Won't shift into OD at wot over 3000rpms??

T

talonkid119

Not Enough
Joined
Oct 25, 2009
Messages
107
Im still trying to work all my little bugs out of the truck. The truck has been shifting good besides when i shift from 3rd into overdrive over 3k, anything under thoes rpms with it will shift fine. I would like to be able to run it out to 3700-4000 before i shift into overdrive. So i know it isnt the switch it seems to be working fine. Could i have a ground problem somewhere and im not getting enough voltage? has anyone else ran into a problem like this before?

thanks,
Mike
 
have you checked the TPS for a dead spot up towards WOT, and your TV cable to be sure its not too tight?
 
stubz616 said:
have you checked the TPS for a dead spot up towards WOT, and your TV cable to be sure its not too tight?
Click to expand...

I forgot to mention i have a pot, it was also doing the same thing when i had the tps hooked up too. I will double check the cable to make sure its not too tight, i adjusted it with the pedal at wot and bent the bracket back a little so there is no play and im getting full tv pressure.

thanks,
Mike
 
Last edited:
Are you sure you want to run the motor out to 3700 RPM?

When I'm at the drag strip, I noticed that my MPH drop if I let it run past 2800 rpm on the gear shifts.

Now I know every truck is different but mine seems to fall off around there.

With your 472 turbo, I'm sure a few more rpm wouldn't hurt but 3700 sounds really high. What kind of governor springs are you running?
 
Big Blue24 said:
Are you sure you want to run the motor out to 3700 RPM?

When I'm at the drag strip, I noticed that my MPH drop if I let it run past 2800 rpm on the gear shifts.

Now I know every truck is different but mine seems to fall off around there.

With your 472 turbo, I'm sure a few more rpm wouldn't hurt but 3700 sounds really high. What kind of governor springs are you running?
Click to expand...

Well i wanted to turn a little more out of the engine so i could have more mph in each gear. With my loose converter and the turbo not wanting to light fast enough i usually dont get it spooled till about 2600rpms and thats around 52psi or so. It seems to keep pulling past 3500. I still probably have to do somemore fine tuning with the afc.

I have the 4k gov springs in this 160pump and .022s, 25*.

thanks,
Mike
 
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