Quote Selected
Cruise control system compatibility. Reply #6 – October 13, 2005, 02:45:14 AM he is talking about newer for computers in general. Basically that all ford parts are the same exept Quote Selected
Cruise control system compatibility. Reply #7 – October 13, 2005, 09:30:28 AM The EEC-V on newer cars is technically a PCM (powertrain control module) in that all processors for the vehicle are integrated into one: engine, transmission, ABS and cruise control.On EEC-IV cars (and EEC-III for that matter), the computer is an ECM (engine control module) because that's all it controls. Everything else has its own brain (ABS on the 1987-88 Turbo Coupes, for example).The cruise control system has its own separate brain then. It's right above your left foot when you're driving the car; remove the insulation panel and you'll see it. Some housings are black, some are a bright yellow. I have personally never found a difference between any cruise modules from 1984-88. I've swapped servos and cruise computers in many different combinations and all seem to work just fine. Earlier cruise control systems may or may not use the same setup we have; not certain about that.So to answer your question, aside from cables, yes, they are the same and you can use any servo from 1983-88 in your car. Quote Selected
Cruise control system compatibility. Reply #8 – October 13, 2005, 09:43:19 AM Cool, thanks for the info! Quote Selected
Cruise control system compatibility. Reply #9 – October 13, 2005, 09:49:04 AM while on topic, how hard is a cable swap? Quote Selected
Cruise control system compatibility. Reply #10 – October 13, 2005, 09:57:54 AM Quote from: Tbird232ciwhile on topic, how hard is a cable swap?If you can get your inner fender off, it's pretty easy.:D Quote Selected
Cruise control system compatibility. Reply #11 – October 13, 2005, 01:26:21 PM Quote from: Tbird232ciwhile on topic, how hard is a cable swap? Hopefully, if my cable comes from Vinnie, I'll let you know over the weekend. I know the inner fender doesn't look like much fun. Quote Selected
Cruise control system compatibility. Reply #12 – October 13, 2005, 01:30:38 PM Psssh....it's nothing. A few screws, a few plastic pins and it literally falls out. Helps to have the car up on jack stands.In 1999 when the new engine went in, I relocated the main harness on the driver's side of the engine bay to the inner fender area. If anything in that harness goes bad, or a connector comes loose, or one of the inline fuses pops....up goes the car, down goes the inner fender. Pain in the ass but it sure cleaned up the engine bay. :) Quote Selected
Cruise control system compatibility. Reply #13 – October 13, 2005, 02:54:18 PM From what I can find, the Module should be the same on 84-88 models and the Servo should be the same on 87-88 models. And from the attached picture I would think the 3.8 cable would be just as long or longer than the 5.0. Quote Selected
Cruise control system compatibility. Reply #14 – October 14, 2005, 09:31:08 AM There are actually two different modules, but they work for one another. One is for the 2.3 turbo/3.8 and the other is calibrated for the 5.0. Found this out after I reconnected my cruse. When I would activate or hit resume, it was like almost stomping it to the floor with the original 2.3 module... Switched to the 5.0 module and now get a much more subdued response.That said... the modules are actually the same, but have a calibration pot inside that regulates just how agressive the throttle responce is. Quote Selected
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