Is the throttle body & and sensor the only things that could cause this? I just put in a rebuilt long block have 3500 miles on it. I replaced the throttle body at the request of the shop because my old one they said they had to remove a spring because it was not going all the way down to Idle. Now after getting a throttle body from a wrecking yard it seems they were talking about a dash pot ? These guys are a fairly good size operation I find it odd they just said it was a spring and was hard to explain. So I replaced the body I'm not real sure mine was bad I could get what felt like slop on the original but I noticed on the used one I bought had slight slop also but I can only feel it when they are closed. The first was worse then the second. The sensor felt great and adjusted fine. I'm using a quart every 500 to 1000 miles seems better off the freeway? Needless to say I cant go back to these jokers they left several hose clamps off and seemed very hurried working and were selling parts over the phones all then time they were doing there work plus the said the clean up the Throttle Body they never even had it OFF.
I guess my questions are. Send in a oil sample? Is the dash pot necessary? And what order would you put the priority's and any suggestions.
This is on a 88 4X4 22RE
Thanks for any help.