- Dec 7, 2011
- 68
Hi folks,
Towing the 21' boat to the lake today, I had two issues...
1) I tow in 3rd gear to keep trans temps down. I cruise ~70 mph @ 3k RPM. When I start going up a hill, it kicks down and jumps to ~4k RPM. Last season when it would do this, it was loud, so I take it out of cruise. This trip, when it kicked down, the engine made more noise than usual and there was a vibration until I reduced the RPM. Does that sound like a motor mount?
2) Going to the lake, I noticed the fuel mileage was worse than usual... ~9 MPG
Coming back from the lake, we were on the interstate and I looked down and the Service Engine Soon light was on. It was a P0171. From the other threads, it sounds like that could be anything...? What are you thoughts on that and is it related to my back mileage?
Thanks- Dan
Towing the 21' boat to the lake today, I had two issues...
1) I tow in 3rd gear to keep trans temps down. I cruise ~70 mph @ 3k RPM. When I start going up a hill, it kicks down and jumps to ~4k RPM. Last season when it would do this, it was loud, so I take it out of cruise. This trip, when it kicked down, the engine made more noise than usual and there was a vibration until I reduced the RPM. Does that sound like a motor mount?
2) Going to the lake, I noticed the fuel mileage was worse than usual... ~9 MPG
![Eeeek! :eek: :eek:](/forums/smilies/eek.gif)
Thanks- Dan