Electric Fan, Soft Start, Contour Upgrade

revhead347

Apparently my ex-husband made that mistake.
15 Year Member
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So I have decided to finally get around to putting a better fan on my car, which means a Contour fan. I've been reading quite a bit tonight, but it would appear this can be done with the factory CCRM. Does anyone know of a soft start mechanism that can be used that is not part of a dedicated fan controller.

Kurt
 
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KRUISR

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Use the Contour low speed as main fan speed, relay for low speed triggered/controlled/turned on by the CCRM. Wire high speed relay to a toggle for backup if needed.

By using low speed there is not a large load spike. To be honest I can barely hear low speed running when the car is off.
 

revhead347

Apparently my ex-husband made that mistake.
15 Year Member
Jun 14, 2004
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Acworth, GA
Use the Contour low speed as main fan speed, relay for low speed triggered/controlled/turned on by the CCRM. Wire high speed relay to a toggle for backup if needed.

By using low speed there is not a large load spike. To be honest I can barely hear low speed running when the car is off.
Honest question here. The CCRM has a low speed, and high speed circuit already in it. Why not just use that functionality? Naturally the temperature rise will trigger the low speed first, which will buffer the spike when the high speed comes on. As hot as this car runs, I'm pretty sure I'm going to need high speed very frequently.

Kurt
 

KRUISR

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I'm not familiar of what functions the CCRM has. I know it does a few things and they can corrode and fail.

Now that I think about it, it would have high and low for the factory e-fan. I am not sure how much softer of a low speed start you are trying to achieve (or would even need).

If the factory fan did not have external relays I would still suggest a pair of 70 Amp relays, triggered by the CCRM. One relay for high, one for low.
 
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revhead347

Apparently my ex-husband made that mistake.
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I'm not familiar of what functions the CCRM has. I know it does a few things and they can corrode and fail.

Now that I think about it, it would have high and low for the factory e-fan. I am not sure how much softer of a low speed start you are trying to achieve (or would even need).

If the factory fan did not have external relays I would still suggest a pair of 70 Amp relays, triggered by the CCRM. One relay for high, one for low.
I might go that route (using the CCRM to trigger a second set of relays). It's probably the safest bet anyway. I was just thinking of keeping it simple, and reducing the number of relays that could fail. A lot of these independent fan controllers have a soft start feature that keeps the fan from spike loading to 70 amps when the fan kicks on. I was hoping I could get the soft start with out the fan controller as the SN95 ECM already has fan control. It would keep a lot of load off the CCRM.

Kurt
 

KRUISR

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A lot of these independent fan controllers have a soft start feature that keeps the fan from spike loading to 70 amps when the fan kicks on.
I don't get it. Everyone seems afraid of the Contour fans starting (with the potential of a power spike). Think of it this way... ECU (or a controller) firing a relay rated at 70 amps is exactly how the Contour/Mystique/Cougar did it from the factory. They made 100's of thousands of these cars, ALL using this system for the fans (that we are trying to use). I have NEVER heard of a Contour having issues with the relays or fans. Just use the factory sized wires, relays and you will not have an issue.

Contours used a 130 amp alternator as well. I have personally owned 3 Contours for a total of over 750,000 kms and NEVER a fan/relay/fan wiring issue or power spike issue. Don't fear how the factory did it - why re-invent the wheel. A soft start is not needed.
 

revhead347

Apparently my ex-husband made that mistake.
15 Year Member
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I don't get it. Everyone seems afraid of the Contour fans starting (with the potential of a power spike). Think of it this way... ECU (or a controller) firing a relay rated at 70 amps is exactly how the Contour/Mystique/Cougar did it from the factory. They made 100's of thousands of these cars, ALL using this system for the fans (that we are trying to use). I have NEVER heard of a Contour having issues with the relays or fans. Just use the factory sized wires, relays and you will not have an issue.

Contours used a 130 amp alternator as well. I have personally owned 3 Contours for a total of over 750,000 kms and NEVER a fan/relay/fan wiring issue or power spike issue. Don't fear how the factory did it - why re-invent the wheel. A soft start is not needed.
You and I are of the same mindset. I am just proceeding with an abundance of caution. I am pretty confident that if I plug the factory CCRM into the fan, it will work fine. I am fairly certain that Ford maintained the same engineering standards between 95' and 00'. If anything, I might have to install a slow blow fuse on the circuit to handle the spike.

Kurt
 

KRUISR

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What is the factory fusing on your year (as you did have factory e-fan)? Contour uses a 60 fuse to power both relays.

IMG_0811.JPG IMG_0812.JPG
Factory Contour relay portion of engine bay fuse box. Middle of the 3 mega fuses is the 60 used for the fans. The other 2 are now spares.

Contour Fans Schematic with AC.jpg

How I wired my systems (both my Mustang and F150). Wire sizes are factory Contour sizes.
 
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revhead347

Apparently my ex-husband made that mistake.
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What is the factory fusing on your year (as you did have factory e-fan)? Contour uses a 60 fuse to power both relays.

IMG_0811.JPG IMG_0812.JPG
Factory Contour relay portion of engine bay fuse box. Middle of the 3 mega fuses is the 60 used for the fans. The other 2 are now spares.

Contour Fans Schematic with AC.jpg

How I wired my systems (both my Mustang and F150). Wire sizes are factory Contour sizes.
I'll have to look into that. Thank you for replying. My bathroom tub started leaking last week, and this instantly got thrown on the back burner. I'm about 7 days into a $10k bathroom remodel, so it might be awhile.

Thanks,
Kurt
 

revhead347

Apparently my ex-husband made that mistake.
15 Year Member
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Acworth, GA
All that money wasted for a room so you can 'give a :poo:'.
:rlaugh:
No kidding man. This bathroom is a total time and money suck. Plus everything is through the roof price wise, and on back order. Pretty sure if you ordered a blow job right now, it would take 2 weeks to get it.

Kurt
 
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96pushrod

I think they're a little easier to get off
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Hey Kurt the stock 94+ fan isn’t cutting it? I see no temp issues with my car and we see the same weather as we live somewhat close
 

revhead347

Apparently my ex-husband made that mistake.
15 Year Member
Jun 14, 2004
8,793
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Acworth, GA
Hey Kurt the stock 94+ fan isn’t cutting it? I see no temp issues with my car and we see the same weather as we live somewhat close
Sorry, fricken bathroom has had me tied up. Found a second water leak, gutters are leaking into the soffets. So it's new gutter time too.

The car has always had temperature creep in traffic. I would say it's actually hotter where you live. If I have airflow it will stay dead steady around 190 degrees. Too many stop lights, and it starts creeping north of 220. I've heard the 98' and older AC condensors can restrict flow, but it's definitely an air flow problem.

Kurt
 
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