2000 Ford 6.8 v-10 motorhome shakes and looses power above 50mps, can't go above 60mph. Looses power on hills?
Have a 2000 motorhome that has a Ford 6.8 V10 engine. On my way back from New Orleans we started losing power. I can get up to 50 miles per hour and it starts to shake I can get it up to 60 and that's as fast as i can get then it just slips and shakes real bad. The only way I can increase speed above 60 is going downhill and tapping the gas pedal increase speed otherwise going uphill I start to lose speed and can't accelerate without slipping and a lot of vibration. With the scan tool it said I had misfires on cylinder 2, 7 + 8. All spark plugs were changed and cylinder coils. Cylinder 2 still shows misfire and the problem has not changed at first I thought it was a transmission but now I'm not so sure
Are you going to keep guessing and changing parts, or just take it to a mechanic?
http://www.cartalk.com/mechanics-files
Have you checked the gas pressure in the gas line? It could be running out of gas.
Perhaps the gas filter is partially clogged?
Feeding 10 cylinders will take good gas pressure, and lots of it too.
This fellas might help.other yt'ers in the stack who might offer a solution,
problem was a worn through rubber boot affixing the pcv valve to the crankcase
Check for spark in #2 with a tester. Check if the the #2 cylinder injector is firing or getting command to fire with a noid light. You can try swapping the injector from another cylinder that is not misfiring and put in #2. If the misfire goes to the other cylinder, replace the injector. Check compression on #2.
- Car shakes still? My 94 Ford Taurus shakes on the highway. 65-80 mph and after 80 it stops? I've gotten new tie rods, a realignment, new breaks, and resurfaced rotors, and it still happens to shake even though the mechanic said that the problem was the rotors being warped. Before I spend more money on the damned thing I was wondering if anyone here had some insight to why it's still shaking on the highway. One thing I've noticed is that when I accelerate a chirping sound ensues and chirps faster as I go faster? Any ideas? Please?
- Rattling noise coming from passenger side possibly engine when going up steep hills, for ranger? I ave a 2007 ford ranger and recently when going up hills there has been a rattling noise that seems to come from the passenger side towards the engine or front of the truck. What could cause this? I also recently had an oil change, and they put 5w30 in instead of the recommended 5w20, could any of this be a cause?
- I have a 1986 ford with the C6 tranny on a motorhome what fluid does it take? It looks like from what I was reading that type F is what will work but then I ran across info that states its only used in c6's from the 70's. Am I ok using type F? Also this vehicle is new to me is there anyway to tell what fluid type is in it now?
- My truck shakes up and down near the steering wheel when I ride between 40mph and 45mph. Why? For the past couple years, my truck has been shaking when I drive between 40 and 45mph. It doesn't happen as much when I accelerate past that, but when I maintain in a 40 mph zone or slowly accelerate from that speed it's a little bit annoying. My truck is a Ford F-150 V8 Automatic 1999 and has 230k miles. I've been in a tiny wreck once with it, but I'm sure it was going on before that.