C6 Tech/Performance LS2, LS3, LS7, LS9 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

D3PE fan users

Thread Tools
 
Search this Thread
 
Old Jul 28, 2016 | 04:17 PM
  #1  
badass68's Avatar
badass68
Thread Starter
Instructor
10 Year Member
 
Joined: Sep 2008
Posts: 209
Likes: 14
From: houston texas
Default D3PE fan users

Anyone notice your voltage gauge and digital readout jumping around after fan install? Mine does, and if I pull the fan fuse it goes back to normal. I'm about to hook up the scope and figure out what's going on.
Reply
Old Jul 28, 2016 | 04:36 PM
  #2  
schpenxel's Avatar
schpenxel
Race Director
20 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2004
Posts: 16,667
Likes: 1,209
From: Raleigh, NC
St. Jude Donor '15
Default

What alternator are you running?

I can only assume those fans pull a decent amount of current..
Reply
Old Jul 28, 2016 | 09:09 PM
  #3  
badass68's Avatar
badass68
Thread Starter
Instructor
10 Year Member
 
Joined: Sep 2008
Posts: 209
Likes: 14
From: houston texas
Default

Stock alternator. Not the problem though.

At the alt. and battery voltage is stable with a meter. With the scope, it's a different story though. The fan motors are producing voltage spikes every time the solid state relay turns off and on (150v for 15m/s long). This noise is causing the ecu to have false voltage readings. I'm betting this will cause problems with injector voltage offsets. I jumped the fans straight to the battery.
Gauge and digital readout are stable again. I have a few ford pwm cooling fan modules I'm going to wire up tomorrow. They're like the c6 module, just easier to come by and more like a motor controller than a ssr.
Reply
Old Jul 28, 2016 | 09:18 PM
  #4  
Brian.'s Avatar
Brian.
Advanced
 
Joined: Mar 2015
Posts: 74
Likes: 5
Default

Awesome ! More crap to deal with when I get to install mine
Reply
Old Jul 29, 2016 | 11:07 AM
  #5  
MLRS's Avatar
MLRS
Racer
 
Joined: Feb 2014
Posts: 471
Likes: 29
Default

Please keep us informed, hopefully its not going to be a big deal???
Reply
Old Jul 29, 2016 | 01:44 PM
  #6  
badass68's Avatar
badass68
Thread Starter
Instructor
10 Year Member
 
Joined: Sep 2008
Posts: 209
Likes: 14
From: houston texas
Default

Success! Ford modules installed and work great. I used one for each fan. They're rated at 60 amps, so no problems there. Voltage is stable and back to normal. Also, these modules have a soft start and put out 100% power at 90% pwm. So no programming needed.


Reply
Old Jul 29, 2016 | 03:38 PM
  #7  
Unreal's Avatar
Unreal
Team Owner
15 Year Member
 
Joined: Nov 2007
Posts: 24,035
Likes: 2,342
From: Gilbert AZ
Default

Tons of users using these and first person with this problem. I wonder if you have a borderline charging system or a bad pwm relay from d3. I've seen plenty of these installed with no issues.
Reply
Old Jul 29, 2016 | 03:55 PM
  #8  
cwylie's Avatar
cwylie
Pro
10 Year Member
 
Joined: Nov 2011
Posts: 592
Likes: 13
From: Austin Texas
Default

Yeah reach out to D3. I had a bad controller and they got me fixed up.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Jul 29, 2016 | 04:01 PM
  #9  
RPOWU8's Avatar
RPOWU8
Instructor
Supporting Lifetime
20 Year Member
All Eyes On Me
Liked
Loved
 
Joined: Dec 2005
Posts: 248
Likes: 31
From: TN
Default

P/N or application on these Ford PWM Modules?

Thanks,

DJ

Originally Posted by badass68
Success! Ford modules installed and work great. I used one for each fan. They're rated at 60 amps, so no problems there. Voltage is stable and back to normal. Also, these modules have a soft start and put out 100% power at 90% pwm. So no programming needed.


