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2,000 rpm fluctuation at 55 mph
My 97 7.3L engine seems to go to pretty high rpm prior to shifting and once I reach 55 mph will go up and down about 2,000 rpm. It’s almost like having a Jake brake set itself for about three seconds and then off for a few seconds, Jake again for three, off again for few. My brother thinks this...- treerxjon
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- Replies: 6
- Forum: 7.3L Powerstroke Diesels
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Low vacuum pressure switch work around help please
Hi, While overhauling my old rust bucket I knocked the plastic nipple off of my low vacuum pressure switch. Theses low vacuum pressure switches haven’t been manufactured in quite some time and are pretty impossible to find. I came across a guy on this site who had taken a...- treerxjon
- Thread
- Replies: 4
- Forum: 6.9L IH & 7.3L IDI Diesels
