1999 2v v10 f53 fleetwood bounder poor performance
The motorhome was placed into storage in Late Oct, or early November. It was stored with a full tank of gasoline and with enough fuel stabilizer to stabilize the fuel for up to 2 years (or enough to stabilize twice the amount of fuel in the tank).
When parked, we had just returned from a 2000 mile trip, and had another 2000 mile trip about 4-6 weeks prior. Everything was great, tons of power and running smooth. Purring like a kitten.
Started it up last weekend for the first time since parking. Of course it was colder than the engine liked (23 degrees F), but after a few attempts it did start. At idle, the engine runs well, and when the throttle is pressed it revs up quickly and has a healthy, loud, fast, roar. There is no misfiring, stuttering, or backfiring as it idles or throttles down from 5000 rpm. When shifting into gear, it is smooth and responsive.
In town, the vehicle seems to perform as normal except for in hard accelerations where you can feel some slight (I dont know what to call the symptions) ??variation in engine power??
On the highway, it has a real hard time getting over 50mph. Going up a slight grade (maybe 3 percent?) it simply cannot exceed 50mph, and this is with throttle to floor at around 4-4.5k rpm!
I had this thing to 75mph (just to get to know its limits) last fall with no issues aside from the fuel guage lol
Bottom line, engine runs super great. Whats up?
Ideas on what it could be:
When parked, we had just returned from a 2000 mile trip, and had another 2000 mile trip about 4-6 weeks prior. Everything was great, tons of power and running smooth. Purring like a kitten.
Started it up last weekend for the first time since parking. Of course it was colder than the engine liked (23 degrees F), but after a few attempts it did start. At idle, the engine runs well, and when the throttle is pressed it revs up quickly and has a healthy, loud, fast, roar. There is no misfiring, stuttering, or backfiring as it idles or throttles down from 5000 rpm. When shifting into gear, it is smooth and responsive.
In town, the vehicle seems to perform as normal except for in hard accelerations where you can feel some slight (I dont know what to call the symptions) ??variation in engine power??
On the highway, it has a real hard time getting over 50mph. Going up a slight grade (maybe 3 percent?) it simply cannot exceed 50mph, and this is with throttle to floor at around 4-4.5k rpm!
I had this thing to 75mph (just to get to know its limits) last fall with no issues aside from the fuel guage lol
Bottom line, engine runs super great. Whats up?
Ideas on what it could be:
- Fuel filter (Where is it)
- Fuel pump
- Transmission slipping
