Have a 4.3 that on cold start idles like a dream, I let the rpm drop, and it drives good with plenty of power to maintain 75 on the highway however after a while it slowly starts to loose power and won’t maintain speed in fifth gear on a level road and starts hesitating while driving through...
I have a 1992 Silverado with a 4.3l TBI runs strong but for some reason when it gets to operating temp (just under 210.) it looses oil pressure and starts makeing a sound similar to a bad bearing but it drops a few degrees and completely stops and I get full oil pressure (30 psi) almost like...