Chevrolet Repair: 1997 Tahoe Problem, highway speed, highway speeds

Question
Any ideas what is causing the following problem? 1997 Tahoe, automatic transmission, 5.8L V8 engine, 140K miles. When problem occurs, will be driving at highway speeds, engine continues to run, but vehicle loses speed and must be moved to side of road (engine still running). The engine is turned off and re-started, chugging/clanking sound is heard from rear, also lurching/surging is felt and gradually smooth/normal speed can be resumed. For background information, I have never waited with the engine running to see if normal operation is regained. I have always turned the engine off and re-started. Thanks for your comments.


Answer
Hi Don, I would like to know if there is a check engine light on when this happens. I will go with there isn't, The first thing I would do is replace the fuel filter. If this doesn't do anything then you need to scan the engine data to check for any bad sensors. These trucks really don't have any trouble in this area. I have seen the valves stick in the guides at highway speed but this almost always turns on the check engine light.

Hope this helps

Have a Great Day                  Mark