Your fun should turn relatively easily with a finger. This time of year, you shouldnt ever hear a fan after 15 minutes of idle. Its toasted. As far as the mileage, I am getting ready for the FPR shim. I have everything else. Well see what happens.

 

The stock fan clutch is heavy duty. Look up prices for a gasser compared to a diesel. Almost a $180 difference in price.

I agree with Todd, it's toast.

 

Took the truck and trailer (loaded) up to the races yesterday....first time I've pulled with it. Last time we pulled anything, we used a 2000 F150 with a 5.4/auto.

Boy the F250 is a world difference in pulling!

But I got sick of hearing the fan wailing away under the hood. Jeez that thing is noisy! I'm going to HAVE to replace the clutch. The Tymar intake (DIY version) is nice too. Above 2000 RPM throttle on the floor, it makes a really nice high pitch whistle. Subtle, but it is there.

The other issue is that that stupid auto transmission is a turd. Seems like it locks the converter between 2nd and 3rd gear, right at the 2-3 shift. Quite annoying especially in town with a heavy load on the back. Any fix for this? Shift kit maybe? It's VERY annoying!

Other than that, and only having 3.55 rear gear...(thought it was a 3.73 but I looked at the tag and confirmed that it is 3.55)...3.55 means that it's almost on the floor on the freeway at 70 mph. I'm pulling almost 8000 lbs. What is a better option, 3.73 or 4.10? Truck gets a mixed city/highway driving. I like the truck--pulls good but crappy fuel mileage.

Going to have to get a downpipe and kat delete though. Did one on my brother's '97 and it made a big difference in response. And since these older pickups have a non-wastegated turbo, they require RPM to make boost....and the downpipe will help turbo response quite a bit.

Thanks for all your help and suggestions. I always did like this site, especially the diesel tech sections, just for this reason. Lots of great information.

 

Its the PCM code that's crap. Your code will do this due to you are deep into the throttle. Have the PCM reflashed. It will give you the latest burn a will be a major help with your trans issue. The latest will be TDE1. Also you could be OBD1, the upgrade will be OBD2.

Bill

 

Bill, Thanks. What does that normally cost? Dealer only I assume?

 

Dealer can flash.
Replacement PCM.
Chip can also do it.
DP Tuner can flash. His tune.

Least amount of $ would be the dealer flash.

Bill

 

I Have The Same Problem < Need Answers Now Bill>...........lol

 

That could be an entirely different issue.

I have an E4OD with 4.10 gears. My unloaded combined driving is in the 17.25 mpg - 17.5 mpg range. Towing my 24-foot travel trailer, I get a combined average of 12.5 mpg - 13.5 mpg.

Mods are listed in my signature. I'd go with the 4.10s if you haven't changed them yet.

 

Could be but very typical of NAW with 3.55 towing.

Bill

 

What does "NAW" mean?

 

find wmiller on here of rising sun, md. hes my freind and i had him rig a tc lock on a toggle switch.i throw the switch on to lock it at 2500 rpm in 2nd gear. that will solve ur shift problem. message him bout what wires to tap into. it should be purple and yellow. but on my tuck it makes a world of difference towin almost like havin an extra gear. one of the uys on here might be able to tell ya what im talkin bout if they see this message

 

NAW is a CRAPY pcm code... used to have a NAW6 in my truck... Chip turned it into a TDE1... much better overall PCM

-Robb

 

How do I determine what PCM code I have?