My cheap E-Fan mod

***88Racing*** · #1 Wed, February 11th, 2009, 01:02 AM

My work truck(03 gmc 2500hd) was actually experiencing over heating issues 3 years ago while on a job where the only power was coming from the invertor in it. So the remedy our truck service company came up with was bigger altenator and the robbed the electric fans and shroud out of wrecked tahoe of the same year. Funny wired right into the harness. The tech had said most vehicles these days were never meant idle more than a half hour in hot temps. With that in mind the electric fans are a great idea for a lot of trucks mfg after 2000(rpms are lower). He also said that the dual fans act together in a 2 stage operation. But the most important point that calmed the boss down was this: incase one failed there was a back up. I know belts break too! Just food for thought.

Lars

Buckeyes903 · #2 Wed, February 11th, 2009, 04:45 PM

Quote:

Originally Posted by 88Racing

He also said that the dual fans act together in a 2 stage operation. But the most important point that calmed the boss down was this: incase one failed there was a back up. I know belts break too! Just food for thought.

Lars

I noticed my g/f's 2002 Dakota has both a clutch fan and an electric fan, now I know why, or atleast have a reason for it.

***88Racing*** · #3 Wed, February 11th, 2009, 05:16 PM

Some engineer @ dodge was probably thinking for once. Wonder if he got a bonus? Just kidding. Don't know why EFI vehicles run lower rpm's? Or why some of the clutches do not kick in until 1000 to 1200 rpm's? The mechanic demonstrated this on a ford f150 and my gmc 2500hd, he had set up clamp to stop it with a load gauge. Sure enough they both were free spinning. Got the gmc to 1100 rpm's and the load increased. The ford was at about 1050 rpm's.

-Lars

Buckeyes903 · #4 Wed, February 11th, 2009, 10:20 PM

Quote:

Originally Posted by 88Racing

Some engineer @ dodge was probably thinking for once.
-Lars

Yeah, they probably finally got one good engineer and all the others only let him change the fan setup.

***88Racing*** · #5 Thu, February 12th, 2009, 12:00 AM

That dodge idea is not a bad one, especially if your putzing around or idling alot. On the economy side and performance end, kind of putting extra load on front end of that motor? If everything decided to operate at once. AC, fan clutch, and extra load on alternator. In the gmc clutch fan went bye-bye and got 2mpg more. Yehaw went from 6 to 8 in town and 7 to 10 on highway on that 6.0. That truck only weighs in at 10500! All the time! Wish boss would pay for a tuner on this truck.

-Lars