'87-89 4.9L Injector Blower
Unnecessary dead weight; the motor is prone to rust & seize, and the control relay/timer module (usually mounted on the passenger side behind the fan shroud) is prone to overheat. Either can cause a fire, so the system should be disabled & deleted. That's what Ford did around '90.
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Y/LB - hot at all times via Fuse 16
Gy/Y - hot in RUN
![injectorblower.jpg '87-89 4.9L Injector Blower
Unnecessary dead weight; the motor is prone to rust & seize, and the control relay/timer module (usually mounted on the passenger side behind the fan shroud) is prone to overheat. Either can cause a fire, so the system should be disabled & deleted. That's what Ford did around '90.
[url=http://www.supermotors.net/registry/media/544458][img]http://www.supermotors.net/getfile/544458/thumbnail/injectorblower.jpg[/img][/url] . [url=http://www.supermotors.net/registry/media/624967][img]http://www.supermotors.net/getfile/624967/thumbnail/fansw49l.jpg[/img][/url] . [url=https://www.supermotors.net/registry/media/980252][img]https://www.supermotors.net/getfile/980252/thumbnail/injblrrelay.jpg[/img][/url]
Y/LB - hot at all times via Fuse 16
Gy/Y - hot in RUN](https://www.supermotors.net/getfile/894690/fullsize/injectorblower.jpg)