96 F-250 chugs...please help

[W-T-Katt]

Hi all, I've got a 1996 F-250 4x4 with a fuel injected 460. When the truck is cold, it runs great. When it gets to operating temp, it will chug & stutter under a load (going uphill etc.) It does this whether or not the egr is hooked up. I replaced the temp. sending unit for the computer & that did nothing. Also, should this year truck have the OBD2 system in it or not? I can't find ANY port whatsoever to plug a reader of any kind into. Thanks in advance for your help.

[khadma]

You should pull the codes to look for any DTCs even if the Check Engine Light is not on.

There should be a 16 pin OBDII connecting point at the bottom of the dash, below the ashtray. It has a black cover and it is kind of tucked back out of sight.

This sounds like it is EGR related, but pull the codes and post them here.

[snake19792]

if your truck was made in the later part of 95 then it may still have the OBD-I system and if so the plug for it will be under the hood on the drivers side in between the brake booster and the cruise control module. i have one like this state and ford call it a 96 but its actually a late 95.

[Joe2705]

Try to check the TP-Sensor.don't know fore shure but my 91' did the same.