I recently got my truck back from the shop after they installed a new short block. I don't think they had ever seen one of these before. The guy was surprised by the "broken" caps on the rods.

This is the first time I've driven it since I bought it broken. It seems to rev way too high before shifting out of 2nd and bucks really bad at around 40 MPH. When it finally settles into high gear, all is fine and it goes about 1700 RPM for 60 MPH.

I suspect the throttle position sensor did not get reset and I plan to do that tonight. Any other ideas for what to look for before I give up and head to the dealer?

Also, I paid for the engine swap myself since the dealer cancelled warranty on the engine due to a Banks system. That stuff is now gone, but any advice on not having them cancel the transmission warranty if I take it in?

I'm in the San Francisco Bay Area, is there a dealer that's much better or much worse than the others?

Thanks.

 

I reset the TPS following the directions I found here. The problem is still there It doesn't do it 100% of the time. I'd say 40-50%. Any ideas or is it just time for me to visit the dealer?

 

I would look at the throttle valve cable adjustment. It it a little detailed but here.........



ADJUSTMENTS - THROTTLE VALVE CABLE
A correctly adjusted throttle valve cable (1) will cause the throttle lever on the transmission to move simultaneously with the throttle body lever (3) from the idle position. Proper adjustment will allow simultaneous movement without causing the transmission throttle lever to either move ahead of, or lag behind the lever on the throttle body.

ADJUSTMENT VERIFICATION
Turn ignition key to OFF position.
Remove air cleaner.
Verify that lever on throttle body is at curb idle position. Then verify that the transmission throttle lever is also at idle (fully forward) position.
Slide cable off attachment stud on throttle body lever.
Compare position (B) of cable end to attachment stud on throttle body lever:
Cable end and attachment stud should be aligned (or centered on one another) to within 1 mm (0.039 in.) in either direction (B)(Throttle Valve Cable at Throttle Linkage).
If cable end and attachment stud are misaligned (off center), cable will have to be adjusted as described in Throttle Valve Cable Adjustment procedure.
Reconnect cable end to attachment stud. Then with aid of a helper, observe movement of transmission throttle lever and lever on throttle body.
If both levers move simultaneously from idle to half-throttle and back to idle position, adjustment is correct.
If transmission throttle lever moves ahead of, or lags behind throttle body lever, cable adjustment will be necessary. Or, if throttle body lever prevents transmission lever from returning to closed position, cable adjustment will be necessary.
ADJUSTMENT PROCEDURE
Turn ignition switch to OFF position.
Remove air cleaner if necessary.
Disconnect cable end (3)(Throttle Valve Cable at Throttle Linkage) from attachment stud on throttle lever (1). Carefully slide cable off stud. Do not pry or pull cable off.
Verify that transmission throttle lever is in fully closed position. Then be sure lever on throttle body is at curb idle position.
Pry the T.V. cable lock (A) into the UP position. This will unlock the cable and allow for readjustment.
Apply just enough tension on the T.V. cable (B) to remove any slack in the cable.Pulling too tight will cause the T.V. lever on the transmission to move out of its idle position, which will result in an incorrect T.V. cable adjustment. Slide the sheath of the T.V. cable (D) back and forth until the centerlines of the T.V. cable end (B) and the throttle bell crank lever (C) are aligned within one millimeter (1mm).
While holding the T.V. cable in the set position push the T.V. cable lock (A) into the down position. This will lock the present T.V. cable adjustment.
NOTE: Be sure that as the cable is pulled forward and centered on the throttle lever stud, the cable housing moves smoothly with the cable. Due to the angle at which the cable housing enters the spring housing, the cable housing may bind slightly and create an incorrect adjustment.

Reconnect the T.V. cable (B) to the throttle bellcrank lever (C).
Check cable adjustment. Verify transmission throttle lever and lever on throttle body move simultaneously.

 

Wow, that looks like a good way to spend an afternoon.

Thank you for taking the time to post that.