I've been having an ongoing problem with my 85 1 ton (454, original Rochester).
Sometimes when I bounce the truck hard (bad railroad tracks, etc) it sputters and stalls out. It does not happen everytime I hit a bad bump, but it never stalls otherwise. I obviously try to keep things from getting too bumpy, but it happens.
It acts kind of like it has flooded, because it will usually start back up after having a few minutes to breath....but a lot of the time, once it starts again it won't hold an idle, but I can keep it running if I keep the RPMS up....which makes me think it might be a vacuum leak, even though if I don't hit a bump it idles fine.
Any ideas of what to look for? Thanks
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