There are a number of vendors selling FSD heatsinks.
The heat sink I used was from Hucksdorf diesel and cost me 210.00 when this article was written. They have a shop in Franklin Wisconsin which is down by Mitchell Airport (Milwaukee). I believe that this product is comparable to the other heat sinks available for the HUMMER although I have never seen the other heat sinks up close.
Hucksdorf told me that if I needed a new injector pump down the road they would sell me one without the FSD for 650.00 which would be a nice savings.
You can get fsd resistors from (877) 375-7867 They are $16 each. (These are the prices when the article was written so they probably have changed)
Flash Off-Road Heatsink Kit
Other Sources of Coolers:
Hucksdorf
Polar Flow
SS Diesel Supply
Midwest Fuel Injection
J&H Diesel Service
Another owner bought his heatsink from Midwest Fuel Injection Corporation, They'll try to sell you the Van adopter kit but you don't really need it unless you mount it on the intake.
A company is making an improved version of the FSD. The SOL-D module from RemarQ is a complete redesign of the
original Stanadyne FSD (Fuel Solenoid Driver) module using automotive and
military grade Mosfet power transistor technology.
(1/2006) I had a SOL-D for almost a year, it worked great, than just flat quit on me. No warning, no nothing. I sent a couple of E-mails as it has a 5 year warranty. After a week or so they said they would replace it if I could find the warranty card and FAX it to them. Well I could not find the thing so I replied advising them I could provide all of the information that was on the card. In fact, I am still on the system on their website. I have heard nothing since and that was several weeks ago. I replied to two separate E-mails, no response, no replaced unit. Go Figure!
SOL-D had a minor issue as well. They ended up recalling
their first generation units and replaced them with upgraded ones. This is
even documented on their web site in the FAQ.
Supposedly, they use MOSFET transistors rather than the Darlingtons that are
present in the stock FSD. They also admit that there is an increase in
noise over the stock FSD.
The first step in installing the FSD and heat sink
is to remove the harness that connects to the old FSD located on the injector pump. I removed the large intake hose that runs to the air filter, which seemed to make it a little easier to get at the injector pump
Also remove the ground, a black wire on the top of the injector pump, which is secured by a TORX head. Attach the new extended ground wire to the top of the injector pump, where the old ground was removed.
Next prepare to drill the holes to mount the heat sink.
I found that just to the right of the center hood snubber on the firewall worked perfectly. Lay a strip of masking tape down, then place the new heat sink on top the tape, and then trace the holes. I used a ¼ inch drill bit to drill the holes. Drilling through the masking tape ensures that the metal flakes from the drill bit will not chip your paint. I had to remove one of the windshield washer lines to allow the placement of the new heat sink.
NOTE: I think that the best place to mount a FSD Cooler is as far away from the engine as you can so it's away from all of the heat. Some have mounted it in a wheel well which is fine as long as mud and road dirt don't clog the cooling fins. You will need to extend the wiring harness.
The heat sink should be large enough to absorb and dissipate heat for an indefinite period.
