Abs module

[dsmspick]

Looking at running offset tires like on a marauder. With my stock abs module it will freak out. Can I swap a abs module from a marauder into my 02 crown Vic Sport. The marauder is an 03.

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[CrownVictorious]

just an idea, but couldnt you correct this with a handheld tuner?

[dsmspick]

I have the sct4 but don't know much about it. I come from the land of imports (dsm) and have the Vic as a daily. So I don't know if you can fix it with a handheld tuner.

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[fastblackmerc]

I think you mean traction control?

The wheel offset will not affect the ABS nor the traction control.

There needs to be a 3% - 5% difference in diameter between the front and rear tires to satisfy the traction control parameters.

Traction control is on on the 2004 Marauders.

[dsmspick]

I have traction control on my 02 Vic. As far as I know the abs module on the marauders is different because they come with offset tires from the factory, crown Vics did not, it is the same size tire all the way around. Traction control should not be affected. The abs might have a fit due to the different sized tires if I was to put them on there.

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[Turbov6Bryan]

He owns a 2002 cv sport. Those have traction control and since his car has the same size tires on it, he is worried if he goes with staggered tires, then the tc will light up like the 04 marauders do with wrong size tires.

Is there a solution to this vs pushing the tc button daily?

[RubberCtyRauder]

delete ABS..Someone on here, in Canada bought or made a ABS delete block for his Marauder. He has a built Lysholm supercharged engine?

[Turbov6Bryan]

delete ABS..Someone on here, in Canada bought or made a ABS delete block for his Marauder. He has a built Lysholm supercharged engine?

So swapping in the 03 abs module will not work?

Thank you for helping him out

[RubberCtyRauder]

I don't know exactly, don't believe anyone has tried it yet so until someone does it we may not know for sure. ABS delete worked for JoeBoomz here...post 67

http://www.mercurymarauder.net/forums/showthread.php?t=80465&page=5

[dsmspick]

Thanks turbov6bryan for helping clear things up. Thanks everyone else for the replies. Looks like we are just going to have to try it and see if anything happens. We'll talk more after work.

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[stevengerard]

Chris tried to swap out a same year GM ABS module for me, no luck, then tried to reprogram it no luck there either. I asked my local mechanic and he agreed that the 04 MM ABS module is specific to the ABS module with traction control.

[dsmspick]

So then I would need an abs module from an 04 marauder since I have abs and traction control?

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[stevengerard]

yes, you can still find them new occasionally - very expensive. Be patient and you can find one for a hundred or so used from a totaled 04. Supposedly there is a place that rebuilds these but they never returned my emails. Ultimately its only in snow or rain that you would really have to worry. I know rains a lot here in Chicago but knock on wood I've been ok

[stevengerard]

For those looking here is a great price on one for an early 03 no TC

http://www.ebay.com/itm/201687792967?_trksid=p2060353. m2763.l2649&ssPageName=STRK%3AMEBIDX%3AIT

[EMAS]

What you need is a non-traction control module from an 02 CV or GM. The 03 up module is different than the 02 down.

The ABS only system won't freak out with the staggered tires, only the ABS with traction control. I've ran staggered tires on a couple of ABS only Crown Vics specifically an 03 and 05.

[dsmspick]

Thank you so much emas! That helps out tremendously! Now those cv and GM that had no traction control did they have posi (Trac lock) rear ends?

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[RubberCtyRauder]

Only CVPI had the option for trac lok and option for traction control. Trac Lok never available for regular production CV, Sport, GM

[Logizyme]

Only CVPI had the option for trac lok and option for traction control. Trac Lok never available for regular production CV, Sport, GM

LOL wrong. HPP package civilian vics and GMQ's got 3.27 limited slip's throughout the years.

[Logizyme]

I am also very curious about this.

While a ABS functions will not be noticeably changed, one axle will activate premature and the other late, with severity increasing with inaccuracy of the sizes, serious issue no, but if your looking for the best performance of your ABS then you'll want it to be accurate. Lock up can be dangerous.

Traction control is the more noticeable issue. If the ratio of the rear tire diameter to front tire diameter is increased, ie your making the rear tires larger than you may only notice reduced effectiveness of traction control functions as it will only activate later, which for your non-staggered sizing going to larger rear tires will work pretty well. More problematic is when the Marauder staggered sizes is changed to smaller rear tires, or non-staggered sizes, traction control will activate prematurely, at less than 2.5% difference to non staggered it will activate when accelerating during a corner which is rather noticeable and can activate during heavier accelerations from a stop.

I'm considering switching to non-staggered wheels on my TC equipped 03 300B Marauder. Based on the description of operation and wiring diagrams I cannot confirm, but my suspicion is that all ABS and TC wheel size information is stored in the ABS module. Assuming the 03 vic and 03 Marauder share ABS part numbers then it would be all in programming. I will check Ford part numbers on Friday and have a better idea then. If that's the case I could use the VIN of a vic equipped with TC to program the ABS module and the car should be none the wiser for non-staggered tires, in theory. All ABS sensors are direct inputs to the ABS module, but the ABS does communicate though a CAN bus to the PCM for two reasons, for the PCM to signal that the acceleration is being pressed (for TC operation) and for the ABS to signal to the PCM to cut engine power. It is possible that I am wrong and that tire size information is stored in the PCM and info is sent across the CAN bus network to the ABS module.

[RubberCtyRauder]

LOL wrong. HPP package civilian vics and GMQ's got 3.27 limited slip's throughout the years.

wrong again,,they got open diffs in 3.27..no trak loc.

[Spectragod]

Only CVPI had the option for trac lok and option for traction control. Trac Lok never available for regular production CV, Sport, GM

^^^This^^^ is correct,


LOL wrong. HPP package civilian vics and GMQ's got 3.27 limited slip's throughout the years.

^^^very inaccurate^^^


wrong again,,they got open diffs in 3.27..no trak loc.

^^^Yep, I have owned 3 HPP's, 1 sport, numerous GM's, a bunch of civilian vics as well as police vics, The only ones with trac loc were the police cars, with the exception of the ones that I added it to, had a Marauder or 2 as well.