496 BB

Had the Iridium NGKs in there and noticed that it calls for Toyota dual grounds so I replaced em and now it feels like its a slug. No missing, no hesitation....just slower than its normal slowness. Any reason you can think of? All my vacuum lines and such are all back on intake. I cleand the TB too. All I did since then is take off the rear e brake mechanisms and clean and sand em down so they operate smoothly and re installed the e brake cables. Rear shoes may need adjusted more but Im afraid thats gonna slow it down even more. Leaving on vaca soon and need to figure this out as its driving me nuts.

Elton

soo did you use ngk or denso dual grounds ?

496 BB

Sorry. Yea I currently am running OEM Denzo dual grounds I got at local Toyota dealer.

brian2sun

Did you have the problem before you cleaned and serviced the e brake? I'm thinking maybe the e brake is adjusted too much and is putting resistance on the rear wheels. Maybe try to jack up the back and see if the tires spin freely with the e brake off.

496 BB

No. BUT I also didnt have these plugs in either. This thing is starting to be a PITA. If anything I dont think the rear brakes are adjusted enough because when I stop it lurches the truck forward and they are touchy as hell.

Im gonna spin them tomorrow. How free should they spin? Rear tires that is. Thanks for replies and keep em coming.