Dodge Ram fan?

[BleedDodge]

Hey wait, what are you doing blaming this on the fan? There's probably something wrong with your truck if you're getting 10 mpg! Is your check engine light on? Does anything else act up with the truck?

[rajjhauf]

Not blaming it all on my fan, no check engine light, runs great. I bought it with high milage and have had it for a couple of years now, 10 mpg from day one, I've changed tranny,fuel,oil,and air filters with no improvement with milage. I love the truck but the milage is killing me. Any ideas?

[slantsixness]

Let me clear this up.

Rajjhauf:
check your cam timing. I've seen a cam on a 5.9L magnum in a '93 ramcharger that, from the Factory, had a defective crank. The key slot for the cam gear was cut wrong in the crank, and left the cam 6 degrees retarded. This caused the truck to average 10Mpg or worse, but it ran smooth as silk. It also tended to run a little hot. After the cam/crank was dialed in (adjusted), the thing got 17Mpg with 3.91 gears on the highway. The cam ended up about 1 degree advanced, due to limitations with the offset keys, but what a difference it made. You might want to tear yours down and at least check true cam timing.

But I don't know how much you want to do. There is a post on ramchargercentral.com regarding a similar situation, but it was a power band issue, but I usually don't even recommend dialing in cams, if they're wrong, something is wrong, like my ramcharger was.
When my ramcharger was in this condition, it was still under warranty, it was fixed around the summer of '94 at 20Kmiles. I traded it in fall of '96, but I never got any more bad MPG, or any more trouble with it at all.

so try this if you like, or you can.

Slantsixness

[rajjhauf]

I will have to look into this when I have time to tear it down. Thank you very much.