The main problem all of these systems attempt to correct is the tendency for the origional relay or the bypass to fail. I think that they all can acomplish that but the Fanzilla is the only one I know of that also restores the functionality of the fan fail light AND sequences the 2 fans so they both don't start at the same time. It is also the easiest one to install, not requireing any modifacations to the wiring except upgrading the circuit breaker and replacing the otterstadt switch (recommended). The biggest problem is the wiring system AND the cooling system MUST be in good, origional condition. It cannot make up for coolant leaks and air, wiring modifacations by previous owners, burnt wires, loose connections, etc. The only negetive comment I have heard about Fanzilla is it is too expensive, never about it's quality or function. The other alternatives are less expensive but in some cases require some effort to install. David Teitelbaum vin 10757 --- In dmcnews@xxxxxxxxxxxxxxx, "Richard" <dmc_driver@xxxx> wrote: > There seems to be several fan fixes available. Special T has the > Fan-Fix One, Fan-Fix Two and Fan-Fix Dual 2X2, and others. Then there > is the FanZilla from Grady's. There's probably more offered by the > other DMC vendors as well. I'm sure they are all excellent products, > but my question is which one I should use. My car has the "temporary" > fix in lieu of the blue fan-fail relay module, but it does exhibit the > classic engine power loss whenever the A/C compressor kicks in. I know > that FanZilla is supposed to remedy this plus reduce the load on the > cooling fan circuit and so are the other products. So which one > should I use? Do they each have a certain advantage over the next > one? Thanks. > > Richard > 5853