Attention: TDR Forum Junkies Today I was learning how the fuel system works on my 96, reading the TDR, then looking at the truck and figuring out what goes where. I didnt change anything, just followed the lines I couldnt see with my fingers to trace them. When I started the truck, it ran surprisingly well for the cooler weather we're having today, idled about 800 rpm. I get in to leave, cross the street and accelerate. When I tried to stop a few hundred feet later, the engine stayed revved to about 1300 rpm. I thought the throttle might be stuck but it seems to rev higher fine, but won't return to idle. This thing is hard to stop running so fast so I came back home. Is there anything that I could have done to make it stick high? How far forward should the throttle lever rest? It looks like about a 1/4" gap between the lever and the frame for the tps.
... reason I was studying the fuel system, I suspected a few weeks ago my fuel pressure was low so I stretched the spring on the overflow valve-was 7/16", now its between a half and 9/16". Now I have a fuel leak, it seems like its coming from the plastic drain on the bottom of the fuel filter, or from a seam on the bottom of the filter itself. Theres a rust colored mark on the seam where it necks down to the threaded portion of the bottom. Its a slow leak, or drip. Well I figured I might have stretched the spring too far so I tried calling Marty Tompkins earlier for a replacement and perhaps a lift pump and filter drain, but he was out today. This truck has nearly 250k miles so I figure it can't hurt to get a new lift pump, eh?
reason #2 for studying the fuel system... I'm getting the bombing bug
:--)
So why is my truck idling so high? Thanks!!
Andy
... reason I was studying the fuel system, I suspected a few weeks ago my fuel pressure was low so I stretched the spring on the overflow valve-was 7/16", now its between a half and 9/16". Now I have a fuel leak, it seems like its coming from the plastic drain on the bottom of the fuel filter, or from a seam on the bottom of the filter itself. Theres a rust colored mark on the seam where it necks down to the threaded portion of the bottom. Its a slow leak, or drip. Well I figured I might have stretched the spring too far so I tried calling Marty Tompkins earlier for a replacement and perhaps a lift pump and filter drain, but he was out today. This truck has nearly 250k miles so I figure it can't hurt to get a new lift pump, eh?
reason #2 for studying the fuel system... I'm getting the bombing bug
:--)
So why is my truck idling so high? Thanks!!
Andy
Snap it back in place and it runs great. Now for more research on BOMBs and trannys... 
