I have noticed my truck surging a little latly and was wondering if it could be the APPS. It feels like driving into a gusty wind. Would it give a code if it was acting up? I havn't check for any yet.

I replaced my APPS with one from Timbo and it fixed my problem. Great product . Easy to install (about 20 minutes) and excellent instructions. Thanks to everyone for the input and advise.

Thanks Moostang, I've been having a surge that is getting a little worse over time (last 20000 miles highway miles) it has only happened with the camper on and the adrenaline on level 1 or 2 (no wire tap) but recently I have noticed it even without the Adrenaline being on. Happens from 45 to 55mph in Overdrive locked up only. Seems to happen on level ground, as soon as I push on it a little the surgeing stops. I have confirmed it's not the torque conveter or fuel psi. I have replaced map sensor, IAT, batterys, cleaned all grounds and checked all connections, so think I will try timbo apps. Thanks again Moostang.

You might check the alternator for a bad diode AC noise will cause the same issues too...

Thanks Mike I will give that a try, hope my 30$ multi meter will be as fast as your Fluke meter and be able to pick up the voltage fluctuations if it has any.

I replaced my APPS with one from Timbo and it fixed my problem. Great product . Easy to install (about 20 minutes) and excellent instructions. Thanks to everyone for the input and advise.

I give a second:thumbup2: to the APPS from Timbo, it fixed a problem that I had for a year and just put up with...:banghead: