Ford 7.5L 460 loss of power when hot
Hi guys, i just acquired a 1991 27' fleetwood class c rv. It sat for about 8 years before i bought it. I've since drained the old gas, new fuel filter, trans flush, motor flush and new battery. It fir...
Forum Discussion
weschaney wrote:
Jim, it bogs and bucks, in neutral i can control the rpm fine, only when under load (in drive) it starts to buck and bog. The more research i do I'm finding a difference between fuel pressure and fuel volume. in some instances you can have good pressure, but the pump can be so clogged the volume is compensated thus starving the engine of fuel. kinda weird and hurts my head. I plan on testing the pressure while driving today. Thank you for the info.
Do you have 2 tanks or just 1? 2 tanks has a pump in each tank. Two tanks two pumps it is easy to evaluate.
Both my trucks have the 2 tank thing... My 89 had 1 pump for both tanks and my 04 has 2, one in each tank.
Yes it does sound like it is intermittently encountering a fuel delivery problem...
Measuring the fuel pressure will not separate a failure between the regulator and pump.
Well there is more, it could be electrical but I rather doubt it because as soon as you relieve the demand for flow, back to idle the engine does not die.
So if you were to power brake the rig upon failure and you are sitting the engine will bog there too? Power brake= in gear, depress the brakes and give it the gas not floor it but like you are going to take off.
UGGGG.
