Hot Fuel Handling Module

[kipps]

Originally Posted by WOOS1

...Is this module only in the heavy duty trucks? Ever offered in a full sized blazer?...

Realize it's an old thread, but I've read that the hot fuel module was also added to lighter trucks that were equipped with the big block. With either the big block or heavy towing, underhood temps were enough to cause vapor lock. Hence the extended fuel pump run time.

I think this was GM's way of a work around. They could have coded the computer to keep the fuel pump on longer in the v30's and big blocks, but it would have meant stocking a larger selection of computers. This was the cheaper solution, since the engine computer didn't care whether the engine was in a v30 or not.