Reply
Old Jul 29, 2016 | 04:16 PM
  #10  
badass68's Avatar
badass68
Thread Starter
Instructor
10 Year Member
 
Joined: Sep 2008
Posts: 209
Likes: 14
From: houston texas
Default

Originally Posted by Unreal
Tons of users using these and first person with this problem. I wonder if you have a borderline charging system or a bad pwm relay from d3. I've seen plenty of these installed with no issues.
It's really not a problem unless you watch the volt meter like a hawk.
Reply
Old Jul 29, 2016 | 04:19 PM
  #11  
badass68's Avatar
badass68
Thread Starter
Instructor
10 Year Member
 
Joined: Sep 2008
Posts: 209
Likes: 14
From: houston texas
Default

Originally Posted by RPOWU8
P/N or application on these Ford PWM Modules?

Thanks,

DJ
2005-2011
Town car
Crown Vic
Grand Marque

I've read the Focus and Edge have very similar controllers.
Reply
Old Jul 29, 2016 | 04:22 PM
  #12  
badass68's Avatar
badass68
Thread Starter
Instructor
10 Year Member
 
Joined: Sep 2008
Posts: 209
Likes: 14
From: houston texas
Default

Originally Posted by cwylie
Yeah reach out to D3. I had a bad controller and they got me fixed up.
Yeah, I was just wondering if anyone else has seen this happen.
Reply
Old Jul 29, 2016 | 09:54 PM
  #13  
ILLUSHN's Avatar
ILLUSHN
Safety Car
15 Year Member
 
Joined: Sep 2006
Posts: 4,759
Likes: 52
From: L.A. aka TooDamnManyPeopleville Ca.
Default

Reply
Old Jul 29, 2016 | 11:04 PM
  #14  
xBoostx's Avatar
xBoostx
Melting Slicks
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2006
Posts: 2,497
Likes: 261
From: Miami Florida
Default

Originally Posted by badass68
2005-2011
Town car
Crown Vic
Grand Marque

I've read the Focus and Edge have very similar controllers.
Hey bad I'm about to order a set from D3 interested in the Ford controllers; question how to wire them up and is it necessary to cut any wires thank you.
Reply
Old Aug 1, 2016 | 12:51 PM
  #15  
badass68's Avatar
badass68
Thread Starter
Instructor
10 Year Member
 
Joined: Sep 2008
Posts: 209
Likes: 14
From: houston texas
Default

Originally Posted by xBoostx
Hey bad I'm about to order a set from D3 interested in the Ford controllers; question how to wire them up and is it necessary to cut any wires thank you.
No cutting of factory wires.
Reply
Old Aug 6, 2016 | 12:21 AM
  #16  
Brian.'s Avatar
Brian.
Advanced
 
Joined: Mar 2015
Posts: 74
Likes: 5
Default Controller

Originally Posted by badass68
No cutting of factory wires.
Any idea what the white paste is under the D3 pwm controller ?

Last edited by Brian.; Aug 6, 2016 at 12:22 AM. Reason: Language
Reply
Old Aug 6, 2016 | 12:48 AM
  #17  
Brian.'s Avatar
Brian.
Advanced
 
Joined: Mar 2015
Posts: 74
Likes: 5
Default Got it

Originally Posted by Brian.
Any idea what the white paste is under the D3 pwm controller ?
Disregard. I figured it out
Reply

Get notified of new replies

To D3PE fan users

Old Aug 6, 2016 | 12:50 AM
  #18  
cwylie's Avatar
cwylie
Pro
10 Year Member
 
Joined: Nov 2011
Posts: 592
Likes: 13
From: Austin Texas
Default

Thermal paste
Reply
Old Aug 10, 2016 | 02:52 PM
  #19  
badass68's Avatar
badass68
Thread Starter
Instructor
10 Year Member
 
Joined: Sep 2008
Posts: 209
Likes: 14
From: houston texas
Default

FYI. I drove my friend's ZR1 today. It has D3PE fans on it also. The voltage gauge does the same thing my car did. Jumps around and not stable.
Reply
Old Aug 14, 2016 | 08:24 AM
  #20  
Hallett's Avatar
Hallett
Instructor
15 Year Member
 
Joined: Jul 2008
Posts: 132
Likes: 10
Default

Had mine installed it's doing the same thing I'm not happy with there reply when I contacted them they stated I might need to upgrade the alternator. Definitely there is a problem.
Reply



All times are GMT -4. The time now is 03:37 PM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE