Engine/Transmission (1994 - 1998) Strang ticking noise?

[AMcKee]

Ok guys my truck currently has 155k on the clock and I just recently noticed it making a funny noise. It sounds like a gas engine detonating or like an electrical arch and sounds like its coming from under the driver's seat area. The noise shows up most clearly under deceleration between 1500 and 1250 rpm. It will also tick if i leave it in neutral and rev it between those rpm's. It doesnt tick at any other rpm's. I dont hear it under load but i guess that it may be occurring and I just cant hear it over the symphony the 5. 9 makes. I have heard some guys talk about lift pumps making similar noises. Now my dilemma is that I have a 2000 mile trip planned for next week and I really dont want to be stranded (and I will call you guys on the campanion ). Let me know what you think... any help is greatly appreciated as usual.



Thnx,

Andy



p. s. - I will be traveling from central Fl to the TN, NC boarder... let me know if anyone needs anything hauled.